Arduino Technology
Wii Nunchuck data logger

One of our readers sent in the really interesting data logger. It uses an Arduino to capture the Nunchuck’s accelerometer data and stores it to the eeprom.

I used a Microchip 25AA512 eeprom. It holds 64000 bytes. Normally the accelerometer data for each axis is in a range of about 1 to 1000. I scaled that down to 1 to 255, so that I could fit one accelerometer reading to a byte. By doing that, the eeprom can hold over 21,000 nunchuck readings.

Read more about the Wii Nunchuck data logger



HOW TO – Read Wii nunchuck data into an Arduino