Arduino

From James's Wiki

First time setup on Ubuntu:

can't open device "/dev/ttyACM0": Permission denied

sudo usermod -a -G dialout $USER

logout and log back in.

sudo chmod a+rw /dev/ttyACM0

File:Arduino-mega-pinout-diagram.png

Esp8266

DHT22

Sunfounder_Rotery_Encoder

MQ-7_Gas_Sensor

Arduino_PIR