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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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Color Mixed #267

Closed akardes5 closed 7 years ago

akardes5 commented 7 years ago

Hi,

The project is very nice. I did the same. But the colors are mixed.

Red -> Blue Green -> Red Blue -> Green

For example; A red color image appears blue. How can I fix?

Thank you.

hzeller commented 7 years ago

You probably have a panel that has swapped inputs. Just wire up the R1, G1, B1 and R2, G2, B2 differently so that it matches your panel.

akardes5 commented 7 years ago

Do you know the Adafruit Hub75 R1 G1 B1?

Thank you.

hzeller commented 7 years ago

if you are using the HAT, then better remap it in software. look in lib/hardware-mapping.c and change the p0_r1 etc to point to the gpio it should be.

akardes5 commented 7 years ago

I think this will solve the problem. Thank you so much.

prunella2017 commented 7 years ago

@akardes5 , hey, did the hub75 work for you? Thanks!.

hzeller commented 7 years ago

There is now an option --led-rgb-sequence that allows to choose the order on the command line without changes to the code. (added in https://github.com/hzeller/rpi-rgb-led-matrix/commit/efe8a77f1958c342f97a3ac7f7d0601e02c30b6a )