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update to 1.64

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- 1.62 2022-05-22 Added link to AccelStepper - The Missing Manual.
- Fixed a problem when setting the maxSpeed to 1.0 due to incomplete initialisation. Reported by Olivier Pécheux.
- 1.63 2022-06-30 Added virtual destructor at the request of Jan.
- 1.64 2022-10-31 Patch courtesy acwest: Changes to make AccelStepper more subclassable. These changes are largely oriented to implementing new step-scheduling algorithms.
This commit is contained in:
Patrick 2022-11-23 20:19:36 -05:00
parent a9bf2f93bf
commit 1255ab5682
13 changed files with 707 additions and 280 deletions
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4
LICENSE
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@ -1,4 +1,4 @@
This software is Copyright (C) 2008 Mike McCauley. Use is subject to license
This software is Copyright (C) Mike McCauley. Use is subject to license
conditions. The main licensing options available are GPL V3 or Commercial:
Open Source Licensing GPL V3
@ -14,4 +14,4 @@ Commercial Licensing
This is the appropriate option if you are creating proprietary applications
and you are not prepared to distribute and share the source code of your
application. Contact info@open.com.au for details.
application. Contact info@airspayce for details.

13
extras/doc/annotated.html
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@ -1,9 +1,9 @@
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>AccelStepper: Class List</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
@ -26,14 +26,15 @@
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<div id="main-nav"></div>
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<div class="header">
@ -50,9 +51,7 @@ $(function() {
</div><!-- contents -->
<!-- start footer part -->
<hr class="footer"/><address class="footer"><small>
Generated by &#160;<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/>
</a> 1.8.13
Generated by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.1
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20
extras/doc/classAccelStepper-members.html
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@ -1,9 +1,9 @@
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>AccelStepper: Member List</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
@ -26,14 +26,15 @@
</table>
</div>
<!-- end header part -->
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<div id="main-nav"></div>
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<div class="header">
@ -45,9 +46,11 @@ $(function() {
<p>This is the complete list of members for <a class="el" href="classAccelStepper.html">AccelStepper</a>, including all inherited members.</p>
<table class="directory">
<tr class="even"><td class="entry"><a class="el" href="classAccelStepper.html#a35162cdf8ed9a98f98984c177d5ade58">_direction</a></td><td class="entry"><a class="el" href="classAccelStepper.html">AccelStepper</a></td><td class="entry"><span class="mlabel">protected</span></td></tr>
<tr><td class="entry"><a class="el" href="classAccelStepper.html#a744fa74c2e181e75509a34b17c02e984">_stepInterval</a></td><td class="entry"><a class="el" href="classAccelStepper.html">AccelStepper</a></td><td class="entry"><span class="mlabel">protected</span></td></tr>
<tr class="even"><td class="entry"><a class="el" href="classAccelStepper.html#a8b76f1ae6a49d2c2887b9fea30b8d84f">acceleration</a>()</td><td class="entry"><a class="el" href="classAccelStepper.html">AccelStepper</a></td><td class="entry"></td></tr>
<tr><td class="entry"><a class="el" href="classAccelStepper.html#a3bc75bd6571b98a6177838ca81ac39ab">AccelStepper</a>(uint8_t interface=AccelStepper::FULL4WIRE, uint8_t pin1=2, uint8_t pin2=3, uint8_t pin3=4, uint8_t pin4=5, bool enable=true)</td><td class="entry"><a class="el" href="classAccelStepper.html">AccelStepper</a></td><td class="entry"></td></tr>
<tr class="even"><td class="entry"><a class="el" href="classAccelStepper.html#afa3061ce813303a8f2fa206ee8d012bd">AccelStepper</a>(void(*forward)(), void(*backward)())</td><td class="entry"><a class="el" href="classAccelStepper.html">AccelStepper</a></td><td class="entry"></td></tr>
<tr><td class="entry"><a class="el" href="classAccelStepper.html#affbee789b5c19165846cf0409860ae79">computeNewSpeed</a>()</td><td class="entry"><a class="el" href="classAccelStepper.html">AccelStepper</a></td><td class="entry"><span class="mlabel">protected</span></td></tr>
<tr><td class="entry"><a class="el" href="classAccelStepper.html#aab5944f43f869675958939c421bd9a01">computeNewSpeed</a>()</td><td class="entry"><a class="el" href="classAccelStepper.html">AccelStepper</a></td><td class="entry"><span class="mlabel">protected</span><span class="mlabel">virtual</span></td></tr>
<tr class="even"><td class="entry"><a class="el" href="classAccelStepper.html#a5dce13ab2a1b02b8f443318886bf6fc5">currentPosition</a>()</td><td class="entry"><a class="el" href="classAccelStepper.html">AccelStepper</a></td><td class="entry"></td></tr>
<tr><td class="entry"><a class="el" href="classAccelStepper.html#a7468f91a925c689c3ba250f8d074d228">Direction</a> enum name</td><td class="entry"><a class="el" href="classAccelStepper.html">AccelStepper</a></td><td class="entry"><span class="mlabel">protected</span></td></tr>
<tr class="even"><td class="entry"><a class="el" href="classAccelStepper.html#a7468f91a925c689c3ba250f8d074d228a6959a4549f734bd771d418f995ba4fb4">DIRECTION_CCW</a> enum value</td><td class="entry"><a class="el" href="classAccelStepper.html">AccelStepper</a></td><td class="entry"><span class="mlabel">protected</span></td></tr>
@ -90,14 +93,15 @@ $(function() {
<tr><td class="entry"><a class="el" href="classAccelStepper.html#a8910bd9218a54dfb7e2372a6d0bcca0c">step4</a>(long step)</td><td class="entry"><a class="el" href="classAccelStepper.html">AccelStepper</a></td><td class="entry"><span class="mlabel">protected</span><span class="mlabel">virtual</span></td></tr>
<tr class="even"><td class="entry"><a class="el" href="classAccelStepper.html#a4b0faf1ebc0c584ab606c0c0f66986b0">step6</a>(long step)</td><td class="entry"><a class="el" href="classAccelStepper.html">AccelStepper</a></td><td class="entry"><span class="mlabel">protected</span><span class="mlabel">virtual</span></td></tr>
<tr><td class="entry"><a class="el" href="classAccelStepper.html#aa909c6c3fcd3ea4b3ee1aa8b4d0f7e87">step8</a>(long step)</td><td class="entry"><a class="el" href="classAccelStepper.html">AccelStepper</a></td><td class="entry"><span class="mlabel">protected</span><span class="mlabel">virtual</span></td></tr>
<tr class="even"><td class="entry"><a class="el" href="classAccelStepper.html#af8abc9ede47286fa33b518e0bf297c6a">stepBackward</a>()</td><td class="entry"><a class="el" href="classAccelStepper.html">AccelStepper</a></td><td class="entry"><span class="mlabel">protected</span></td></tr>
<tr><td class="entry"><a class="el" href="classAccelStepper.html#af4908b53e1821f0a6d2dab509257b3e6">stepForward</a>()</td><td class="entry"><a class="el" href="classAccelStepper.html">AccelStepper</a></td><td class="entry"><span class="mlabel">protected</span></td></tr>
<tr class="even"><td class="entry"><a class="el" href="classAccelStepper.html#a638817b85aed9d5cd15c76a76c00aced">stop</a>()</td><td class="entry"><a class="el" href="classAccelStepper.html">AccelStepper</a></td><td class="entry"></td></tr>
<tr><td class="entry"><a class="el" href="classAccelStepper.html#a96685e0945b7cf75d5959da679cd911e">targetPosition</a>()</td><td class="entry"><a class="el" href="classAccelStepper.html">AccelStepper</a></td><td class="entry"></td></tr>
<tr class="even"><td class="entry"><a class="el" href="classAccelStepper.html#a89c4c8de0c983e7a59de6a959481aff1">~AccelStepper</a>()</td><td class="entry"><a class="el" href="classAccelStepper.html">AccelStepper</a></td><td class="entry"><span class="mlabel">inline</span><span class="mlabel">virtual</span></td></tr>
</table></div><!-- contents -->
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<hr class="footer"/><address class="footer"><small>
Generated by &#160;<a href="http://www.doxygen.org/index.html">
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</a> 1.8.13
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232
extras/doc/classAccelStepper.html
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@ -1,9 +1,9 @@
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@ -26,14 +26,15 @@
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@ -57,17 +58,17 @@ $(function() {
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-types"></a>
Public Types</h2></td></tr>
<tr class="memitem:a73bdecf1273d98d8c5fbcb764cabeea5"><td class="memItemLeft" align="right" valign="top">enum &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5">MotorInterfaceType</a> { <br />
&#160;&#160;<a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5af5bb99ad9d67ad2d85f840e3abcfe068">FUNCTION</a> = 0,
<a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5ac3523e4cf6763ba518d16fec3708ef23">DRIVER</a> = 1,
<a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5a62a305b52f749ff8c89138273fbb012d">FULL2WIRE</a> = 2,
<a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5a0b8eea5cf0f8ce70b1959d2977ccc996">FULL3WIRE</a> = 3,
&#160;&#160;<a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5af5bb99ad9d67ad2d85f840e3abcfe068">FUNCTION</a> = 0
, <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5ac3523e4cf6763ba518d16fec3708ef23">DRIVER</a> = 1
, <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5a62a305b52f749ff8c89138273fbb012d">FULL2WIRE</a> = 2
, <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5a0b8eea5cf0f8ce70b1959d2977ccc996">FULL3WIRE</a> = 3
, <br />
&#160;&#160;<a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5adedd394a375190a3df8d4519c0d4dc2f">FULL4WIRE</a> = 4
, <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5a00c2387a5af43d8e97639699ab7a5c7f">HALF3WIRE</a> = 6
, <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5aecc0900c55b777d2e885581b8c434b07">HALF4WIRE</a> = 8
<br />
&#160;&#160;<a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5adedd394a375190a3df8d4519c0d4dc2f">FULL4WIRE</a> = 4,
<a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5a00c2387a5af43d8e97639699ab7a5c7f">HALF3WIRE</a> = 6,
<a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5aecc0900c55b777d2e885581b8c434b07">HALF4WIRE</a> = 8
<br />
}<tr class="memdesc:a73bdecf1273d98d8c5fbcb764cabeea5"><td class="mdescLeft">&#160;</td><td class="mdescRight">Symbolic names for number of pins. Use this in the pins argument the <a class="el" href="classAccelStepper.html" title="Support for stepper motors with acceleration etc. ">AccelStepper</a> constructor to provide a symbolic name for the number of pins to use. <a href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5">More...</a><br /></td></tr>
</td></tr>
}</td></tr>
<tr class="memdesc:a73bdecf1273d98d8c5fbcb764cabeea5"><td class="mdescLeft">&#160;</td><td class="mdescRight">Symbolic names for number of pins. Use this in the pins argument the <a class="el" href="classAccelStepper.html" title="Support for stepper motors with acceleration etc.">AccelStepper</a> constructor to provide a symbolic name for the number of pins to use. <a href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5">More...</a><br /></td></tr>
<tr class="separator:a73bdecf1273d98d8c5fbcb764cabeea5"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
@ -88,8 +89,10 @@ Public Member Functions</h2></td></tr>
<tr class="separator:abee8d466229b87accba33d6ec929c18f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6123a1dfb4495d8bd2646288eae60d7f"><td class="memItemLeft" align="right" valign="top">float&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAccelStepper.html#a6123a1dfb4495d8bd2646288eae60d7f">maxSpeed</a> ()</td></tr>
<tr class="separator:a6123a1dfb4495d8bd2646288eae60d7f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:adfb19e3cd2a028a1fe78131787604fd1"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAccelStepper.html#adfb19e3cd2a028a1fe78131787604fd1">setAcceleration</a> (float acceleration)</td></tr>
