Today I decided to do something fun, I went to my local flea market for inspiration and found it! It came in the form of a dead but in good-condition NES controller. After closer inspection, the problem was a dead 4021 p2s IC.
I was about to convert it to a TV controller when I remembered it was MakeyMakey Monday!
I started by cleaning the device and figuring out how I was gonna go about wiring the buttons to the MakeyMakey. I then got a few of my Adafruit Extra-long break-away headers and an old red pen (I needed the ink, you will see why in a moment).
I inked the top of the headers with the red pen’s ink and then placed the NES Controller back on-top of the headers; This gave me a clear idea of there I should drill.
I got my trusty hand drill and fitted the headers to the back of the NES Controller. Afterwards, I testing the header locations to make sure the MakeyMakey fit correctly. It did!
My attention them moved over to the PCB, I cut the wires for the controller cable and desoldered the whole thing, IC and all.
I then soldered a few wires from the headers to the controller PCB.
And finally cut the pull-up resistor traces; this step is extremely important! Failing to cut them will result in all buttons getting triggered.
I then cleaned up and closed the controller making sure I didn’t bend any of the internal wires.
Tested it by playing some minecraft.
Up Arrow = W
Left Arrow = A
Down Arrow = S
Right Arrow = D
Select = F
Start = G
B = RIGHT CLICK
A = LEFT CLICK