Hi! I'm just starting to play with arduino and I'm trying to hack an RC car. I already figured out how the rc works (I want to use to the arduino to control the rc, not the car itself). Basically I just have to make two wires touch to give a command (left, right, forward or back), if I use a button to connect the wires it works perfectly but I want to control it from my pc sending commands via serial so I need an electronic (or digital? Whatever) button's equivalent which I can "push" (like a button) from the code in running in my arduino.
Could someone please tell me what to use? I know it's probably an easy answer Buy I haven't been able to figure it out.
Thanks in advance to everyone!