New and old library - connections about rpi-rgb-led-matrix HOT 3 CLOSED

I downloaded your source code and I tried to run it on 16x32 and 32x32
panels. However, I have some questions.

1. I downloaded the current source code. And I used Adafruit tutorial to
   connect matrix to RPi 2
   ("connecting-a-16x32-rgb-led-matrix-panel-to-a-raspberry-pi"). I run
   text-example code and it works correctly, which is confusing because in
   your tutorial OE and CLK have changed. I keep connections as in Revision 1
   (OE Pin3, CLK Pin 5) - but in this case I will have a problem to connect
   3rd display in parallel.

As long as you only do one panel, the pin-out is actually backward
compatible so that old wirings still work (I output output_enable on
multiple pins for instance).
As soon as you define SUPPORT_MULTI_PARALLEL, this won't work anymore.

1. I am wondering whether there is some solution to make mirror display.
   Let's assume I have 1 32x32 display. I would like to show the same
   information on my 2nd 32x32 display. I do not want to use parallel/chain
   solution. Splitting cables would be the solution? From each output of Rpi2
   I would lead out 2 cables and connect to each panel..? Maybe you tried it?

This should work. There might be trouble with too much load on the cables,
so maybe you need to define -DRGB_SLOWDOWN_GPIO.

1. I already read solutions of running led matrix on Rpi and Arduino. I
   wonder whether there is some smaller/cheaper solution to run only one 16x32
   panel? Maybe some Arduino clones?

Depends on what you want to do. The Arduino is very slow and you can barely
keep the refresh running; so if you want to change the output, then it
might be slow.
But maybe some STM32 could help - it is cheap, but powerful enough to do
all kinds of other things as well.

-h

from rpi-rgb-led-matrix.

Thank you for your answers!

from rpi-rgb-led-matrix.

I guess I can close this now ?

from rpi-rgb-led-matrix.