I am working on a big project that uses multiple infrared sensors, motors, solenoids, lights, and pushbuttons. I ultimately wanted to run everything using a 9V DC power supply through my Arduino MEGA. Last night my Arduino got really hot to the point you couldn't even touch the area by the DC power …

Using Power from two Arduinos

schoolsterz123 January 30, 2013, 5:42pm 3

My 9V power supply gives 2000mA, but isn't the problem that I'm pulling too much current through the 5V rails and the VIN pin?

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