Add sabertooth lib, start enabling all motor drive

lib/Sabertooth/examples/1.Basics/Jolty/Jolty.ino

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+// Jolty Sample for Packet Serial
+// Copyright (c) 2012 Dimension Engineering LLC
+// See license.txt for license details.
+
+#include <Sabertooth.h>
+
+Sabertooth ST(128); // The Sabertooth is on address 128. We'll name its object ST.
+                    // If you've set up your Sabertooth on a different address, of course change
+                    // that here. For how to configure address, etc. see the DIP Switch Wizard for
+                    //   Sabertooth - http://www.dimensionengineering.com/datasheets/SabertoothDIPWizard/start.htm
+                    //   SyRen      - http://www.dimensionengineering.com/datasheets/SyrenDIPWizard/start.htm
+                    // Be sure to select Packetized Serial Mode for use with this library.
+                    //
+                    // On that note, you can use this library for SyRen just as easily.
+                    // The diff-drive commands (drive, turn) do not work on a SyRen, of course, but it will respond correctly
+                    // if you command motor 1 to do something (ST.motor(1, ...)), just like a Sabertooth.
+                    //
+                    // In this sample, hardware serial TX connects to S1.
+                    // See the SoftwareSerial example in 3.Advanced for how to use other pins.
+                                        
+void setup()
+{
+  SabertoothTXPinSerial.begin(9600); // 9600 is the default baud rate for Sabertooth packet serial.
+  ST.autobaud(); // Send the autobaud command to the Sabertooth controller(s).
+                 // NOTE: *Not all* Sabertooth controllers need this command.
+                 //       It doesn't hurt anything, but V2 controllers use an
+                 //       EEPROM setting (changeable with the function setBaudRate) to set
+                 //       the baud rate instead of detecting with autobaud.
+                 //
+                 //       If you have a 2x12, 2x25 V2, 2x60 or SyRen 50, you can remove
+                 //       the autobaud line and save yourself two seconds of startup delay.
+}
+
+
+void loop()
+{
+  ST.motor(1, 127);  // Go forward at full power.
+  delay(2000);       // Wait 2 seconds.
+  ST.motor(1, 0);    // Stop.
+  delay(2000);       // Wait 2 seconds.
+  ST.motor(1, -127); // Reverse at full power.
+  delay(2000);       // Wait 2 seconds.
+  ST.motor(1, 0);    // Stop.
+  delay(2000);
+}
+