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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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Lower half of the LED Matrix Board doesn't show green colors #317

Closed ritvikbiswas closed 7 years ago

ritvikbiswas commented 7 years ago

Hello,

Everything works fine for me except the colors on the bottom half of the display. For some reason, the bottom half's LEDs won't display the color green. I verified this by running the first demo and then noticing that half of the green "Hello" text was cut off.

How can I solve this?

Thank You, Ritvik Biswas

hzeller commented 7 years ago

Do you run it on some first generation Pi? Did the remedy described in the Readme not help? Or, simply the G2 line might not be properly corrected.

ritvikbiswas commented 7 years ago

I ran it on the pi 3 model b. Which g2 line should I try to correct?

hzeller commented 7 years ago

The one in the chain that is not working. If you only have one chain, that would be Pin 21 to the panel.

https://github.com/hzeller/rpi-rgb-led-matrix/blob/master/wiring.md#wiring-diagram

ritvikbiswas commented 7 years ago

Thank you for your help. A simple change of wires at Pin 21 solved my problem.