Initial support for RP2040

examples/arduino-external-libs/platformio.ini

@@ -0,0 +1,23 @@
+; PlatformIO Project Configuration File
+;
+;   Build options: build flags, source filter, extra scripting
+;   Upload options: custom port, speed and extra flags
+;   Library options: dependencies, extra library storages
+;
+; Please visit documentation for the other options and examples
+; http://docs.platformio.org/page/projectconf.html
+
+[env]
+platform = raspberrypi
+framework = arduino
+lib_deps =
+    SPI
+    adafruit/Adafruit 9DOF
+    arduino-libraries/Ethernet
+
+[env:pico]
+board = pico
+
+
+[env:nanorp2040connect]
+board = nanorp2040connect