Convert a NES gamepad to USB with Arduino

Step 7 Construction: Start hooking things up

First flip the board over and solder only where the atmega pins are poking through the pcb, we just connected 6 out of the 8 buttons yay, we still need to connect buttons A and B

Get a segment of jumper wire, tin the end, get a (not excessive) ball of solder on the nes pad 15, do not push the wire through the hole, just solder it flat on the pad

Now loop it around so it meets up with pad #12, Pin # 17 of the atmega is already in this hole, and the pad is not connected to anything else in the controller, so B button is good to go, A was not as graceful

For button A solder a wire flat onto pad #1, loop this around to the top of the board and solder to pin # 23 of the atmega

Also solder blob pins 20 and 21 together (dont overheat) this is aref and analog power supply, aref is soldered to the pcb's +5v bus