hzeller / rpi-rgb-led-matrix

Controlling up to three chains of 64x64, 32x32, 16x32 or similar RGB LED displays using Raspberry Pi GPIO
GNU General Public License v2.0
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Can only get yellow/red flickering lights. #1718

Closed StevenJansen closed 4 weeks ago

StevenJansen commented 4 weeks ago

I've been trying for hours to get my LED matrix to work on my Raspberry Pi 4, without success. I had checked the pins 3 times, and following the wiring.md file. When I run one of the demo's, regardless of which one, this is all I get:

WhatsApp Image 2024-10-16 at 12 46 30

I am very new to LEDs and matrixes. I did disable 1wire in the raspi-config, blocked the onboard audio and added the isolcpus=3 to my boot/firmware/cmdline.txt.

Does anybody got any clues/suggestions that I can try, I'm all out of ideas.

hzeller commented 4 weeks ago

Did you also connect GND ?