Did you know that the inside of the Nintendo Wii sensor bar is nothing but two sets of LED lights on both ends? The technology isn’t as complicated as Nintendo would have us believe. The Wiimote picks up the infrared light, which can’t be seen with human eyes, and uses it to facilitate the angle, rotation, and position that the Wiimote is pointing at. There isn’t any fancy motion tracking technology within the sensor bar itself. As a result, nearly any type of infrared light will work as a replacement for the bar, including candles!
Below is a YouTube video demonstrating how it works. It’s really basic. Just put two candles either on top or lower than the television and then spread them out to about he sensor bar’s length apart. Voila! Instant Wii sensor bar replacement.
So the next time you forget your sensor bar or it breaks, just pick up some new infrared LED’s or in an pinch use candles – just don’t burn the television or house down.