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I am using an adapter (12 VDC, 2A) and I want to be able to power an LED strip with it plus the control circuit.

The problem is that the Atmega328 reboots, but when I only power up the LED strip with that adapter and power the control circuit with an independent 5 V adapter everything seems to be alright.

I can't do that in real world; I need to ude the same adapter.

I attached a picture of what I am doing right now. Please help me fix this.

I am using a 7805 regulator to reduce the 12 V to 5 V.

enter image description here

ocrdu
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JOSEPH
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1 Answers1

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Why not use the barrel input connector and input 12VDC there, the filtering etc on the board will help. Also as dandavis stated you need a bigger power supply or remove about 1/2 of your LEDs.

Gil
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