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Topic: Externally powering LEDs so Arduino doesn't fry (Read 474 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

No PMs for help please.
Arduino with e'net at http://jimboza.gotdns.com:8085/
DO NOT power servos from Arduino 5V: give them their own power and connect the grounds.

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