Hi, I'm new and I hope I post this to the right section. I'm using a raspberry pi zero w with Hyperion.NG Alpha 9 with a ws2812b directly connected to it: This one works: LED Hardware 1: Type: ws281x RGB Byte order: GRB GPIO Number: 18 DMA Channel: 5 PWM Channel: 0 My guess is, that I could add a second LED strip with the following settings: LED Hardware 2: Type: ws281x RGB Byte order: GRB GPIO Number: 13 DMA Channel: 10 PWM Channel: 1 However, if I set it up like this, the first ledstrip starts to flicker and also the second. Is my thought for the second configuration somewhere wrong or can the raspberry not handle it? I assumed I can just use the second PWM channel and another DMA channel and it just works.
I suspect the Pi not being able to maintain a stable data signal (on your GPIO 13 and 18) when 2 ledstrips are connected. Sometimes it is already tricky to maintain only one... You may want to use a level shifter on both your GPIO to fix the problem.
Good point, any recommendation for specific type? Currently I have 100Ohm resistor on the data cable for each data IO.
That kind works perfectly, you'll be able to connect both data on it: € 1,24 5%OFF | Module de transformation de niveau logique bidirectionnel bidirectionnel bidirectionnel de manette de vitesse de niveau logique de 10 pièces https://a.aliexpress.com/_BSloAo
Hi, I read in other tutorials that they mostly use 74HC14 level shifters. But I found one similar to yours: https://i-item.jd.com/58736421688.html I currently live expat life in China, so this probably should do and also has several channels. It also looks like I don't need the resistor on the data line anymore when using the level shifters.
