I'm encountering some issues trying to run multiple sk6812 strips on one arduino.
the idea was to put front and rear leds on a bobby car.
on the front now are two strips of 6 leds each connected with a resistor each to a seperate PWM pin of the arduino nano. When one runs everything is fine, but as soon as the second is alsl connected the strip fails.
First just one of the leds shows a different color than the program, then this strip starts behaving weird. At soms point after disconnecting and testing it looks like the leds are not responding anymore, I presume they are really broken.
initially i was running a 330 ohm resistor, moved up to higher values now. i have tried running the leds from lab supply, from 5v usb etc.
Taking one step back i have wired one single led to each pwm pin on the arduino, this worked.
When I went one step braver and connected a 6 ledstrip together with the single led I got the same result again and the 6 leds failed. They dont seem to fail directly but after few seconde.
I have tried with and without a 1000muF capacitor between plus and minus, but dont think this made a difference.
I hope there is somebody that can help me on my way as there is somebody waiting for a bobby car with light and sound
These addressable strips have nothing whatsoever to do with PWM pins on an Arduino.
We seem to have no idea how you are connecting them or how you are coding. At this point, photos - taken in full daylight, not in a dark room, and perfectly focused with at least 4 megapixels - as well as schematic diagrams and code cited according to point 7 of the instructions at the top of each forum index, would be an absolute minimum from which to work.
I was hoping for a bit of a constructive answer. It's hard to get everything nicely into one photo and I was about to post a diagram which equals my setup.
The PWM answer and dark room 4 Megapixel show a lot of underlying frustration, maybe this wasn't the right way to try and reach some helpful people. But I'm sure in your next post you will be happy to take the time to write a 300 words story about your frustrations, unfortunately...
