Using Arduino to control circuit to LED strip Answered
First forum post here.
I am currently trying to design an LED light system where when I place my wallet onto an NFC reader the lights turn on in my room.
I am using an Arduino Uno for this project and I am stumped on how I do it.
I have a separate DC Controller and a 12v, 3A battery to power the LED strips. I just want to use the Uno and NFC reader to either open or close the circuit. I don't want to pass the amperage through the Uno as it will just fry the board.
Is there any way I can control the flow of the circuit without having the power pass through the Uno? I want to keep the power the battery pack supplies and want to make sure I won't just fry my board.
Any help will be appreciated! If you have further questions feel free to ask.