I want to make a long display with scrolling text, with multiple of these MAX7219 led matrix modules.
I need this:
https://github.com/JonA1961/MAX7219array
->
git clone https://github.com/JonA1961/MAX7219array
test the demo: ImportError: No module named spidev
Ah.
http://www.100randomtasks.com/simple-spi-on-raspberry-pi
Make sure you have python-dev package and do:
mkdir python-spi
cd python-spi
wget https://raw.github.com/doceme/py-spidev/master/setup.py
wget https://raw.github.com/doceme/py-spidev/master/spidev_module.c
sudo python setup.py install
test the demo.
Voilà.
The last connected module on the chain is the first one of the display (most left)
By default the code is set for 8 modules, to change that edit the config in MAX7219array.py
NUM_MATRICES
Note that in the demo code there is also hardcoded stuff assuming 8 matrixes.