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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 matrix lots of noise #635

Closed jasonv3 closed 6 years ago

jasonv3 commented 6 years ago

i am sure i make right wiring,and use adaruit led 16x32 . but every demo i run,i found they have noise,blink situation,here is the secene https://www.youtube.com/watch?v=6wLBvYCgUoY .any body help me make out.

hzeller commented 6 years ago

First things first: Did you read the troubleshooting section https://github.com/hzeller/rpi-rgb-led-matrix#troubleshooting and followed all things mentioned there ?

angelogoncalve commented 6 years ago

Use this option when create the rgbmatrix: options.gpio_slowdown = 4

ukdepartureboards commented 6 years ago

May also need to add a buffer chip if your currently talking directly to the raspberry gpio. Some boards need a clean 5v signals.