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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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How to pixel mapping divide chain in two #1595

Open Ry-Kode opened 11 months ago

Ry-Kode commented 11 months ago

Hello,

I want to drive a 4 x 4 matrix display using two chains of 8 panels, but I can't find the correct pixel-mapping for straight connected cabling.

This is the cabling:

PIpixel_mapper8

I do not want to use U-mapper because this gives two dark horizontal bands in the image caused by the panels that are upside-down (rows 2 and 4).

Thanks!

anandrajgupta commented 11 months ago

https://github.com/hzeller/rpi-rgb-led-matrix/issues/1471

xuniuer commented 11 months ago

You should use U-mapper mode with 8 chains and two parallels.

anandrajgupta commented 11 months ago

He doesn't want the panels to be upside-down

Ry-Kode commented 11 months ago

Thank for the link @anandrajgupta, I'll see where this gets me.