Convert a NES gamepad to USB with Arduino

Step 10 Construction: Resistors

With the basics needed for the microcontroller to run we can hook up the resistors that are the first step in our level conversion from 5v to ~3v

First resistor to hook up is the 1k5 resistor, insert it into the top hole of where the cord used to plug into, solder it in place from under and just kinda bend its lead out of the way for now

Side note, I say 1.5k and picture a 1.0k, reason for this is I already have 100 3.3v diodes, and with the currents involved its only pulling the line up to ~2.7v instead of 3.3, this may be fine for my mutt open architecture computers but not all computers will "play ball", use 3.6v diodes and a 1.5k ohm resistor and when you do the math its around 3.2+ and will not cause issues with computers that dare things to be within spec

Now Take your 2 68 ohm resistor and solder a end to pins 4 and 6, trim their leads so they stagger a little at the opposite end and bend those leads to the right

Finally for this step add some jumper wires to the 3 resistors and clip them so they all end at the same place (I used red for the pull up resistor, and blue for the 2 data lines