Wireless SNES controller project

01/01/2016
So, i purchased an Everdrive for a friend for Christmas, and something that came up was the leap backwards to cabled controllers.  And I got to thinking "electronics has come a long way. The SNES Controller port isn't that complicated.  Maybe I could hack something up with an Arduino?

And thus begins the
Wireless SNES controller project, time and money permitting.

Tthe plan is to acquire a pair of cheap SNES clone pads from ebay, cut off the SNES ends and use them to connect an Arduino with a wireless RS232 reciever, with matching transmitters inside the controllesr,  The SNES controller port supplies 5V with which it should be possible to possible to power the Arduino, though obviously the controllers will need a their own battery supply.

The Arduino should be able to receive data from the pad via RS232, package up the data neatly and supply it to the SNES serially, as though it was the original 4021 IC in the SNES controller.

Ideally the result should collect to both ports at once, and pretend to be two controllers.