I have mounted an ambilight on a monitor, with 4 LED strips (w2812b) cut and joined by L connectors (top, bottom, left and right). When I turn on the Arduino, put the program, put the number of LEDs (122), only the bottom strip lights up, the rest do not light up, I have tried with another strip and the same thing happens. Do you know the reason?
it's likely in the code you did not provide or in the circuit / power you did not document....
we can't help much as our proverbial crystal ball is still in the dishwasher...
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Bad connection between first and second strip would be too obvious?
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Can you share a picture and schematic of your setup?
solved. they were the L connectors
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