Command line config for 64x32 panel!

1

I have designed my own active type HAT [here] following the schematic and pins in the repo.

I’m now trying to test the HW HAT on RPI-3B+ and thus just have put one 64x32 panel on connector 0.

When I run the demo:
sudo ./demo -D 0 --led-gpio-mapping=regular --led-rows=32 --led-cols=64 --led-chain=1 --led-brightness=100 --led-show-refresh --led-slowdown-gpio=2

My out is a bit weird:

WechatIMG560
WechatIMG5601440×1080 129 KB

Not sure what I’m missing?
If it is HW problem or some how the parameters are not configured properly?

Thanks for any pointers.

2

Hi dattasaurabh82,

As you use 64 panel you need to properly connect row E. Did you try moving the jumper between pin 4 and 8 ?

You can also try different --led-multiplexing and --led-row-addr-type options.

You don’t have to use --led-gpio-mapping=regular --led-brightness=100 and led-chain=1 as they are default values.

1 Like
3

Ah the jumper parts I over-looked/forgot :sweat_smile:. Will give it a try and keep here posted