Red Echo

April 2, 2010

My new soldering iron arrived yesterday, so I finished up one of the LED glow poi I’ve been making for Ava. I did a little experimentation with the accelerometer, and determined that poi experience pretty high G-forces: even at the accelerometer’s 6-g maximum setting, it was easy to peg the maximum. This makes it easy to tell when someone is spinning the poi, but it means the influence of gravity is lost in the noise. I’ll have to use some clever math to determine rotation speed. In the meantime, some straightforward PoV code gives a pretty nice effect, and the poi is smart enough to turn itself off after you’re done playing with it.