<tr class="memitem:adfb19e3cd2a028a1fe78131787604fd1"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAccelStepper.html#adfb19e3cd2a028a1fe78131787604fd1">setAcceleration</a> (float <a class="el" href="classAccelStepper.html#a8b76f1ae6a49d2c2887b9fea30b8d84f">acceleration</a>)</td></tr>
<tr class="separator:adfb19e3cd2a028a1fe78131787604fd1"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a8b76f1ae6a49d2c2887b9fea30b8d84f"><td class="memItemLeft" align="right" valign="top">float&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAccelStepper.html#a8b76f1ae6a49d2c2887b9fea30b8d84f">acceleration</a> ()</td></tr>
<tr class="separator:a8b76f1ae6a49d2c2887b9fea30b8d84f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ae79c49ad69d5ccc9da0ee691fa4ca235"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAccelStepper.html#ae79c49ad69d5ccc9da0ee691fa4ca235">setSpeed</a> (float <a class="el" href="classAccelStepper.html#a4f0989d0ae264e7eadfe1fa720769fb6">speed</a>)</td></tr>
<tr class="separator:ae79c49ad69d5ccc9da0ee691fa4ca235"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a4f0989d0ae264e7eadfe1fa720769fb6"><td class="memItemLeft" align="right" valign="top">float&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAccelStepper.html#a4f0989d0ae264e7eadfe1fa720769fb6">speed</a> ()</td></tr>
@ -124,23 +127,31 @@ Public Member Functions</h2></td></tr>
<tr class="separator:a38298ac2dd852fb22259f6c4bbe08c94"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a3a60cc0b962f8ceb81ee1e6f36443ceb"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAccelStepper.html#a3a60cc0b962f8ceb81ee1e6f36443ceb">isRunning</a> ()</td></tr>
<tr class="separator:a3a60cc0b962f8ceb81ee1e6f36443ceb"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a89c4c8de0c983e7a59de6a959481aff1"><td class="memItemLeft" align="right" valign="top"><a id="a89c4c8de0c983e7a59de6a959481aff1"></a>
virtual&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAccelStepper.html#a89c4c8de0c983e7a59de6a959481aff1">~AccelStepper</a> ()</td></tr>
<tr class="memdesc:a89c4c8de0c983e7a59de6a959481aff1"><td class="mdescLeft">&#160;</td><td class="mdescRight">Virtual destructor to prevent warnings during delete. <br /></td></tr>
<tr class="separator:a89c4c8de0c983e7a59de6a959481aff1"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pro-types"></a>
Protected Types</h2></td></tr>
<tr class="memitem:a7468f91a925c689c3ba250f8d074d228"><td class="memItemLeft" align="right" valign="top">enum &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAccelStepper.html#a7468f91a925c689c3ba250f8d074d228">Direction</a> { <a class="el" href="classAccelStepper.html#a7468f91a925c689c3ba250f8d074d228a6959a4549f734bd771d418f995ba4fb4">DIRECTION_CCW</a> = 0,
<a class="el" href="classAccelStepper.html#a7468f91a925c689c3ba250f8d074d228ad604e0047f7cb47662c5a1cf6999337c">DIRECTION_CW</a> = 1
}<tr class="memdesc:a7468f91a925c689c3ba250f8d074d228"><td class="mdescLeft">&#160;</td><td class="mdescRight">Direction indicator Symbolic names for the direction the motor is turning. <a href="classAccelStepper.html#a7468f91a925c689c3ba250f8d074d228">More...</a><br /></td></tr>
</td></tr>
<tr class="memitem:a7468f91a925c689c3ba250f8d074d228"><td class="memItemLeft" align="right" valign="top">enum &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAccelStepper.html#a7468f91a925c689c3ba250f8d074d228">Direction</a> { <a class="el" href="classAccelStepper.html#a7468f91a925c689c3ba250f8d074d228a6959a4549f734bd771d418f995ba4fb4">DIRECTION_CCW</a> = 0
, <a class="el" href="classAccelStepper.html#a7468f91a925c689c3ba250f8d074d228ad604e0047f7cb47662c5a1cf6999337c">DIRECTION_CW</a> = 1
}</td></tr>
<tr class="memdesc:a7468f91a925c689c3ba250f8d074d228"><td class="mdescLeft">&#160;</td><td class="mdescRight">Direction indicator Symbolic names for the direction the motor is turning. <a href="classAccelStepper.html#a7468f91a925c689c3ba250f8d074d228">More...</a><br /></td></tr>
<tr class="separator:a7468f91a925c689c3ba250f8d074d228"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pro-methods"></a>
Protected Member Functions</h2></td></tr>
<tr class="memitem:affbee789b5c19165846cf0409860ae79"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAccelStepper.html#affbee789b5c19165846cf0409860ae79">computeNewSpeed</a> ()</td></tr>
<tr class="separator:affbee789b5c19165846cf0409860ae79"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aab5944f43f869675958939c421bd9a01"><td class="memItemLeft" align="right" valign="top">virtual unsigned long&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAccelStepper.html#aab5944f43f869675958939c421bd9a01">computeNewSpeed</a> ()</td></tr>
<tr class="separator:aab5944f43f869675958939c421bd9a01"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af3c2516b6ce7c1ecbc2004107bb2a9ce"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAccelStepper.html#af3c2516b6ce7c1ecbc2004107bb2a9ce">setOutputPins</a> (uint8_t mask)</td></tr>
<tr class="separator:af3c2516b6ce7c1ecbc2004107bb2a9ce"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a8a419121702399d8ac66df4cc47481f4"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAccelStepper.html#a8a419121702399d8ac66df4cc47481f4">step</a> (long step)</td></tr>
<tr class="separator:a8a419121702399d8ac66df4cc47481f4"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af4908b53e1821f0a6d2dab509257b3e6"><td class="memItemLeft" align="right" valign="top">long&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAccelStepper.html#af4908b53e1821f0a6d2dab509257b3e6">stepForward</a> ()</td></tr>
<tr class="separator:af4908b53e1821f0a6d2dab509257b3e6"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af8abc9ede47286fa33b518e0bf297c6a"><td class="memItemLeft" align="right" valign="top">long&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAccelStepper.html#af8abc9ede47286fa33b518e0bf297c6a">stepBackward</a> ()</td></tr>
<tr class="separator:af8abc9ede47286fa33b518e0bf297c6a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aa2913db789e6fa05756579ff82fe6e7e"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAccelStepper.html#aa2913db789e6fa05756579ff82fe6e7e">step0</a> (long <a class="el" href="classAccelStepper.html#a8a419121702399d8ac66df4cc47481f4">step</a>)</td></tr>
<tr class="separator:aa2913db789e6fa05756579ff82fe6e7e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a63ef416bc039da539294e84a41e7d7dc"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAccelStepper.html#a63ef416bc039da539294e84a41e7d7dc">step1</a> (long <a class="el" href="classAccelStepper.html#a8a419121702399d8ac66df4cc47481f4">step</a>)</td></tr>
@ -160,13 +171,15 @@ Protected Member Functions</h2></td></tr>
Protected Attributes</h2></td></tr>
<tr class="memitem:a35162cdf8ed9a98f98984c177d5ade58"><td class="memItemLeft" align="right" valign="top">boolean&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAccelStepper.html#a35162cdf8ed9a98f98984c177d5ade58">_direction</a></td></tr>
<tr class="separator:a35162cdf8ed9a98f98984c177d5ade58"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a744fa74c2e181e75509a34b17c02e984"><td class="memItemLeft" align="right" valign="top">unsigned long&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAccelStepper.html#a744fa74c2e181e75509a34b17c02e984">_stepInterval</a></td></tr>
<tr class="separator:a744fa74c2e181e75509a34b17c02e984"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Support for stepper motors with acceleration etc. </p>
<p>This defines a single 2 or 4 pin stepper motor, or stepper moter with fdriver chip, with optional acceleration, deceleration, absolute positioning commands etc. Multiple simultaneous steppers are supported, all moving at different speeds and accelerations.</p>
<dl class="section user"><dt>Operation</dt><dd>This module operates by computing a step time in microseconds. The step time is recomputed after each step and after speed and acceleration parameters are changed by the caller. The time of each step is recorded in microseconds. The <a class="el" href="classAccelStepper.html#a608b2395b64ac15451d16d0371fe13ce">run()</a> function steps the motor once if a new step is due. The <a class="el" href="classAccelStepper.html#a608b2395b64ac15451d16d0371fe13ce">run()</a> function must be called frequently until the motor is in the desired position, after which time <a class="el" href="classAccelStepper.html#a608b2395b64ac15451d16d0371fe13ce">run()</a> will do nothing.</dd></dl>
<dl class="section user"><dt>Positioning</dt><dd>Positions are specified by a signed long integer. At construction time, the current position of the motor is consider to be 0. Positive positions are clockwise from the initial position; negative positions are anticlockwise. The current position can be altered for instance after initialization positioning.</dd></dl>
<dl class="section user"><dt>Caveats</dt><dd>This is an open loop controller: If the motor stalls or is oversped, <a class="el" href="classAccelStepper.html" title="Support for stepper motors with acceleration etc. ">AccelStepper</a> will not have a correct idea of where the motor really is (since there is no feedback of the motor's real position. We only know where we <em>think</em> it is, relative to the initial starting point).</dd></dl>
<dl class="section user"><dt>Caveats</dt><dd>This is an open loop controller: If the motor stalls or is oversped, <a class="el" href="classAccelStepper.html" title="Support for stepper motors with acceleration etc.">AccelStepper</a> will not have a correct idea of where the motor really is (since there is no feedback of the motor's real position. We only know where we <em>think</em> it is, relative to the initial starting point).</dd></dl>
<dl class="section user"><dt>Performance</dt><dd>The fastest motor speed that can be reliably supported is about 4000 steps per second at a clock frequency of 16 MHz on Arduino such as Uno etc. Faster processors can support faster stepping speeds. However, any speed less than that down to very slow speeds (much less than one per second) are also supported, provided the <a class="el" href="classAccelStepper.html#a608b2395b64ac15451d16d0371fe13ce">run()</a> function is called frequently enough to step the motor whenever required for the speed set. Calling <a class="el" href="classAccelStepper.html#adfb19e3cd2a028a1fe78131787604fd1">setAcceleration()</a> is expensive, since it requires a square root to be calculated.</dd></dl>
<p>Gregor Christandl reports that with an Arduino Due and a simple test program, he measured 43163 steps per second using <a class="el" href="classAccelStepper.html#aa4a6bdf99f698284faaeb5542b0b7514">runSpeed()</a>, and 16214 steps per second using <a class="el" href="classAccelStepper.html#a608b2395b64ac15451d16d0371fe13ce">run()</a>; </p>
</div><h2 class="groupheader">Member Enumeration Documentation</h2>
@ -212,7 +225,7 @@ Protected Attributes</h2></td></tr>
</table>
</div><div class="memdoc">
<p>Symbolic names for number of pins. Use this in the pins argument the <a class="el" href="classAccelStepper.html" title="Support for stepper motors with acceleration etc. ">AccelStepper</a> constructor to provide a symbolic name for the number of pins to use. </p>
<p>Symbolic names for number of pins. Use this in the pins argument the <a class="el" href="classAccelStepper.html" title="Support for stepper motors with acceleration etc.">AccelStepper</a> constructor to provide a symbolic name for the number of pins to use. </p>
<table class="fieldtable">
<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="a73bdecf1273d98d8c5fbcb764cabeea5af5bb99ad9d67ad2d85f840e3abcfe068"></a>FUNCTION&#160;</td><td class="fielddoc"><p>Use the functional interface, implementing your own driver functions (internal use only) </p>
</td></tr>
@ -284,9 +297,9 @@ Protected Attributes</h2></td></tr>
</div><div class="memdoc">
