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I set up a light show on my Arduino and it worked perfect when I tested it. I connected the the data line of my 1 meters (3.2ft) of addressable ws2811 ledstrip direct on the breadboard next to the Arduino. (I used a separate power supply) This worked perfect, however, when I connected the same ledstrip 3 meters (10ft) away with an regular 3-core-cable the strip flickers unpredictable.

Do I need a special cable to connect an addressable ledstrip? Any suggestion?

  • What area on the cable, it sounds like voltage drop. – MatsK Jul 13 '18 at 11:44
  • Try adding a resistor (220-470ohm) between the data pin of the Arduino and the data in of the strip. They advice to put it nearest to the strip. – Gerben Jul 13 '18 at 11:47
  • @MatsK, I didn't thought about that. While I connect the longer cable I also connected other leds (instead of just one for testing) on the same power supply. Although I doubt it's an Voltage drop, I will look at it. Thank you for this suggestion – Richard Jul 13 '18 at 12:11
  • I have done this with a simple bell wire over a distance of 4-6m (5 strips with a length of 4m each), but I provided the strips directly with power - without a long power cable. So the data line shouldn't be a problem, if it doesn't have a too high resistance. – chrisl Jul 13 '18 at 12:51
  • Another suggestion is to add a capacitor at the strip end. – Gerben Jul 13 '18 at 15:45

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