Hi guys, I'm trying to make a modification to an old console and in short I'm making a platform where you connect the console to a usb type c and while it charges, you can use an external controller to play on it, for this, I've studied the operation of the console and when a certain voltage is given to certain points, the console identifies the circuit as closed, give it to control this, I need to know how to send the command to send voltage to one of the 10 possible connections, that is why I need help .
Making a broad summary, how do I turn on some LEDs by pressing the buttons of an external control through a USB type C that in turn, if possible, charges an internal battery?
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