<p>Constructor. You can have multiple simultaneous steppers, all moving at different speeds and accelerations, provided you call their <a class="el" href="classAccelStepper.html#a608b2395b64ac15451d16d0371fe13ce">run()</a> functions at frequent enough intervals. Current Position is set to 0, target position is set to 0. MaxSpeed and Acceleration default to 1.0. The motor pins will be initialised to OUTPUT mode during the constructor by a call to <a class="el" href="classAccelStepper.html#aa279a50d30d0413f570c692cff071643">enableOutputs()</a>. </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">interface</td><td>Number of pins to interface to. Integer values are supported, but it is preferred to use the <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5">MotorInterfaceType</a> symbolic names. <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5ac3523e4cf6763ba518d16fec3708ef23" title="Stepper Driver, 2 driver pins required. ">AccelStepper::DRIVER</a> (1) means a stepper driver (with Step and Direction pins). If an enable line is also needed, call <a class="el" href="classAccelStepper.html#a56a81c5f00d02ca19646718e88e974c0">setEnablePin()</a> after construction. You may also invert the pins using <a class="el" href="classAccelStepper.html#ac62cae590c2f9c303519a3a1c4adc8ab">setPinsInverted()</a>. Caution: DRIVER implements a blocking delay of minPulseWidth microseconds (default 1us) for each step. You can change this with <a class="el" href="classAccelStepper.html#af4d3818e691dad5dc518308796ccf154">setMinPulseWidth()</a>. <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5a62a305b52f749ff8c89138273fbb012d" title="2 wire stepper, 2 motor pins required ">AccelStepper::FULL2WIRE</a> (2) means a 2 wire stepper (2 pins required). <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5a0b8eea5cf0f8ce70b1959d2977ccc996" title="3 wire stepper, such as HDD spindle, 3 motor pins required ">AccelStepper::FULL3WIRE</a> (3) means a 3 wire stepper, such as HDD spindle (3 pins required). <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5adedd394a375190a3df8d4519c0d4dc2f" title="4 wire full stepper, 4 motor pins required ">AccelStepper::FULL4WIRE</a> (4) means a 4 wire stepper (4 pins required). <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5a00c2387a5af43d8e97639699ab7a5c7f" title="3 wire half stepper, such as HDD spindle, 3 motor pins required ">AccelStepper::HALF3WIRE</a> (6) means a 3 wire half stepper, such as HDD spindle (3 pins required) <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5aecc0900c55b777d2e885581b8c434b07" title="4 wire half stepper, 4 motor pins required ">AccelStepper::HALF4WIRE</a> (8) means a 4 wire half stepper (4 pins required) Defaults to <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5adedd394a375190a3df8d4519c0d4dc2f" title="4 wire full stepper, 4 motor pins required ">AccelStepper::FULL4WIRE</a> (4) pins. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pin1</td><td>Arduino digital pin number for motor pin 1. Defaults to pin 2. For a <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5ac3523e4cf6763ba518d16fec3708ef23" title="Stepper Driver, 2 driver pins required. ">AccelStepper::DRIVER</a> (interface==1), this is the Step input to the driver. Low to high transition means to step) </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pin2</td><td>Arduino digital pin number for motor pin 2. Defaults to pin 3. For a <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5ac3523e4cf6763ba518d16fec3708ef23" title="Stepper Driver, 2 driver pins required. ">AccelStepper::DRIVER</a> (interface==1), this is the Direction input the driver. High means forward. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">interface</td><td>Number of pins to interface to. Integer values are supported, but it is preferred to use the <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5">MotorInterfaceType</a> symbolic names. <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5ac3523e4cf6763ba518d16fec3708ef23" title="Stepper Driver, 2 driver pins required.">AccelStepper::DRIVER</a> (1) means a stepper driver (with Step and Direction pins). If an enable line is also needed, call <a class="el" href="classAccelStepper.html#a56a81c5f00d02ca19646718e88e974c0">setEnablePin()</a> after construction. You may also invert the pins using <a class="el" href="classAccelStepper.html#ac62cae590c2f9c303519a3a1c4adc8ab">setPinsInverted()</a>. Caution: DRIVER implements a blocking delay of minPulseWidth microseconds (default 1us) for each step. You can change this with <a class="el" href="classAccelStepper.html#af4d3818e691dad5dc518308796ccf154">setMinPulseWidth()</a>. <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5a62a305b52f749ff8c89138273fbb012d" title="2 wire stepper, 2 motor pins required">AccelStepper::FULL2WIRE</a> (2) means a 2 wire stepper (2 pins required). <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5a0b8eea5cf0f8ce70b1959d2977ccc996" title="3 wire stepper, such as HDD spindle, 3 motor pins required">AccelStepper::FULL3WIRE</a> (3) means a 3 wire stepper, such as HDD spindle (3 pins required). <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5adedd394a375190a3df8d4519c0d4dc2f" title="4 wire full stepper, 4 motor pins required">AccelStepper::FULL4WIRE</a> (4) means a 4 wire stepper (4 pins required). <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5a00c2387a5af43d8e97639699ab7a5c7f" title="3 wire half stepper, such as HDD spindle, 3 motor pins required">AccelStepper::HALF3WIRE</a> (6) means a 3 wire half stepper, such as HDD spindle (3 pins required) <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5aecc0900c55b777d2e885581b8c434b07" title="4 wire half stepper, 4 motor pins required">AccelStepper::HALF4WIRE</a> (8) means a 4 wire half stepper (4 pins required) Defaults to <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5adedd394a375190a3df8d4519c0d4dc2f" title="4 wire full stepper, 4 motor pins required">AccelStepper::FULL4WIRE</a> (4) pins. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pin1</td><td>Arduino digital pin number for motor pin 1. Defaults to pin 2. For a <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5ac3523e4cf6763ba518d16fec3708ef23" title="Stepper Driver, 2 driver pins required.">AccelStepper::DRIVER</a> (interface==1), this is the Step input to the driver. Low to high transition means to step) </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pin2</td><td>Arduino digital pin number for motor pin 2. Defaults to pin 3. For a <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5ac3523e4cf6763ba518d16fec3708ef23" title="Stepper Driver, 2 driver pins required.">AccelStepper::DRIVER</a> (interface==1), this is the Direction input the driver. High means forward. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pin3</td><td>Arduino digital pin number for motor pin 3. Defaults to pin 4. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pin4</td><td>Arduino digital pin number for motor pin 4. Defaults to pin 5. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">enable</td><td>If this is true (the default), <a class="el" href="classAccelStepper.html#aa279a50d30d0413f570c692cff071643">enableOutputs()</a> will be called to enable the output pins at construction time. </td></tr>
@ -294,7 +307,7 @@ Protected Attributes</h2></td></tr>
</dd>
</dl>
<p class="reference">References <a class="el" href="classAccelStepper.html#a35162cdf8ed9a98f98984c177d5ade58">_direction</a>, <a class="el" href="classAccelStepper.html#a7468f91a925c689c3ba250f8d074d228a6959a4549f734bd771d418f995ba4fb4">DIRECTION_CCW</a>, <a class="el" href="classAccelStepper.html#aa279a50d30d0413f570c692cff071643">enableOutputs()</a>, and <a class="el" href="classAccelStepper.html#adfb19e3cd2a028a1fe78131787604fd1">setAcceleration()</a>.</p>
<p class="reference">References <a class="el" href="classAccelStepper.html#a35162cdf8ed9a98f98984c177d5ade58">_direction</a>, <a class="el" href="classAccelStepper.html#a744fa74c2e181e75509a34b17c02e984">_stepInterval</a>, <a class="el" href="classAccelStepper.html#a7468f91a925c689c3ba250f8d074d228a6959a4549f734bd771d418f995ba4fb4">DIRECTION_CCW</a>, <a class="el" href="classAccelStepper.html#aa279a50d30d0413f570c692cff071643">enableOutputs()</a>, <a class="el" href="classAccelStepper.html#adfb19e3cd2a028a1fe78131787604fd1">setAcceleration()</a>, and <a class="el" href="classAccelStepper.html#abee8d466229b87accba33d6ec929c18f">setMaxSpeed()</a>.</p>
</div>
</div>
@ -331,13 +344,33 @@ Protected Attributes</h2></td></tr>
</dd>
</dl>
<p class="reference">References <a class="el" href="classAccelStepper.html#a35162cdf8ed9a98f98984c177d5ade58">_direction</a>, <a class="el" href="classAccelStepper.html#a7468f91a925c689c3ba250f8d074d228a6959a4549f734bd771d418f995ba4fb4">DIRECTION_CCW</a>, and <a class="el" href="classAccelStepper.html#adfb19e3cd2a028a1fe78131787604fd1">setAcceleration()</a>.</p>
<p class="reference">References <a class="el" href="classAccelStepper.html#a35162cdf8ed9a98f98984c177d5ade58">_direction</a>, <a class="el" href="classAccelStepper.html#a744fa74c2e181e75509a34b17c02e984">_stepInterval</a>, <a class="el" href="classAccelStepper.html#a7468f91a925c689c3ba250f8d074d228a6959a4549f734bd771d418f995ba4fb4">DIRECTION_CCW</a>, <a class="el" href="classAccelStepper.html#adfb19e3cd2a028a1fe78131787604fd1">setAcceleration()</a>, and <a class="el" href="classAccelStepper.html#abee8d466229b87accba33d6ec929c18f">setMaxSpeed()</a>.</p>
</div>
</div>
<h2 class="groupheader">Member Function Documentation</h2>
<a id="affbee789b5c19165846cf0409860ae79"></a>
<h2 class="memtitle"><span class="permalink"><a href="#affbee789b5c19165846cf0409860ae79">&#9670;&nbsp;</a></span>computeNewSpeed()</h2>
<a id="a8b76f1ae6a49d2c2887b9fea30b8d84f"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a8b76f1ae6a49d2c2887b9fea30b8d84f">&#9670;&nbsp;</a></span>acceleration()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">float AccelStepper::acceleration </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Returns the acceleration/deceleration rate configured for this stepper that was previously set by <a class="el" href="classAccelStepper.html#adfb19e3cd2a028a1fe78131787604fd1">setAcceleration()</a>; </p><dl class="section return"><dt>Returns</dt><dd>The currently configured acceleration/deceleration </dd></dl>
<p class="reference">Referenced by <a class="el" href="classAccelStepper.html#adfb19e3cd2a028a1fe78131787604fd1">setAcceleration()</a>.</p>
</div>
</div>
<a id="aab5944f43f869675958939c421bd9a01"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aab5944f43f869675958939c421bd9a01">&#9670;&nbsp;</a></span>computeNewSpeed()</h2>
<div class="memitem">
<div class="memproto">
@ -346,7 +379,7 @@ Protected Attributes</h2></td></tr>
<td class="mlabels-left">
<table class="memname">
<tr>
<td class="memname">void AccelStepper::computeNewSpeed </td>
<td class="memname">unsigned long AccelStepper::computeNewSpeed </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
@ -354,7 +387,7 @@ Protected Attributes</h2></td></tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">protected</span></span> </td>
<span class="mlabels"><span class="mlabel">protected</span><span class="mlabel">virtual</span></span> </td>
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</div><div class="memdoc">
@ -362,10 +395,11 @@ Protected Attributes</h2></td></tr>
<li>after each step </li>
<li>after change to maxSpeed through <a class="el" href="classAccelStepper.html#abee8d466229b87accba33d6ec929c18f">setMaxSpeed()</a> </li>
<li>after change to acceleration through <a class="el" href="classAccelStepper.html#adfb19e3cd2a028a1fe78131787604fd1">setAcceleration()</a> </li>
<li>after change to target position (relative or absolute) through <a class="el" href="classAccelStepper.html#a68942c66e78fb7f7b5f0cdade6eb7f06">move()</a> or <a class="el" href="classAccelStepper.html#ace236ede35f87c63d18da25810ec9736">moveTo()</a> </li>
<li>after change to target position (relative or absolute) through <a class="el" href="classAccelStepper.html#a68942c66e78fb7f7b5f0cdade6eb7f06">move()</a> or <a class="el" href="classAccelStepper.html#ace236ede35f87c63d18da25810ec9736">moveTo()</a> <dl class="section return"><dt>Returns</dt><dd>the new step interval </dd></dl>
</li>
</ul>
<p class="reference">References <a class="el" href="classAccelStepper.html#a35162cdf8ed9a98f98984c177d5ade58">_direction</a>, <a class="el" href="classAccelStepper.html#a7468f91a925c689c3ba250f8d074d228a6959a4549f734bd771d418f995ba4fb4">DIRECTION_CCW</a>, <a class="el" href="classAccelStepper.html#a7468f91a925c689c3ba250f8d074d228ad604e0047f7cb47662c5a1cf6999337c">DIRECTION_CW</a>, and <a class="el" href="classAccelStepper.html#a748665c3962e66fbc0e9373eb14c69c1">distanceToGo()</a>.</p>
