I'm currently facing big flickering issues when using Madmapper and teensy to control strips with more than 50 leds.
My setup :
- 44 x 11 (484 pixels) WS2812B led matrix
- Teensy 3.2
- Madmapper 3.7.1/ windows 10
- 20A 5V power supply
I followed "MadMapper USB to LED Tutorial" and I'm currently able to play animations on my led matrix but there is a big flickering on all the leds.
I tried to reduce the number of leds and when decreasing to 50 I can play simple animations, change the color, etc without any flickering.
- On the tutorial it is written that a Mac is needed but nothing about PC, do you think there good be specific issue on the serial transmission with PC ?
- Do the "MadLED protocol" changed since the specifications were written ? I tried to control only one led and I decoded the signal with an oscilloscope.
I read 0xFF for the packet header as specified, but for the packet MAD_LED_DATA i got 0xDF but not 0xBE.
Also, when I change the RGB value of the pixel I can see the 3 last packets changing but the maximum value is 0xFF and not 0xFE.
I you have any idea of how to solve my problem or any question to make it more precise feel free to ask
Thank you very much in advance !!