What V.Smile hacks have been done? Answered
I would like to develop games for the V.Smile, but I don't know how I should do it. However, upon disassembling a V.Smile Plus controller (which had labeled communication pins), I found the V.Smile controller pinout:
2=RTR (to request a report from the controller)
6=RTS (to prepare the controller to change the state of an LED)
Also, if you want to make your own controller, make sure that it is polarity-protected, because the power-down voltage can be as much as -1V.