I'm trying to connect and power properly a WS2811 LED strip to an Arduino Uno. I'm using a 12V 7A 84W power supply.
My setup is similar to the one below:
(see attached file)
Except for the voltage of the power supply (12v not 5v). I added a 680uF 50v capacitor to the GND and the +12v output of the power supply.
(for my project I need 3 separate LED strips, so consider all this setup x3)
What do you think about it? any suggestion or advice?
I've tried it yesterday: it worked for the first strip, but after connecting the second one, it "broke"...
Now I'm not able to upload any code on my Arduino. I got this error message:
avrdude: stk500_recv(): programmer is not responding
I may have fried my Arduino
Thank you for your help