I am beginning a project with an arduino, the first steps of which will be controlling a nintendo 3ds via the arduino's code. I have read a little into it and experimented on my own with some luck but no solution. I have seen where somebody has simply soldered a single wire to a contact for each button (A, B, up, down, etc) and control it with pwm. My understanding is that 1.8 volts is the necessary voltage level. Can anyone provide some tips from prior experience? I am afraid of just throwing an attempt at it and destroying my 3ds in the process.