Wii Remote - Lighting the A Button (v1)

  • Wiimote
  • Soldering Iron (I used a Weller 25w)
  • Soldering Sponge
  • Solder (Rosin Core/.022dia)
  • 3mm LED color of your choice*
  • Resistor*
  • Tri-wing Screwdriver
  • Electrical tape or sharpie (optional)
*In this tutorial I used a 3mm Blue LED (3.3v/30ma). I have yet to test an LED that requires 2.1v (such as Red). Assuming that the wiimote outputs 3.3v, you'll need to use an 82ohm 1/4w resistor to properly power a 2.1v LED.

Where to get LEDs-

Where to get a Tri-wing Screwdriver-

My tri-wing screwdriver looks like this-

Before we start, I've read that some wiimotes are incapable of being modded. This is indicated by a series of numbers printed on the wiimote's PCB. Just take off the battery cover, remove the batteries and take a look. This wiimote is moddable-

However, I've also read that it doesn't matter.. but alternate power sources may have to be used. I'm not sure.

Lighting Up The A Button

Step 1-
Disassembling your wiimote:
Use this tutorial- Link

Step 2-
Prepping your LED:
This step can get a little tricky.. and will probably have to be manipulated after initial install. But what I want you to do is bend your LED something like this-

Step 3-
Prepping the solder points:
Like in a few other mods.. we'll be dealing with these 2 points. Just go ahead and dab some solder on the points if you want.

Step 4-
Positioning your LED:
Go ahead and place the LED something like this (making sure the legs are adjacent to their appropriate soldering point)-

Step 5-
Soldering your LED:
Now that you got your LED positioned, you have 2 options.
1- Solder it as is, then cut the remaining legs off.
2- Cut the legs, then solder.
Either way, you'll end up with something like this-
(sorry, this picture doesn't really help. I drenched my connection in hot glue)

Step 6-
Modifying the position of your LED:
Now that it's good and soldered (and possibly even hot glued), it's time to make sure your LED is in the absolute correct position. I want you to position your LED like so-

Step 7-
Now that your LED's legs are soldered and your LED is properly positioned, it's time to test!
There are plenty of ways to test.. what I like to do to test without completely assembling the wiimote is place the PCB into the bottom half of the wiimote. Then grab one of the button "pads" (the rubber thing that goes under the buttons) and position it onto it's corresponding button. Now all I have to do is press down on the black "nub".. and it'll be just like pushing the button!
Hopefully you'll get something like this-

Step 8-
What I would recommend now is that you take the top half of your wiimote and where the A button is.. place either some electrical tape or color there with a sharpie. The reason behind this is because if you don't, the light from the LED will bleed through.
For this tutorial, I used electrical tape... But I think if I were to do it again, I'd use a sharpie.

Step 9-
Now that your wiimote is all good and ready, go ahead and reassemble it. Refer to Step 1 if you need help.

Step 10-
Testing once more:
Ok, so now it's assembled. Go ahead and test it! You probably wont get the satisfying effect you wanted, but it'll look something like this (it's blue.. but kinda looks purplish)-