I located the two pins that are responsible for powering up the PC. They are connected to the
Power On button and one pin has an output of
5 V while the other is the
So far so good, the problem is when I connect the
5 V one to the Arduino
VIN and a ground cable from the PC power source to the Arduino
GND, instead of powering my board, the PC starts and then promptly stops, as if I pressed the
power button and did not release it.
It seems that electricity passes through the Arduino without powering it. I tested the
GND pins with a normal breadboard power source and they are not broken, as the board starts up with no problem.
Why is the computer starting up instead of powering the Arduino? How can I use my Arduino to start up the PC?
My plan was to power the Arduino with the
5 V pin and send a
digitalWrite(somePin, HIGH) for a short amount of time to the ground pin from the PC that would normally be connected to the power button, thus "closing" the circuit like the normal case button would.