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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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Led panel P8 16x32 - 1:4 multiplexing? #430

Closed getvladimir4 closed 6 years ago

getvladimir4 commented 6 years ago

Hello Sirs, I told you that I have correctly tested the panles led p10 16x32, p5 32x64 and everything was successful. But when testing the led panel p8 16x32 does not work it apparently requires a different scan. Could you help me how to solve?

P5 32x64 (ok) https://www.youtube.com/watch?v=DA7VOTb2M0o P8 16x32 (bad) https://www.youtube.com/watch?v=zr0klS0OVoE

sudo ./demo -r 16 -c 1 -D 3 image

20171114_102953

P.d:. All the panels that I have are hub75

angelogoncalve commented 6 years ago

Dear Vladimir. First what is the scan rate for your panel 16x32? The hzeller library is prepare for indoor panels and for panels with 16x32 the scan rate is 1/8. Perhaps tour panel is outdoor and have a scan rate 1/4 or 1/2. You need build a correct transformer for your new scan rate. I think it is better speak with Zeller. He is expertise in this area. I am try to do that with a 32x32 panel with a scan rate 1/8 (see https://ibb.co/mCZNwv) but I did not fix yet and I need help too. He made prepare for 32x32 panel but with a scan rate 1/16. The scan rate should be a parameter to pass in the configuration of the options of the matrix that is wonderful if it is possible. Best Regards, Ângelo.

angelogoncalve commented 6 years ago

your*