This is a Python module for driving an ST7565 Positive LCD (128x64) with RGB backlight, as available from Adafruit and other vendors.

It uses the Linux kernel spidev module to handle communication with the LCD, and the RPIO.PWM module for accurate software PWM to control the RGB backlight.

Requirements

You must have the Linux spidev module loaded. You should see at least the file /dev/spidev0.0 on your system (and entries in /sys/bus/spi).

Pins

You can configure this library to use whatever pins suit your fancy, but the defaults are:

• spi bus 0
• spi dev 0
• lcd A0 is GPIO 24
• lcd RST is GPIO 25
• red led is GPIO 18
• green led is GPIO 22
• blue led is GPIO 23

Installation

This is a standard Python package:

python setup.py install

Demo

This package includes a simple demo. After installing the library as above, you can run the stdemo command to display an image on your LCD. If you are not using the default pin layout you will need to configure things using --pin-a0, --pin-rst, --pin-red, --pin-green, and --pin-blue.

Display a simple image like this:

stdemo

Go wild like this:

stdemo --wild

Note that if you are using an Adafruit ST7565 you will need to pass the --adafruit (-a) option or you will end up with garbled images.