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This is not about using a capacitive button to control an Arduino; it is the opposite. I would like to "touch" a capacitive button on another conventional device. There could be a way like actually moving a finger-like stick and touch the button, but that is too much work. Can't it be done non-mechanically?

According to this page ( https://scienceline.org/2012/01/okay-but-how-do-touch-screens-actually-work/ ), "Instead, they work with anything that holds an electrical charge – including human skin.". Then, can I emulate "touching" the button by sending some small electrical current?

If so, what module/parts do I need to send such small current?

Damn Vegetables
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The simply way is making a little capacitor. Cut 2 circle with aluminium from a can and put a paper between them, then solder one one to one circle and other to the other side. One wire goes to the positive and the other to the I/O. When you set to 1 it should create a capacitive charge and "touch" de button.

Shark
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