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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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Not divisible by 2 - Mapping 9 panels #1439

Open ggggggr opened 2 years ago

ggggggr commented 2 years ago

I have a 1 daisy chain setup of (x9) 64x64 adafruit rgb led matrix panels, how can I make it happen?

The terminal tells me to make them ¨--led-chain=9 has to be divisible by 2¨, it displays a bad mapping of my file. I tried connecting 3 more, to make it 12 panels (divisible by 2), with the same parameters + ¨--led-chain=12¨ and it doesn't map properly. The panels are fully working, they display the pulsing colors demo on each panel.

code in terminal: sudo ./led-image-viewer /mnt/usb/192.gif --led-cols=64 --led-rows=64 --led-gpio-mapping=adafruit-hat-pwm --led-chain=9 --led-pixel-mapper=U-mapper

Thanx!

xuniuer commented 2 years ago

I bet panels with U-mapper/one chain/one parallel needs even number because the chain will be folded, like U, to display. To solve it, use three parallels with 3 panels one chain with default mapper, if 9 panels are used, or to use 8 or 10 panels with one parallel with U-mapper to see proper display.

davemaster commented 2 years ago

Had You tried to define 10 panels (1 ghost panel)?

Good luck