Hi there, So I am essentially creating a long string of RGB LED's using Adafruit's NEO Pixel strip (I am cutting them at each intersection and rewiring to extend the length between each) with a total of 111 LEDs. My plan was obviously to power the LEDs (wired up to the arduino) with an external 5v/…

Arduino Powering Multiple LEDs from External Power Source

system May 3, 2014, 6:54am 12

Your 10A power supply should be fine. you need to remove the switch or find out why your setup stopped working.
You can connect your 5V supply to the +5V pin of the arduino.

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Arduino Powering Multiple LEDs from External Power Source

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