The port of Fadecandy firmware to run on SmartMatrix is hacked together and not documented well. If you’re looking in the docs folder, any docs are probably referring to the Fadecandy board which drives WS2812 LED strips and not multiplexed matrix panels like SmartMatrix.
You need this firmware running on the Teensy:
You need to use this modified server which can talk to the SmartMatrix_Fadecandy device:
Jason Coon contributed a compiled version of the server available in the
bin/fcserver-rpi folder, so you shouldn’t have to compile the server.
What I am attempting to do in the long run is have 12 SmartMatrix panels in a single row displying texts etc.
Is all you want to display simple scrolling text across 12 panels, or do you want nice looking graphics and patterns behind the text as well?