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Topic: Externally powering LEDs so Arduino doesn't fry (Read 562 times) previous topic - next topic

teke115

Hello,
I am making a type of LED arrangement almost like a display board with over 20 LEDs being used. My arduino gets very hot when i power 12 of them at once. Can someone draw me a setup on how I could hook up an external Power supply to power all of the LEDs while using the arduino as a switch? Thank you all!!!

JimboZA

Johannesburg hams call me: ZS6JMB on Highveld rep 145.7875 (-600 & 88.5 tone)
Dr Perry Cox: "Help me to help you, help me to help you...."
Your answer may already be here: https://forum.arduino.cc/index.php?topic=384198.0

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