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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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Demo D0 not working on pi4 #1608

Open mattmar10okgov opened 11 months ago

mattmar10okgov commented 11 months ago

Just getting started here and attempting to run the demo D0 via the README instructions on a fresh pi4 install with a 64 x 32 matrix and an adafruit bonnet. Ive also tried setting different values (1-4) for --led-slowdown-gpio= and see different gibberish but still not expected result.

Am i missing something?

~/rpi-rgb-led-matrix $ sudo examples-api-use/demo -D0 --led-gpio-mapping=adafruit-hat --led-cols=64 --led-rows=32
Size: 64x32. Hardware gpio mapping: adafruit-hat

d0-1 d0 setup

davemaster commented 11 months ago

Greetings, try without the adafruit-hat, use the wiring diagram , and test if your rgb panel is OK

Also, you need to add to your command the options according your type of panel

imagen

SThiviyan commented 11 months ago

I had a similar issue, but I didn't use the hat. In my case the issue was that I used a power adapter that couldn't deliver enough current

davemaster commented 11 months ago

what power supply are You using?

SThiviyan commented 11 months ago

what power supply are You using?

I am using a 5V 2A General power supply. But I would recommend a 5V 4A one. My power supply seems to be struggling with the display sometimes.