<p class="reference">References <a class="el" href="classAccelStepper.html#a35162cdf8ed9a98f98984c177d5ade58">_direction</a>, <a class="el" href="classAccelStepper.html#a744fa74c2e181e75509a34b17c02e984">_stepInterval</a>, <a class="el" href="classAccelStepper.html#a7468f91a925c689c3ba250f8d074d228a6959a4549f734bd771d418f995ba4fb4">DIRECTION_CCW</a>, <a class="el" href="classAccelStepper.html#a7468f91a925c689c3ba250f8d074d228ad604e0047f7cb47662c5a1cf6999337c">DIRECTION_CW</a>, and <a class="el" href="classAccelStepper.html#a748665c3962e66fbc0e9373eb14c69c1">distanceToGo()</a>.</p>
<p class="reference">Referenced by <a class="el" href="classAccelStepper.html#ace236ede35f87c63d18da25810ec9736">moveTo()</a>, <a class="el" href="classAccelStepper.html#a608b2395b64ac15451d16d0371fe13ce">run()</a>, <a class="el" href="classAccelStepper.html#adfb19e3cd2a028a1fe78131787604fd1">setAcceleration()</a>, and <a class="el" href="classAccelStepper.html#abee8d466229b87accba33d6ec929c18f">setMaxSpeed()</a>.</p>
@ -435,7 +469,7 @@ Protected Attributes</h2></td></tr>
</div><div class="memdoc">
<p>The distance from the current position to the target position. </p><dl class="section return"><dt>Returns</dt><dd>the distance from the current position to the target position in steps. Positive is clockwise from the current position. </dd></dl>
<p class="reference">Referenced by <a class="el" href="classAccelStepper.html#affbee789b5c19165846cf0409860ae79">computeNewSpeed()</a>, and <a class="el" href="classAccelStepper.html#a608b2395b64ac15451d16d0371fe13ce">run()</a>.</p>
<p class="reference">Referenced by <a class="el" href="classAccelStepper.html#aab5944f43f869675958939c421bd9a01">computeNewSpeed()</a>, and <a class="el" href="classAccelStepper.html#a608b2395b64ac15451d16d0371fe13ce">run()</a>.</p>
</div>
</div>
@ -557,7 +591,7 @@ Protected Attributes</h2></td></tr>
</dd>
</dl>
<p class="reference">References <a class="el" href="classAccelStepper.html#affbee789b5c19165846cf0409860ae79">computeNewSpeed()</a>.</p>
<p class="reference">References <a class="el" href="classAccelStepper.html#aab5944f43f869675958939c421bd9a01">computeNewSpeed()</a>.</p>
<p class="reference">Referenced by <a class="el" href="classAccelStepper.html#a68942c66e78fb7f7b5f0cdade6eb7f06">move()</a>, <a class="el" href="classMultiStepper.html#a291fec32a79390b6eb00296cffac49ee">MultiStepper::moveTo()</a>, and <a class="el" href="classAccelStepper.html#a176c5d2e4c2f21e9e92b12e39a6f0e67">runToNewPosition()</a>.</p>
@ -579,7 +613,7 @@ Protected Attributes</h2></td></tr>
</div><div class="memdoc">
<p>Poll the motor and step it if a step is due, implementing accelerations and decelerations to achieve the target position. You must call this as frequently as possible, but at least once per minimum step time interval, preferably in your main loop. Note that each call to <a class="el" href="classAccelStepper.html#a608b2395b64ac15451d16d0371fe13ce">run()</a> will make at most one step, and then only when a step is due, based on the current speed and the time since the last step. </p><dl class="section return"><dt>Returns</dt><dd>true if the motor is still running to the target position. </dd></dl>
<p class="reference">References <a class="el" href="classAccelStepper.html#affbee789b5c19165846cf0409860ae79">computeNewSpeed()</a>, <a class="el" href="classAccelStepper.html#a748665c3962e66fbc0e9373eb14c69c1">distanceToGo()</a>, and <a class="el" href="classAccelStepper.html#aa4a6bdf99f698284faaeb5542b0b7514">runSpeed()</a>.</p>
<p class="reference">References <a class="el" href="classAccelStepper.html#aab5944f43f869675958939c421bd9a01">computeNewSpeed()</a>, <a class="el" href="classAccelStepper.html#a748665c3962e66fbc0e9373eb14c69c1">distanceToGo()</a>, and <a class="el" href="classAccelStepper.html#aa4a6bdf99f698284faaeb5542b0b7514">runSpeed()</a>.</p>
<p class="reference">Referenced by <a class="el" href="classAccelStepper.html#a344f58fef8cc34ac5aa75ba4b665d21c">runToPosition()</a>.</p>
@ -601,9 +635,9 @@ Protected Attributes</h2></td></tr>
</div><div class="memdoc">
<p>Poll the motor and step it if a step is due, implementing a constant speed as set by the most recent call to <a class="el" href="classAccelStepper.html#ae79c49ad69d5ccc9da0ee691fa4ca235">setSpeed()</a>. You must call this as frequently as possible, but at least once per step interval, </p><dl class="section return"><dt>Returns</dt><dd>true if the motor was stepped. </dd></dl>
<p class="reference">References <a class="el" href="classAccelStepper.html#a35162cdf8ed9a98f98984c177d5ade58">_direction</a>, <a class="el" href="classAccelStepper.html#a7468f91a925c689c3ba250f8d074d228ad604e0047f7cb47662c5a1cf6999337c">DIRECTION_CW</a>, and <a class="el" href="classAccelStepper.html#a8a419121702399d8ac66df4cc47481f4">step()</a>.</p>
<p class="reference">References <a class="el" href="classAccelStepper.html#a35162cdf8ed9a98f98984c177d5ade58">_direction</a>, <a class="el" href="classAccelStepper.html#a744fa74c2e181e75509a34b17c02e984">_stepInterval</a>, <a class="el" href="classAccelStepper.html#a7468f91a925c689c3ba250f8d074d228ad604e0047f7cb47662c5a1cf6999337c">DIRECTION_CW</a>, and <a class="el" href="classAccelStepper.html#a8a419121702399d8ac66df4cc47481f4">step()</a>.</p>
<p class="reference">Referenced by <a class="el" href="classMultiStepper.html#a26c2f53b1e7ddf5d5dfb333f6fb7fb92">MultiStepper::run()</a>, <a class="el" href="classAccelStepper.html#a608b2395b64ac15451d16d0371fe13ce">run()</a>, and <a class="el" href="classAccelStepper.html#a9270d20336e76ac1fd5bcd5b9c34f301">runSpeedToPosition()</a>.</p>
<p class="reference">Referenced by <a class="el" href="classAccelStepper.html#a608b2395b64ac15451d16d0371fe13ce">run()</a>, <a class="el" href="classMultiStepper.html#a26c2f53b1e7ddf5d5dfb333f6fb7fb92">MultiStepper::run()</a>, and <a class="el" href="classAccelStepper.html#a9270d20336e76ac1fd5bcd5b9c34f301">runSpeedToPosition()</a>.</p>
</div>
</div>
@ -621,7 +655,7 @@ Protected Attributes</h2></td></tr>
</tr>
</table>
</div><div class="memdoc">
<p>Runs at the currently selected speed until the target position is reached. Does not implement accelerations. </p><dl class="section return"><dt>Returns</dt><dd>true if it stepped </dd></dl>
<p>Executes <a class="el" href="classAccelStepper.html#aa4a6bdf99f698284faaeb5542b0b7514">runSpeed()</a> unless the targetPosition is reached. This function needs to be called often just like <a class="el" href="classAccelStepper.html#aa4a6bdf99f698284faaeb5542b0b7514">runSpeed()</a> or <a class="el" href="classAccelStepper.html#a608b2395b64ac15451d16d0371fe13ce">run()</a>. Will step the motor if a step is required at the currently selected speed unless the target position has been reached. Does not implement accelerations. </p><dl class="section return"><dt>Returns</dt><dd>true if it stepped </dd></dl>
<p class="reference">References <a class="el" href="classAccelStepper.html#a35162cdf8ed9a98f98984c177d5ade58">_direction</a>, <a class="el" href="classAccelStepper.html#a7468f91a925c689c3ba250f8d074d228a6959a4549f734bd771d418f995ba4fb4">DIRECTION_CCW</a>, <a class="el" href="classAccelStepper.html#a7468f91a925c689c3ba250f8d074d228ad604e0047f7cb47662c5a1cf6999337c">DIRECTION_CW</a>, and <a class="el" href="classAccelStepper.html#aa4a6bdf99f698284faaeb5542b0b7514">runSpeed()</a>.</p>
@ -697,7 +731,7 @@ Protected Attributes</h2></td></tr>
</dd>
</dl>
<p class="reference">References <a class="el" href="classAccelStepper.html#affbee789b5c19165846cf0409860ae79">computeNewSpeed()</a>.</p>
<p class="reference">References <a class="el" href="classAccelStepper.html#a8b76f1ae6a49d2c2887b9fea30b8d84f">acceleration()</a>, and <a class="el" href="classAccelStepper.html#aab5944f43f869675958939c421bd9a01">computeNewSpeed()</a>.</p>
<p class="reference">Referenced by <a class="el" href="classAccelStepper.html#a3bc75bd6571b98a6177838ca81ac39ab">AccelStepper()</a>.</p>
@ -725,6 +759,8 @@ Protected Attributes</h2></td></tr>
</dd>
</dl>
<p class="reference">References <a class="el" href="classAccelStepper.html#a744fa74c2e181e75509a34b17c02e984">_stepInterval</a>.</p>
<p class="reference">Referenced by <a class="el" href="classMultiStepper.html#a26c2f53b1e7ddf5d5dfb333f6fb7fb92">MultiStepper::run()</a>.</p>
</div>
@ -776,7 +812,9 @@ Protected Attributes</h2></td></tr>
</dd>
</dl>
<p class="reference">References <a class="el" href="classAccelStepper.html#affbee789b5c19165846cf0409860ae79">computeNewSpeed()</a>, and <a class="el" href="classAccelStepper.html#a4f0989d0ae264e7eadfe1fa720769fb6">speed()</a>.</p>
<p class="reference">References <a class="el" href="classAccelStepper.html#aab5944f43f869675958939c421bd9a01">computeNewSpeed()</a>, and <a class="el" href="classAccelStepper.html#a4f0989d0ae264e7eadfe1fa720769fb6">speed()</a>.</p>
<p class="reference">Referenced by <a class="el" href="classAccelStepper.html#a3bc75bd6571b98a6177838ca81ac39ab">AccelStepper()</a>.</p>
</div>
</div>
@ -797,7 +835,8 @@ Protected Attributes</h2></td></tr>
</div><div class="memdoc">
<p>Sets the minimum pulse width allowed by the stepper driver. The minimum practical pulse width is approximately 20 microseconds. Times less than 20 microseconds will usually result in 20 microseconds or so. </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">minWidth</td><td>The minimum pulse width in microseconds. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">minWidth</td><td>The minimum pulse width in microseconds. <br />
</td></tr>
</table>
</dd>
</dl>
@ -955,7 +994,7 @@ Protected Attributes</h2></td></tr>
</dd>
</dl>
<p class="reference">References <a class="el" href="classAccelStepper.html#a35162cdf8ed9a98f98984c177d5ade58">_direction</a>, <a class="el" href="classAccelStepper.html#a7468f91a925c689c3ba250f8d074d228a6959a4549f734bd771d418f995ba4fb4">DIRECTION_CCW</a>, <a class="el" href="classAccelStepper.html#a7468f91a925c689c3ba250f8d074d228ad604e0047f7cb47662c5a1cf6999337c">DIRECTION_CW</a>, and <a class="el" href="classAccelStepper.html#a4f0989d0ae264e7eadfe1fa720769fb6">speed()</a>.</p>
<p class="reference">References <a class="el" href="classAccelStepper.html#a35162cdf8ed9a98f98984c177d5ade58">_direction</a>, <a class="el" href="classAccelStepper.html#a744fa74c2e181e75509a34b17c02e984">_stepInterval</a>, <a class="el" href="classAccelStepper.html#a7468f91a925c689c3ba250f8d074d228a6959a4549f734bd771d418f995ba4fb4">DIRECTION_CCW</a>, <a class="el" href="classAccelStepper.html#a7468f91a925c689c3ba250f8d074d228ad604e0047f7cb47662c5a1cf6999337c">DIRECTION_CW</a>, and <a class="el" href="classAccelStepper.html#a4f0989d0ae264e7eadfe1fa720769fb6">speed()</a>.</p>
<p class="reference">Referenced by <a class="el" href="classMultiStepper.html#a291fec32a79390b6eb00296cffac49ee">MultiStepper::moveTo()</a>.</p>
@ -1013,7 +1052,7 @@ Protected Attributes</h2></td></tr>
<p class="reference">References <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5ac3523e4cf6763ba518d16fec3708ef23">DRIVER</a>, <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5a62a305b52f749ff8c89138273fbb012d">FULL2WIRE</a>, <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5a0b8eea5cf0f8ce70b1959d2977ccc996">FULL3WIRE</a>, <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5adedd394a375190a3df8d4519c0d4dc2f">FULL4WIRE</a>, <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5af5bb99ad9d67ad2d85f840e3abcfe068">FUNCTION</a>, <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5a00c2387a5af43d8e97639699ab7a5c7f">HALF3WIRE</a>, <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5aecc0900c55b777d2e885581b8c434b07">HALF4WIRE</a>, <a class="el" href="classAccelStepper.html#aa2913db789e6fa05756579ff82fe6e7e">step0()</a>, <a class="el" href="classAccelStepper.html#a63ef416bc039da539294e84a41e7d7dc">step1()</a>, <a class="el" href="classAccelStepper.html#a674e48a6bf99e7ad1f013c1e4414565a">step2()</a>, <a class="el" href="classAccelStepper.html#ad73c61aade2e10243dfb02aefa7ab8fd">step3()</a>, <a class="el" href="classAccelStepper.html#a8910bd9218a54dfb7e2372a6d0bcca0c">step4()</a>, <a class="el" href="classAccelStepper.html#a4b0faf1ebc0c584ab606c0c0f66986b0">step6()</a>, and <a class="el" href="classAccelStepper.html#aa909c6c3fcd3ea4b3ee1aa8b4d0f7e87">step8()</a>.</p>
