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?