Author Topic: RGB LED Matrix  (Read 3327 times)

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jokamatho

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RGB LED Matrix
« on: June 08, 2020, 01:44:54 PM »
I tried to control an LED matrix with the GeeXLeb matrix library, but unfortunately it didn't work.
act. RASBIAN Buster
GeeXLab v.0.29.17.0
Raspberry 4 B 4GB

With the same installation, but replacing the controller with a Raspberry 2 B, it works immediately.

Result of "rgbmatrix_init" is 1, but there are no signals on the GPIO

JeGX

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Re: RGB LED Matrix
« Reply #1 on: June 09, 2020, 11:44:24 AM »
Thanks for the feedback.

I haven't tested the RGB Led Matrix lib on Raspberry Pi 4 but according your bug-report, I have to update the lib with the latest version that should work with the RPi4.  Added to my todolist  :P


JeGX

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Re: RGB LED Matrix
« Reply #2 on: June 11, 2020, 07:22:27 PM »
GeeXLab 0.33.0 is available and should support RGB LED Matrix panels on Raspberry Pi 4:

https://www.geeks3d.com/hacklab/20200611/geexlab-0-33-0-released-for-windows-linux-and-raspberry-pi/

Let me know.

jokamatho

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Re: RGB LED Matrix
« Reply #3 on: June 12, 2020, 03:13:25 PM »
Thank you for the fast reaction. I made everything new. Raspbian from 2020-05-27, GeeXLab v0.33, but unfortunately not a success. With the Pi4, output is only in the viewer, no signals to the GPIO. HZeller software works. Everything works with the Pi2. Maybe you have an idea, thank you.

jokamatho

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Re: RGB LED Matrix
« Reply #4 on: June 12, 2020, 05:47:36 PM »
... some more information:
-current version of Adafruit HAT
-2 pieces of 32x64 RGB LED panels from Adafruit
-rgbmatrix_initialzed = gh_rpi.rgbmatrix_init (32, 4)
- Output script adapted for 64x64

for HZeller
- --led-gpio-mapping = adafruit-hat
- --led-rows = 32
- --led-cols = 64
- --led-chain = 2
- - parallel = 1
- --led-pixel-mapper = U-mapper; Rotate: 180

jokamatho

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Re: RGB LED Matrix
« Reply #5 on: June 14, 2020, 10:51:15 PM »
Now it works fine.
Thank you for your personal work. It is a good job. ;D ;D ;D

JeGX

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Re: RGB LED Matrix
« Reply #6 on: June 15, 2020, 05:35:26 PM »
I hope you have used the very last version 0.33.1 I released here:
https://www.geeks3d.com/hacklab/20200612/geexlab-0-33-1-released-for-raspberry-pi-4/

This version fixes some bugs related to GPIO / RGB LED matrix panels...

I also published some videos of RGB LED matrix demos:
https://www.geeks3d.com/hacklab/20200615/rgb-led-matrix-demos-updated-for-raspberry-pi-4/

jokamatho

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Re: RGB LED Matrix
« Reply #7 on: June 16, 2020, 12:30:54 PM »
Yes I have. Many thanks for the support.  :D :D :D