<p class="reference">Referenced by <a class="el" href="classAccelStepper.html#aa4a6bdf99f698284faaeb5542b0b7514">runSpeed()</a>.</p>
<p class="reference">Referenced by <a class="el" href="classAccelStepper.html#aa4a6bdf99f698284faaeb5542b0b7514">runSpeed()</a>, <a class="el" href="classAccelStepper.html#aa2913db789e6fa05756579ff82fe6e7e">step0()</a>, <a class="el" href="classAccelStepper.html#a63ef416bc039da539294e84a41e7d7dc">step1()</a>, <a class="el" href="classAccelStepper.html#a674e48a6bf99e7ad1f013c1e4414565a">step2()</a>, <a class="el" href="classAccelStepper.html#ad73c61aade2e10243dfb02aefa7ab8fd">step3()</a>, <a class="el" href="classAccelStepper.html#a8910bd9218a54dfb7e2372a6d0bcca0c">step4()</a>, <a class="el" href="classAccelStepper.html#a4b0faf1ebc0c584ab606c0c0f66986b0">step6()</a>, <a class="el" href="classAccelStepper.html#aa909c6c3fcd3ea4b3ee1aa8b4d0f7e87">step8()</a>, <a class="el" href="classAccelStepper.html#af8abc9ede47286fa33b518e0bf297c6a">stepBackward()</a>, and <a class="el" href="classAccelStepper.html#af4908b53e1821f0a6d2dab509257b3e6">stepForward()</a>.</p>
</div>
</div>
@ -1047,6 +1086,8 @@ Protected Attributes</h2></td></tr>
</dd>
</dl>
<p class="reference">References <a class="el" href="classAccelStepper.html#a8a419121702399d8ac66df4cc47481f4">step()</a>.</p>
<p class="reference">Referenced by <a class="el" href="classAccelStepper.html#a8a419121702399d8ac66df4cc47481f4">step()</a>.</p>
</div>
@ -1081,7 +1122,7 @@ Protected Attributes</h2></td></tr>
</dd>
</dl>
<p class="reference">References <a class="el" href="classAccelStepper.html#a35162cdf8ed9a98f98984c177d5ade58">_direction</a>, and <a class="el" href="classAccelStepper.html#af3c2516b6ce7c1ecbc2004107bb2a9ce">setOutputPins()</a>.</p>
<p class="reference">References <a class="el" href="classAccelStepper.html#a35162cdf8ed9a98f98984c177d5ade58">_direction</a>, <a class="el" href="classAccelStepper.html#af3c2516b6ce7c1ecbc2004107bb2a9ce">setOutputPins()</a>, and <a class="el" href="classAccelStepper.html#a8a419121702399d8ac66df4cc47481f4">step()</a>.</p>
<p class="reference">Referenced by <a class="el" href="classAccelStepper.html#a8a419121702399d8ac66df4cc47481f4">step()</a>.</p>
@ -1117,7 +1158,7 @@ Protected Attributes</h2></td></tr>
</dd>
</dl>
<p class="reference">References <a class="el" href="classAccelStepper.html#af3c2516b6ce7c1ecbc2004107bb2a9ce">setOutputPins()</a>.</p>
<p class="reference">References <a class="el" href="classAccelStepper.html#af3c2516b6ce7c1ecbc2004107bb2a9ce">setOutputPins()</a>, and <a class="el" href="classAccelStepper.html#a8a419121702399d8ac66df4cc47481f4">step()</a>.</p>
<p class="reference">Referenced by <a class="el" href="classAccelStepper.html#a8a419121702399d8ac66df4cc47481f4">step()</a>.</p>
@ -1153,7 +1194,7 @@ Protected Attributes</h2></td></tr>
</dd>
</dl>
<p class="reference">References <a class="el" href="classAccelStepper.html#af3c2516b6ce7c1ecbc2004107bb2a9ce">setOutputPins()</a>.</p>
<p class="reference">References <a class="el" href="classAccelStepper.html#af3c2516b6ce7c1ecbc2004107bb2a9ce">setOutputPins()</a>, and <a class="el" href="classAccelStepper.html#a8a419121702399d8ac66df4cc47481f4">step()</a>.</p>
<p class="reference">Referenced by <a class="el" href="classAccelStepper.html#a8a419121702399d8ac66df4cc47481f4">step()</a>.</p>
@ -1189,7 +1230,7 @@ Protected Attributes</h2></td></tr>
</dd>
</dl>
<p class="reference">References <a class="el" href="classAccelStepper.html#af3c2516b6ce7c1ecbc2004107bb2a9ce">setOutputPins()</a>.</p>
<p class="reference">References <a class="el" href="classAccelStepper.html#af3c2516b6ce7c1ecbc2004107bb2a9ce">setOutputPins()</a>, and <a class="el" href="classAccelStepper.html#a8a419121702399d8ac66df4cc47481f4">step()</a>.</p>
<p class="reference">Referenced by <a class="el" href="classAccelStepper.html#a8a419121702399d8ac66df4cc47481f4">step()</a>.</p>
@ -1225,7 +1266,7 @@ Protected Attributes</h2></td></tr>
</dd>
</dl>
<p class="reference">References <a class="el" href="classAccelStepper.html#af3c2516b6ce7c1ecbc2004107bb2a9ce">setOutputPins()</a>.</p>
<p class="reference">References <a class="el" href="classAccelStepper.html#af3c2516b6ce7c1ecbc2004107bb2a9ce">setOutputPins()</a>, and <a class="el" href="classAccelStepper.html#a8a419121702399d8ac66df4cc47481f4">step()</a>.</p>
<p class="reference">Referenced by <a class="el" href="classAccelStepper.html#a8a419121702399d8ac66df4cc47481f4">step()</a>.</p>
@ -1254,17 +1295,73 @@ Protected Attributes</h2></td></tr>
</tr>
</table>
</div><div class="memdoc">
<p>Called to execute a step on a 4 pin half-steper motor. Only called when a new step is required. Subclasses may override to implement new stepping interfaces. The default sets or clears the outputs of pin1, pin2, pin3, pin4. </p><dl class="params"><dt>Parameters</dt><dd>
<p>Called to execute a step on a 4 pin half-stepper motor. Only called when a new step is required. Subclasses may override to implement new stepping interfaces. The default sets or clears the outputs of pin1, pin2, pin3, pin4. </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">step</td><td>The current step phase number (0 to 7) </td></tr>
</table>
</dd>
</dl>
<p class="reference">References <a class="el" href="classAccelStepper.html#af3c2516b6ce7c1ecbc2004107bb2a9ce">setOutputPins()</a>.</p>
<p class="reference">References <a class="el" href="classAccelStepper.html#af3c2516b6ce7c1ecbc2004107bb2a9ce">setOutputPins()</a>, and <a class="el" href="classAccelStepper.html#a8a419121702399d8ac66df4cc47481f4">step()</a>.</p>
<p class="reference">Referenced by <a class="el" href="classAccelStepper.html#a8a419121702399d8ac66df4cc47481f4">step()</a>.</p>
</div>
</div>
<a id="af8abc9ede47286fa33b518e0bf297c6a"></a>
<h2 class="memtitle"><span class="permalink"><a href="#af8abc9ede47286fa33b518e0bf297c6a">&#9670;&nbsp;</a></span>stepBackward()</h2>
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<div class="memproto">
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<tr>
<td class="mlabels-left">
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<td class="memname">long AccelStepper::stepBackward </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">protected</span></span> </td>
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<p>Called to execute a counter-clockwise(-) step. Only called when a new step is required. This decrements the _currentPos and calls <a class="el" href="classAccelStepper.html#a8a419121702399d8ac66df4cc47481f4">step()</a> </p><dl class="section return"><dt>Returns</dt><dd>the updated current position </dd></dl>
<p class="reference">References <a class="el" href="classAccelStepper.html#a8a419121702399d8ac66df4cc47481f4">step()</a>.</p>
</div>
</div>
<a id="af4908b53e1821f0a6d2dab509257b3e6"></a>
<h2 class="memtitle"><span class="permalink"><a href="#af4908b53e1821f0a6d2dab509257b3e6">&#9670;&nbsp;</a></span>stepForward()</h2>
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<tr>
<td class="mlabels-left">
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<td class="memname">long AccelStepper::stepForward </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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</td>
<td class="mlabels-right">
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<p>Called to execute a clockwise(+) step. Only called when a new step is required. This increments the _currentPos and calls <a class="el" href="classAccelStepper.html#a8a419121702399d8ac66df4cc47481f4">step()</a> </p><dl class="section return"><dt>Returns</dt><dd>the updated current position </dd></dl>
<p class="reference">References <a class="el" href="classAccelStepper.html#a8a419121702399d8ac66df4cc47481f4">step()</a>.</p>
</div>
</div>
<a id="a638817b85aed9d5cd15c76a76c00aced"></a>
@ -1327,7 +1424,32 @@ Protected Attributes</h2></td></tr>
</div><div class="memdoc">
<p>Current direction motor is spinning in Protected because some peoples subclasses need it to be so </p>
<p class="reference">Referenced by <a class="el" href="classAccelStepper.html#a3bc75bd6571b98a6177838ca81ac39ab">AccelStepper()</a>, <a class="el" href="classAccelStepper.html#affbee789b5c19165846cf0409860ae79">computeNewSpeed()</a>, <a class="el" href="classAccelStepper.html#aa4a6bdf99f698284faaeb5542b0b7514">runSpeed()</a>, <a class="el" href="classAccelStepper.html#a9270d20336e76ac1fd5bcd5b9c34f301">runSpeedToPosition()</a>, <a class="el" href="classAccelStepper.html#ae79c49ad69d5ccc9da0ee691fa4ca235">setSpeed()</a>, and <a class="el" href="classAccelStepper.html#a63ef416bc039da539294e84a41e7d7dc">step1()</a>.</p>
<p class="reference">Referenced by <a class="el" href="classAccelStepper.html#a3bc75bd6571b98a6177838ca81ac39ab">AccelStepper()</a>, <a class="el" href="classAccelStepper.html#aab5944f43f869675958939c421bd9a01">computeNewSpeed()</a>, <a class="el" href="classAccelStepper.html#aa4a6bdf99f698284faaeb5542b0b7514">runSpeed()</a>, <a class="el" href="classAccelStepper.html#a9270d20336e76ac1fd5bcd5b9c34f301">runSpeedToPosition()</a>, <a class="el" href="classAccelStepper.html#ae79c49ad69d5ccc9da0ee691fa4ca235">setSpeed()</a>, and <a class="el" href="classAccelStepper.html#a63ef416bc039da539294e84a41e7d7dc">step1()</a>.</p>
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<a id="a744fa74c2e181e75509a34b17c02e984"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a744fa74c2e181e75509a34b17c02e984">&#9670;&nbsp;</a></span>_stepInterval</h2>
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<div class="memproto">
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<td class="memname">unsigned long AccelStepper::_stepInterval</td>
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<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">protected</span></span> </td>
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<p>The current interval between steps in microseconds. 0 means the motor is currently stopped with _speed == 0 </p>
<p class="reference">Referenced by <a class="el" href="classAccelStepper.html#a3bc75bd6571b98a6177838ca81ac39ab">AccelStepper()</a>, <a class="el" href="classAccelStepper.html#aab5944f43f869675958939c421bd9a01">computeNewSpeed()</a>, <a class="el" href="classAccelStepper.html#aa4a6bdf99f698284faaeb5542b0b7514">runSpeed()</a>, <a class="el" href="classAccelStepper.html#a9d917f014317fb9d3b5dc14e66f6c689">setCurrentPosition()</a>, and <a class="el" href="classAccelStepper.html#ae79c49ad69d5ccc9da0ee691fa4ca235">setSpeed()</a>.</p>
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<div class="textblock">Here is a list of all documented class members with links to the class documentation for each member:</div>
<h3><a id="index__"></a>- _ -</h3><ul>
<h3><a id="index__5F"></a>- _ -</h3><ul>
<li>_direction
: <a class="el" href="classAccelStepper.html#a35162cdf8ed9a98f98984c177d5ade58">AccelStepper</a>
</li>
<li>_stepInterval
: <a class="el" href="classAccelStepper.html#a744fa74c2e181e75509a34b17c02e984">AccelStepper</a>
</li>
</ul>
<h3><a id="index_a"></a>- a -</h3><ul>
<li>acceleration()
: <a class="el" href="classAccelStepper.html#a8b76f1ae6a49d2c2887b9fea30b8d84f">AccelStepper</a>
</li>
<li>AccelStepper()
: <a class="el" href="classAccelStepper.html#a3bc75bd6571b98a6177838ca81ac39ab">AccelStepper</a>
</li>
@ -58,7 +65,7 @@ $(function() {
<h3><a id="index_c"></a>- c -</h3><ul>
<li>computeNewSpeed()
: <a class="el" href="classAccelStepper.html#affbee789b5c19165846cf0409860ae79">AccelStepper</a>
: <a class="el" href="classAccelStepper.html#aab5944f43f869675958939c421bd9a01">AccelStepper</a>
</li>
<li>currentPosition()
: <a class="el" href="classAccelStepper.html#a5dce13ab2a1b02b8f443318886bf6fc5">AccelStepper</a>
@ -221,6 +228,12 @@ $(function() {
<li>step8()
: <a class="el" href="classAccelStepper.html#aa909c6c3fcd3ea4b3ee1aa8b4d0f7e87">AccelStepper</a>
</li>
<li>stepBackward()
: <a class="el" href="classAccelStepper.html#af8abc9ede47286fa33b518e0bf297c6a">AccelStepper</a>
