Arduino各型号主控板引脚说明

                                  Arduino Mega 2560 PIN mapping table

源文件下载参考：http://marcusjenkins.com/arduino-pinout-diagrams/

https://www.robot-italy.com/en/blog/progetti/450

https://commons.wikimedia.org/wiki/File:Pinout_of_ARDUINO_Board_and_ATMega328PU.svg?uselang=zh-cn#file

http://www.pighixxx.com/downloads/the-definitive-arduino-pinout-diagram/

http://arduino.nxez.com/pinout-diagram-of-arduino-versions

https://forum.arduino.cc/index.php/topic,146315.0.html