pi_i2clcd

This code is based on Lewis Loflin's code: https://www.bristolwatch.com/rpi/i2clcd.htm

Adaptions I made:

• using pigpio (http://abyz.me.uk/rpi/pigpio/index.html) instead of wiringPi
• added two more lines for 20x04 LCDs

Instructions to install pigpio: http://abyz.me.uk/rpi/pigpio/download.html

Running this demo:

• download the code
• run make
• run sudo ./i2clcd