I/O pins, Ports and Circuits - blogspot.com

Most I/O setup is done in the cpu_map.h file. Note: All I/O is 3.3V and the current capability is very low. Do not connect any I/O directly to relays, solenoids, etc. There are more features than available I/O pins, so you need to determine what features you want. Here are the pins you can use. Be