Seeed-Grove-Wii-Nunchuck-Interface-Board-5V-I2C-Seeed-Studio-103020009-P-The-Grove-Wii-Nunchuck-interface-board-from-Seeed-Studio-plugs-into-the-connector-on-the-nunchuck-cable-&-allows-an-Arduino-or-any-other-microcontroller-with-I2C-to-get-data-from-the-nunchuck-As-well-as-the-thumb-stick-the-Wii-nunchuck-also-has-an-accelerometer-&-you-can-read-from-either-of-these-over-I2C-Better-yet-there-is-a-wealth-of-tried-&-trusted-software-available-on-the-internet-which-will-simplify-