</li>
<li>stepForward()
: <a class="el" href="classAccelStepper.html#af4908b53e1821f0a6d2dab509257b3e6">AccelStepper</a>
</li>
<li>stop()
: <a class="el" href="classAccelStepper.html#a638817b85aed9d5cd15c76a76c00aced">AccelStepper</a>
</li>
@ -232,12 +245,17 @@ $(function() {
: <a class="el" href="classAccelStepper.html#a96685e0945b7cf75d5959da679cd911e">AccelStepper</a>
</li>
</ul>
<h3><a id="index__7E"></a>- ~ -</h3><ul>
<li>~AccelStepper()
: <a class="el" href="classAccelStepper.html#a89c4c8de0c983e7a59de6a959481aff1">AccelStepper</a>
</li>
</ul>
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@ -26,20 +26,24 @@
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&#160;
<h3><a id="index_a"></a>- a -</h3><ul>
<li>acceleration()
: <a class="el" href="classAccelStepper.html#a8b76f1ae6a49d2c2887b9fea30b8d84f">AccelStepper</a>
</li>
<li>AccelStepper()
: <a class="el" href="classAccelStepper.html#a3bc75bd6571b98a6177838ca81ac39ab">AccelStepper</a>
</li>
@ -51,7 +55,7 @@ $(function() {
<h3><a id="index_c"></a>- c -</h3><ul>
<li>computeNewSpeed()
: <a class="el" href="classAccelStepper.html#affbee789b5c19165846cf0409860ae79">AccelStepper</a>
: <a class="el" href="classAccelStepper.html#aab5944f43f869675958939c421bd9a01">AccelStepper</a>
</li>
<li>currentPosition()
: <a class="el" href="classAccelStepper.html#a5dce13ab2a1b02b8f443318886bf6fc5">AccelStepper</a>
@ -141,7 +145,7 @@ $(function() {
: <a class="el" href="classAccelStepper.html#af3c2516b6ce7c1ecbc2004107bb2a9ce">AccelStepper</a>
</li>
<li>setPinsInverted()
: <a class="el" href="classAccelStepper.html#a38298ac2dd852fb22259f6c4bbe08c94">AccelStepper</a>
: <a class="el" href="classAccelStepper.html#ac62cae590c2f9c303519a3a1c4adc8ab">AccelStepper</a>
</li>
<li>setSpeed()
: <a class="el" href="classAccelStepper.html#ae79c49ad69d5ccc9da0ee691fa4ca235">AccelStepper</a>
@ -173,6 +177,12 @@ $(function() {
<li>step8()
: <a class="el" href="classAccelStepper.html#aa909c6c3fcd3ea4b3ee1aa8b4d0f7e87">AccelStepper</a>
</li>
<li>stepBackward()
: <a class="el" href="classAccelStepper.html#af8abc9ede47286fa33b518e0bf297c6a">AccelStepper</a>
</li>
<li>stepForward()
: <a class="el" href="classAccelStepper.html#af4908b53e1821f0a6d2dab509257b3e6">AccelStepper</a>
</li>
<li>stop()
: <a class="el" href="classAccelStepper.html#a638817b85aed9d5cd15c76a76c00aced">AccelStepper</a>
</li>
@ -184,12 +194,17 @@ $(function() {
: <a class="el" href="classAccelStepper.html#a96685e0945b7cf75d5959da679cd911e">AccelStepper</a>
</li>
</ul>
<h3><a id="index__7E"></a>- ~ -</h3><ul>
<li>~AccelStepper()
: <a class="el" href="classAccelStepper.html#a89c4c8de0c983e7a59de6a959481aff1">AccelStepper</a>
</li>
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<div class="title"><a class="el" href="classAccelStepper.html" title="Support for stepper motors with acceleration etc. ">AccelStepper</a> library for Arduino </div> </div>
<div class="title"><a class="el" href="classAccelStepper.html" title="Support for stepper motors with acceleration etc.">AccelStepper</a> library for Arduino </div> </div>
</div><!--header-->
<div class="contents">
<div class="textblock"><p>This is the Arduino <a class="el" href="classAccelStepper.html" title="Support for stepper motors with acceleration etc. ">AccelStepper</a> library. It provides an object-oriented interface for 2, 3 or 4 pin stepper motors and motor drivers.</p>
<div class="textblock"><p>This is the Arduino <a class="el" href="classAccelStepper.html" title="Support for stepper motors with acceleration etc.">AccelStepper</a> library. It provides an object-oriented interface for 2, 3 or 4 pin stepper motors and motor drivers.</p>
<p>The standard Arduino IDE includes the Stepper library (<a href="http://arduino.cc/en/Reference/Stepper">http://arduino.cc/en/Reference/Stepper</a>) for stepper motors. It is perfectly adequate for simple, single motor applications.</p>
<p><a class="el" href="classAccelStepper.html" title="Support for stepper motors with acceleration etc. ">AccelStepper</a> significantly improves on the standard Arduino Stepper library in several ways: </p><ul>
<p><a class="el" href="classAccelStepper.html" title="Support for stepper motors with acceleration etc.">AccelStepper</a> significantly improves on the standard Arduino Stepper library in several ways: </p><ul>
<li>Supports acceleration and deceleration </li>
<li>Supports multiple simultaneous steppers, with independent concurrent stepping on each stepper </li>
<li>Most API functions never delay() or block (unless otherwise stated) </li>
@ -54,27 +55,31 @@ $(function() {
<li>Extensive API </li>
<li>Subclass support</li>
</ul>
<p>The latest version of this documentation can be downloaded from <a href="http://www.airspayce.com/mikem/arduino/AccelStepper">http://www.airspayce.com/mikem/arduino/AccelStepper</a> The version of the package that this documentation refers to can be downloaded from <a href="http://www.airspayce.com/mikem/arduino/AccelStepper/AccelStepper-1.61.zip">http://www.airspayce.com/mikem/arduino/AccelStepper/AccelStepper-1.61.zip</a></p>
<p>The latest version of this documentation can be downloaded from <a href="http://www.airspayce.com/mikem/arduino/AccelStepper">http://www.airspayce.com/mikem/arduino/AccelStepper</a> The version of the package that this documentation refers to can be downloaded from <a href="http://www.airspayce.com/mikem/arduino/AccelStepper/AccelStepper-1.64.zip">http://www.airspayce.com/mikem/arduino/AccelStepper/AccelStepper-1.64.zip</a></p>
<p>Example Arduino programs are included to show the main modes of use.</p>
<p>You can also find online help and discussion at <a href="http://groups.google.com/group/accelstepper">http://groups.google.com/group/accelstepper</a> Please use that group for all questions and discussions on this topic. Do not contact the author directly, unless it is to discuss commercial licensing. Before asking a question or reporting a bug, please read</p><ul>
<li><a href="http://en.wikipedia.org/wiki/Wikipedia:Reference_desk/How_to_ask_a_software_question">http://en.wikipedia.org/wiki/Wikipedia:Reference_desk/How_to_ask_a_software_question</a></li>
<li><a href="http://www.catb.org/esr/faqs/smart-questions.html">http://www.catb.org/esr/faqs/smart-questions.html</a></li>
<li><a href="http://www.chiark.greenend.org.uk/~shgtatham/bugs.html">http://www.chiark.greenend.org.uk/~shgtatham/bugs.html</a></li>
</ul>
<p>Beginners to C++ and stepper motors in general may find this helpful:</p><ul>
<li><a href="https://hackaday.io/project/183279-accelstepper-the-missing-manual">https://hackaday.io/project/183279-accelstepper-the-missing-manual</a></li>
<li><a href="https://hackaday.io/project/183713-using-the-arduino-accelstepper-library">https://hackaday.io/project/183713-using-the-arduino-accelstepper-library</a></li>
</ul>
<p>Tested on Arduino Diecimila and Mega with arduino-0018 &amp; arduino-0021 on OpenSuSE 11.1 and avr-libc-1.6.1-1.15, cross-avr-binutils-2.19-9.1, cross-avr-gcc-4.1.3_20080612-26.5. Tested on Teensy <a href="http://www.pjrc.com/teensy">http://www.pjrc.com/teensy</a> including Teensy 3.1 built using Arduino IDE 1.0.5 with teensyduino addon 1.18 and later.</p>
<dl class="section user"><dt>Installation</dt><dd></dd></dl>
<p>Install in the usual way: unzip the distribution zip file to the libraries sub-folder of your sketchbook.</p>
<dl class="section user"><dt>Theory</dt><dd></dd></dl>
<p>This code uses speed calculations as described in "Generate stepper-motor speed profiles in real time" by David Austin <a href="http://fab.cba.mit.edu/classes/MIT/961.09/projects/i0/Stepper_Motor_Speed_Profile.pdf">http://fab.cba.mit.edu/classes/MIT/961.09/projects/i0/Stepper_Motor_Speed_Profile.pdf</a> or <a href="http://www.embedded.com/design/mcus-processors-and-socs/4006438/Generate-stepper-motor-speed-profiles-in-real-time">http://www.embedded.com/design/mcus-processors-and-socs/4006438/Generate-stepper-motor-speed-profiles-in-real-time</a> or <a href="http://web.archive.org/web/20140705143928/http://fab.cba.mit.edu/classes/MIT/961.09/projects/i0/Stepper_Motor_Speed_Profile.pdf">http://web.archive.org/web/20140705143928/http://fab.cba.mit.edu/classes/MIT/961.09/projects/i0/Stepper_Motor_Speed_Profile.pdf</a> with the exception that <a class="el" href="classAccelStepper.html" title="Support for stepper motors with acceleration etc. ">AccelStepper</a> uses steps per second rather than radians per second (because we dont know the step angle of the motor) An initial step interval is calculated for the first step, based on the desired acceleration On subsequent steps, shorter step intervals are calculated based on the previous step until max speed is achieved.</p>
<p>This code uses speed calculations as described in "Generate stepper-motor speed profiles in real time" by David Austin <a href="http://fab.cba.mit.edu/classes/MIT/961.09/projects/i0/Stepper_Motor_Speed_Profile.pdf">http://fab.cba.mit.edu/classes/MIT/961.09/projects/i0/Stepper_Motor_Speed_Profile.pdf</a> or <a href="http://www.embedded.com/design/mcus-processors-and-socs/4006438/Generate-stepper-motor-speed-profiles-in-real-time">http://www.embedded.com/design/mcus-processors-and-socs/4006438/Generate-stepper-motor-speed-profiles-in-real-time</a> or <a href="http://web.archive.org/web/20140705143928/http://fab.cba.mit.edu/classes/MIT/961.09/projects/i0/Stepper_Motor_Speed_Profile.pdf">http://web.archive.org/web/20140705143928/http://fab.cba.mit.edu/classes/MIT/961.09/projects/i0/Stepper_Motor_Speed_Profile.pdf</a> with the exception that <a class="el" href="classAccelStepper.html" title="Support for stepper motors with acceleration etc.">AccelStepper</a> uses steps per second rather than radians per second (because we dont know the step angle of the motor) An initial step interval is calculated for the first step, based on the desired acceleration On subsequent steps, shorter step intervals are calculated based on the previous step until max speed is achieved.</p>
<dl class="section user"><dt>Adafruit Motor Shield V2</dt><dd></dd></dl>
<p>The included examples AFMotor_* are for Adafruit Motor Shield V1 and do not work with Adafruit Motor Shield V2. See <a href="https://github.com/adafruit/Adafruit_Motor_Shield_V2_Library">https://github.com/adafruit/Adafruit_Motor_Shield_V2_Library</a> for examples that work with Adafruit Motor Shield V2.</p>
<dl class="section user"><dt>Donations</dt><dd></dd></dl>
<p>This library is offered under a free GPL license for those who want to use it that way. We try hard to keep it up to date, fix bugs and to provide free support. If this library has helped you save time or money, please consider donating at <a href="http://www.airspayce.com">http://www.airspayce.com</a> or here:</p>
<p> <form action="https://www.paypal.com/cgi-bin/webscr" method="post"><input type="hidden" name="cmd" value="_donations" /> <input type="hidden" name="business" value="mikem@airspayce.com" /> <input type="hidden" name="lc" value="AU" /> <input type="hidden" name="item_name" value="Airspayce" /> <input type="hidden" name="item_number" value="AccelStepper" /> <input type="hidden" name="currency_code" value="USD" /> <input type="hidden" name="bn" value="PP-DonationsBF:btn_donateCC_LG.gif:NonHosted" /> <input type="image" alt="PayPal — The safer, easier way to pay online." name="submit" src="https://www.paypalobjects.com/en_AU/i/btn/btn_donateCC_LG.gif" /> <img alt="" src="https://www.paypalobjects.com/en_AU/i/scr/pixel.gif" width="1" height="1" border="0" /></form> </p>
<dl class="section user"><dt>Trademarks</dt><dd></dd></dl>
<p><a class="el" href="classAccelStepper.html" title="Support for stepper motors with acceleration etc. ">AccelStepper</a> is a trademark of AirSpayce Pty Ltd. The <a class="el" href="classAccelStepper.html" title="Support for stepper motors with acceleration etc. ">AccelStepper</a> mark was first used on April 26 2010 for international trade, and is used only in relation to motor control hardware and software. It is not to be confused with any other similar marks covering other goods and services.</p>
