Wireless Wii Nunchuck controlled Arduino

Step 2 How to connect these wires to board

Once this socket is soldered to Arduino, you just plug radio receiver of wireless Nunchuck into it and off you go.

Only 4 of the 6 contacts in the plug/socket are required, these are:

+V   Power (Chuck designed for 3.3V but seems to work well with a 5V supply from Arduino board)
GND (Ground)
SDA   (connect to Analog pin 4 on Arduino)
SCK   (connect to Analog Pin 5 on Arduino)

Check and recheck your wires and label them. Here is a view looking into the female socket (on the end of your extension cable that you have just cut in half) you will insert the male plug sticking out of the wireless nunchuck radio receiver unit into:

NOTE: I have updated this figure 25/6/10 as previous diagram was wrong! very very easy to make a mistake here.