This fork supports the Olinuxino A20 single board computer directly
To make it work you can use the GPIO-2 connector, wiring is as follows:
- VCC - PIN 1
- GND - PIN 2
- SCL - PIN5 (TW10-SCK)
- SDA - PIN7 (TW10-SDA)
Reference: https://www.olimex.com/wiki/images/a/a9/Example.jpg
This driver is intended to be used with a 20x4 I²C LCD (arduino compatible) Exemple of these displays : http://hardware-libre.fr/wp-content/uploads/2014/03/02_1.jpg
Please follow installation procedure : http://hardware-libre.fr/2014/03/raspberry-pi-utiliser-un-lcd-4x20/