<p><a class="el" href="classAccelStepper.html" title="Support for stepper motors with acceleration etc.">AccelStepper</a> is a trademark of AirSpayce Pty Ltd. The <a class="el" href="classAccelStepper.html" title="Support for stepper motors with acceleration etc.">AccelStepper</a> mark was first used on April 26 2010 for international trade, and is used only in relation to motor control hardware and software. It is not to be confused with any other similar marks covering other goods and services.</p>
<dl class="section user"><dt>Copyright</dt><dd></dd></dl>
<p>This software is Copyright (C) 2010-2018 Mike McCauley. Use is subject to license conditions. The main licensing options available are GPL V3 or Commercial:</p>
<p>This software is Copyright (C) 2010-2021 Mike McCauley. Use is subject to license conditions. The main licensing options available are GPL V3 or Commercial:</p>
<dl class="section user"><dt>Open Source Licensing GPL V3</dt><dd>This is the appropriate option if you want to share the source code of your application with everyone you distribute it to, and you also want to give them the right to share who uses it. If you wish to use this software under Open Source Licensing, you must contribute all your source code to the open source community in accordance with the GPL Version 23 when your application is distributed. See <a href="https://www.gnu.org/licenses/gpl-3.0.html">https://www.gnu.org/licenses/gpl-3.0.html</a></dd></dl>
<dl class="section user"><dt>Commercial Licensing</dt><dd>This is the appropriate option if you are creating proprietary applications and you are not prepared to distribute and share the source code of your application. To purchase a commercial license, contact <a href="#" onclick="location.href='mai'+'lto:'+'inf'+'o@'+'air'+'sp'+'ayc'+'e.'+'com'; return false;">info@<span style="display: none;">.nosp@m.</span>airs<span style="display: none;">.nosp@m.</span>payce<span style="display: none;">.nosp@m.</span>.com</a></dd></dl>
<dl class="section user"><dt>Revision History</dt><dd></dd></dl>
@ -118,7 +123,7 @@ $(function() {
<dd>
1.19 Added MotorInterfaceType and symbolic names for the number of pins to use for the motor interface. Updated examples to suit. Replaced individual pin assignment variables _pin1, _pin2 etc with array _pin[4]. _pins member changed to _interface. Added _pinInverted array to simplify pin inversion operations. Added new function setOutputPins() which sets the motor output pins. It can be overridden in order to provide, say, serial output instead of parallel output Some refactoring and code size reduction. </dd>
<dd>
1.20 Improved documentation and examples to show need for correctly specifying <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5adedd394a375190a3df8d4519c0d4dc2f" title="4 wire full stepper, 4 motor pins required ">AccelStepper::FULL4WIRE</a> and friends. </dd>
1.20 Improved documentation and examples to show need for correctly specifying <a class="el" href="classAccelStepper.html#a73bdecf1273d98d8c5fbcb764cabeea5adedd394a375190a3df8d4519c0d4dc2f" title="4 wire full stepper, 4 motor pins required">AccelStepper::FULL4WIRE</a> and friends. </dd>
<dd>
1.21 Fixed a problem where desiredSpeed could compute the wrong step acceleration when _speed was small but non-zero. Reported by Brian Schmalz. Precompute sqrt_twoa to improve performance and max possible stepping speed </dd>
<dd>
@ -162,40 +167,40 @@ $(function() {
<dd>
1.41 Fixed an error in the acceleration calculations, resulting in acceleration of haldf the intended value </dd>
<dd>
1.42 Improved support for FULL3WIRE and HALF3WIRE output pins. These changes were in Yuri's original contribution but did not make it into production.<br />
1.42 Improved support for FULL3WIRE and HALF3WIRE output pins. These changes were in Yuri's original contribution but did not make it into production.<br />
</dd>
<dd>
1.43 Added DualMotorShield example. Shows how to use <a class="el" href="classAccelStepper.html" title="Support for stepper motors with acceleration etc. ">AccelStepper</a> to control 2 x 2 phase steppers using the Itead Studio Arduino Dual Stepper Motor Driver Shield model IM120417015.<br />
1.43 Added DualMotorShield example. Shows how to use <a class="el" href="classAccelStepper.html" title="Support for stepper motors with acceleration etc.">AccelStepper</a> to control 2 x 2 phase steppers using the Itead Studio Arduino Dual Stepper Motor Driver Shield model IM120417015.<br />
</dd>
<dd>
1.44 examples/DualMotorShield/DualMotorShield.ino examples/DualMotorShield/DualMotorShield.pde was missing from the distribution.<br />
1.44 examples/DualMotorShield/DualMotorShield.ino examples/DualMotorShield/DualMotorShield.pde was missing from the distribution.<br />
</dd>
<dd>
1.45 Fixed a problem where if setAcceleration was not called, there was no default acceleration. Reported by Michael Newman.<br />
1.45 Fixed a problem where if setAcceleration was not called, there was no default acceleration. Reported by Michael Newman.<br />
</dd>
<dd>
1.45 Fixed inaccuracy in acceleration rate by using Equation 15, suggested by Sebastian Gracki.<br />
Performance improvements in runSpeed suggested by Jaakko Fagerlund.<br />
1.45 Fixed inaccuracy in acceleration rate by using Equation 15, suggested by Sebastian Gracki.<br />
Performance improvements in runSpeed suggested by Jaakko Fagerlund.<br />
</dd>
<dd>
1.46 Fixed error in documentation for runToPosition(). Reinstated time calculations in runSpeed() since new version is reported not to work correctly under some circumstances. Reported by Oleg V Gavva.<br />
1.46 Fixed error in documentation for runToPosition(). Reinstated time calculations in runSpeed() since new version is reported not to work correctly under some circumstances. Reported by Oleg V Gavva.<br />
</dd>
<dd>
1.48 2015-08-25 Added new class <a class="el" href="classMultiStepper.html" title="Operate multiple AccelSteppers in a co-ordinated fashion. ">MultiStepper</a> that can manage multiple AccelSteppers, and cause them all to move to selected positions at such a (constant) speed that they all arrive at their target position at the same time. Suitable for X-Y flatbeds etc.<br />
Added new method maxSpeed() to <a class="el" href="classAccelStepper.html" title="Support for stepper motors with acceleration etc. ">AccelStepper</a> to return the currently configured maxSpeed.<br />
1.48 2015-08-25 Added new class <a class="el" href="classMultiStepper.html" title="Operate multiple AccelSteppers in a co-ordinated fashion.">MultiStepper</a> that can manage multiple AccelSteppers, and cause them all to move to selected positions at such a (constant) speed that they all arrive at their target position at the same time. Suitable for X-Y flatbeds etc.<br />
Added new method maxSpeed() to <a class="el" href="classAccelStepper.html" title="Support for stepper motors with acceleration etc.">AccelStepper</a> to return the currently configured maxSpeed.<br />
</dd>
<dd>
1.49 2016-01-02 Testing with VID28 series instrument stepper motors and EasyDriver. OK, although with light pointers and slow speeds like 180 full steps per second the motor movement can be erratic, probably due to some mechanical resonance. Best to accelerate through this speed.<br />
Added isRunning().<br />
1.49 2016-01-02 Testing with VID28 series instrument stepper motors and EasyDriver. OK, although with light pointers and slow speeds like 180 full steps per second the motor movement can be erratic, probably due to some mechanical resonance. Best to accelerate through this speed.<br />
Added isRunning().<br />
</dd>
<dd>
1.50 2016-02-25 <a class="el" href="classAccelStepper.html#a3591e29a236e2935afd7f64ff6c22006">AccelStepper::disableOutputs</a> now sets the enable pion to OUTPUT mode if the enable pin is defined. Patch from Piet De Jong.<br />
Added notes about the fact that AFMotor_* examples do not work with Adafruit Motor Shield V2.<br />
1.50 2016-02-25 <a class="el" href="classAccelStepper.html#a3591e29a236e2935afd7f64ff6c22006">AccelStepper::disableOutputs</a> now sets the enable pion to OUTPUT mode if the enable pin is defined. Patch from Piet De Jong.<br />
Added notes about the fact that AFMotor_* examples do not work with Adafruit Motor Shield V2.<br />
</dd>
<dd>
1.51 2016-03-24 Fixed a problem reported by gregor: when resetting the stepper motor position using setCurrentPosition() the stepper speed is reset by setting _stepInterval to 0, but _speed is not reset. this results in the stepper motor not starting again when calling setSpeed() with the same speed the stepper was set to before. </dd>
<dd>
1.52 2016-08-09 Added <a class="el" href="classMultiStepper.html" title="Operate multiple AccelSteppers in a co-ordinated fashion. ">MultiStepper</a> to keywords.txt. Improvements to efficiency of <a class="el" href="classAccelStepper.html#aa4a6bdf99f698284faaeb5542b0b7514">AccelStepper::runSpeed()</a> as suggested by David Grayson. Improvements to speed accuracy as suggested by David Grayson. </dd>
1.52 2016-08-09 Added <a class="el" href="classMultiStepper.html" title="Operate multiple AccelSteppers in a co-ordinated fashion.">MultiStepper</a> to keywords.txt. Improvements to efficiency of <a class="el" href="classAccelStepper.html#aa4a6bdf99f698284faaeb5542b0b7514">AccelStepper::runSpeed()</a> as suggested by David Grayson. Improvements to speed accuracy as suggested by David Grayson. </dd>
<dd>
1.53 2016-08-14 Backed out Improvements to speed accuracy from 1.52 as it did not work correctly. </dd>
<dd>
@ -213,14 +218,22 @@ $(function() {
<dd>
1.60 2020-03-07 Release under GPL V3 </dd>
<dd>
1.61 2020-04-20 Added yield() call in runToPosition(), so that platforms like esp8266 dont hang/crash during long runs.</dd></dl>
<dl class="section author"><dt>Author</dt><dd>Mike McCauley (<a href="#" onclick="location.href='mai'+'lto:'+'mik'+'em'+'@ai'+'rs'+'pay'+'ce'+'.co'+'m'; return false;">mikem<span style="display: none;">.nosp@m.</span>@air<span style="display: none;">.nosp@m.</span>spayc<span style="display: none;">.nosp@m.</span>e.co<span style="display: none;">.nosp@m.</span>m</a>) DO NOT CONTACT THE AUTHOR DIRECTLY: USE THE LISTS </dd></dl>
</div></div><!-- contents -->
1.61 2020-04-20 Added yield() call in runToPosition(), so that platforms like esp8266 dont hang/crash during long runs. </dd>
<dd>
1.62 2022-05-22 Added link to <a class="el" href="classAccelStepper.html" title="Support for stepper motors with acceleration etc.">AccelStepper</a> - The Missing Manual.<br />
Fixed a problem when setting the maxSpeed to 1.0 due to incomplete initialisation. Reported by Olivier Pécheux. <br />
</dd>
<dd>
1.63 2022-06-30 Added virtual destructor at the request of Jan.<br />
</dd>
<dd>
1.64 2022-10-31 Patch courtesy acwest: Changes to make <a class="el" href="classAccelStepper.html" title="Support for stepper motors with acceleration etc.">AccelStepper</a> more subclassable. These changes are largely oriented to implementing new step-scheduling algorithms.</dd></dl>
<dl class="section author"><dt>Author</dt><dd>Mike McCauley (<a href="#" onclick="location.href='mai'+'lto:'+'mik'+'em'+'@ai'+'rs'+'pay'+'ce'+'.co'+'m'; return false;">mikem<span style="display: none;">.nosp@m.</span>@air<span style="display: none;">.nosp@m.</span>spayc<span style="display: none;">.nosp@m.</span>e.co<span style="display: none;">.nosp@m.</span>m</a>) DO NOT CONTACT THE AUTHOR DIRECTLY: USE THE GOOGLE GROUP </dd></dl>
</div></div><!-- PageDoc -->
</div><!-- contents -->
<!-- start footer part -->
<hr class="footer"/><address class="footer"><small>
Generated by &#160;<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/>
</a> 1.8.13
Generated by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.1
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</html>

1
keywords.txt
View File

@ -35,6 +35,7 @@ setMinPulseWidth KEYWORD2
setEnablePin KEYWORD2
setPinsInverted KEYWORD2
maxSpeed KEYWORD2
isRunning KEYWORD2
#######################################
# Constants (LITERAL1)
#######################################

2
library.properties
View File

@ -1,5 +1,5 @@
name=AccelStepper
version=1.61
version=1.64
author=Mike McCauley <mikem@airspayce.com>
maintainer=Patrick Wasp <patrickwasp@gmail.com>
sentence=Allows Arduino boards to control a variety of stepper motors.

