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.