37
src/AccelStepper.cpp
View File

@ -1,6 +1,6 @@
// AccelStepper.cpp
//
// Copyright (C) 2009-2013 Mike McCauley
// Copyright (C) 2009-2020 Mike McCauley
// $Id: AccelStepper.cpp,v 1.24 2020/04/20 00:15:03 mikem Exp mikem $
#include "AccelStepper.h"
@ -94,7 +94,8 @@ void AccelStepper::setCurrentPosition(long position)
_speed = 0.0;
}
void AccelStepper::computeNewSpeed()
// Subclasses can override
unsigned long AccelStepper::computeNewSpeed()
{
long distanceTo = distanceToGo(); // +ve is clockwise from curent location
@ -106,7 +107,7 @@ void AccelStepper::computeNewSpeed()
_stepInterval = 0;
_speed = 0.0;
_n = 0;
return;
return _stepInterval;
}
if (distanceTo > 0)
@ -174,6 +175,7 @@ void AccelStepper::computeNewSpeed()
Serial.println(stepsToStop);
Serial.println("-----");
#endif
return _stepInterval;
}
// Run the motor to implement speed and acceleration in order to proceed to the target position
@ -193,7 +195,7 @@ AccelStepper::AccelStepper(uint8_t interface, uint8_t pin1, uint8_t pin2, uint8_
_currentPos = 0;
_targetPos = 0;
_speed = 0.0;
_maxSpeed = 1.0;
_maxSpeed = 0.0;
_acceleration = 0.0;
_sqrt_twoa = 1.0;
_stepInterval = 0;
@ -220,6 +222,7 @@ AccelStepper::AccelStepper(uint8_t interface, uint8_t pin1, uint8_t pin2, uint8_
enableOutputs();
// Some reasonable default
setAcceleration(1);
setMaxSpeed(1);
}
AccelStepper::AccelStepper(void (*forward)(), void (*backward)())
@ -228,7 +231,7 @@ AccelStepper::AccelStepper(void (*forward)(), void (*backward)())
_currentPos = 0;
_targetPos = 0;
_speed = 0.0;
_maxSpeed = 1.0;
_maxSpeed = 0.0;
_acceleration = 0.0;
_sqrt_twoa = 1.0;
_stepInterval = 0;
@ -254,6 +257,7 @@ AccelStepper::AccelStepper(void (*forward)(), void (*backward)())
_pinInverted[i] = 0;
// Some reasonable default
setAcceleration(1);
setMaxSpeed(1);
}
void AccelStepper::setMaxSpeed(float speed)
@ -295,6 +299,11 @@ void AccelStepper::setAcceleration(float acceleration)
}
}
float AccelStepper::acceleration()
{
return _acceleration;
}
void AccelStepper::setSpeed(float speed)
{
if (speed == _speed)
@ -350,6 +359,24 @@ void AccelStepper::step(long step)
}
}
long AccelStepper::stepForward()
{
// Clockwise
_currentPos += 1;
step(_currentPos);
_lastStepTime = micros();
return _currentPos;
}
long AccelStepper::stepBackward()
{
// Counter-clockwise
_currentPos -= 1;
step(_currentPos);
_lastStepTime = micros();
return _currentPos;
}
// You might want to override this to implement eg serial output
// bit 0 of the mask corresponds to _pin[0]
// bit 1 of the mask corresponds to _pin[1]

56
src/AccelStepper.h
View File

@ -23,7 +23,7 @@
/// The latest version of this documentation can be downloaded from
/// http://www.airspayce.com/mikem/arduino/AccelStepper
/// The version of the package that this documentation refers to can be downloaded
/// from http://www.airspayce.com/mikem/arduino/AccelStepper/AccelStepper-1.61.zip
/// from http://www.airspayce.com/mikem/arduino/AccelStepper/AccelStepper-1.64.zip
///
/// Example Arduino programs are included to show the main modes of use.
///
@ -35,6 +35,10 @@
/// - http://www.catb.org/esr/faqs/smart-questions.html
/// - http://www.chiark.greenend.org.uk/~shgtatham/bugs.html
///
/// Beginners to C++ and stepper motors in general may find this helpful:
/// - https://hackaday.io/project/183279-accelstepper-the-missing-manual
/// - https://hackaday.io/project/183713-using-the-arduino-accelstepper-library
///
/// Tested on Arduino Diecimila and Mega with arduino-0018 & arduino-0021
/// on OpenSuSE 11.1 and avr-libc-1.6.1-1.15,
/// cross-avr-binutils-2.19-9.1, cross-avr-gcc-4.1.3_20080612-26.5.
@ -81,7 +85,7 @@
///
/// \par Copyright
///
/// This software is Copyright (C) 2010-2018 Mike McCauley. Use is subject to license
/// This software is Copyright (C) 2010-2021 Mike McCauley. Use is subject to license
/// conditions. The main licensing options available are GPL V3 or Commercial:
///
/// \par Open Source Licensing GPL V3
@ -249,9 +253,18 @@
/// \version 1.61 2020-04-20
/// Added yield() call in runToPosition(), so that platforms like esp8266 dont hang/crash
/// during long runs.
/// \version 1.62 2022-05-22
/// Added link to AccelStepper - The Missing Manual.<br>
/// Fixed a problem when setting the maxSpeed to 1.0 due to incomplete initialisation.
/// Reported by Olivier Pécheux. <br>
/// \version 1.63 2022-06-30
/// Added virtual destructor at the request of Jan.<br>
/// \version 1.64 2022-10-31
/// Patch courtesy acwest: Changes to make AccelStepper more subclassable. These changes are
/// largely oriented to implementing new step-scheduling algorithms.
///
/// \author Mike McCauley (mikem@airspayce.com) DO NOT CONTACT THE AUTHOR DIRECTLY: USE THE LISTS
// Copyright (C) 2009-2013 Mike McCauley
/// \author Mike McCauley (mikem@airspayce.com) DO NOT CONTACT THE AUTHOR DIRECTLY: USE THE GOOGLE GROUP
// Copyright (C) 2009-2020 Mike McCauley
// $Id: AccelStepper.h,v 1.28 2020/04/20 00:15:03 mikem Exp mikem $
#ifndef AccelStepper_h
@ -429,6 +442,11 @@ public:
/// root to be calculated. Dont call more ofthen than needed
void setAcceleration(float acceleration);
/// Returns the acceleration/deceleration rate configured for this stepper
/// that was previously set by setAcceleration();
/// \return The currently configured acceleration/deceleration
float acceleration();
/// Sets the desired constant speed for use with runSpeed().
/// \param[in] speed The desired constant speed in steps per
/// second. Positive is clockwise. Speeds of more than 1000 steps per
@ -471,7 +489,10 @@ public:
/// position. Dont use this in event loops, since it blocks.
void runToPosition();
/// Runs at the currently selected speed until the target position is reached.
/// Executes runSpeed() unless the targetPosition is reached.
/// This function needs to be called often just like runSpeed() or run().
/// Will step the motor if a step is required at the currently selected
/// speed unless the target position has been reached.
/// Does not implement accelerations.
/// \return true if it stepped
boolean runSpeedToPosition();
@ -533,6 +554,8 @@ public:
/// \return true if the speed is not zero or not at the target position
bool isRunning();
/// Virtual destructor to prevent warnings during delete
virtual ~AccelStepper() {};
protected:
/// \brief Direction indicator
@ -551,7 +574,8 @@ protected:
/// \li after change to acceleration through setAcceleration()
/// \li after change to target position (relative or absolute) through
/// move() or moveTo()
void computeNewSpeed();
/// \return the new step interval
virtual unsigned long computeNewSpeed();
/// Low level function to set the motor output pins
/// bit 0 of the mask corresponds to _pin[0]
@ -566,6 +590,16 @@ protected:
/// number of pins defined for the stepper.
/// \param[in] step The current step phase number (0 to 7)
virtual void step(long step);
/// Called to execute a clockwise(+) step. Only called when a new step is
/// required. This increments the _currentPos and calls step()
/// \return the updated current position
long stepForward();
/// Called to execute a counter-clockwise(-) step. Only called when a new step is
/// required. This decrements the _currentPos and calls step()
/// \return the updated current position
long stepBackward();
/// Called to execute a step using stepper functions (pins = 0) Only called when a new step is
/// required. Calls _forward() or _backward() to perform the step
@ -607,7 +641,7 @@ protected:
/// \param[in] step The current step phase number (0 to 7)
virtual void step6(long step);
/// Called to execute a step on a 4 pin half-steper motor. Only called when a new step is
/// Called to execute a step on a 4 pin half-stepper motor. Only called when a new step is
/// required. Subclasses may override to implement new stepping
/// interfaces. The default sets or clears the outputs of pin1, pin2,
/// pin3, pin4.
@ -618,6 +652,10 @@ protected:
/// Protected because some peoples subclasses need it to be so
boolean _direction; // 1 == CW
/// The current interval between steps in microseconds.
/// 0 means the motor is currently stopped with _speed == 0
unsigned long _stepInterval;
private:
/// Number of pins on the stepper motor. Permits 2 or 4. 2 pins is a
/// bipolar, and 4 pins is a unipolar.
@ -650,10 +688,6 @@ private:
float _acceleration;
float _sqrt_twoa; // Precomputed sqrt(2*_acceleration)
/// The current interval between steps in microseconds.
/// 0 means the motor is currently stopped with _speed == 0
unsigned long _stepInterval;
/// The last step time in microseconds
unsigned long _lastStepTime;