Flight images with Arduino

Over the winter I spent some time messing around with the Arduino micro controller. I had a ton of fun trying to capture in-flight images of the painted bunting at the feeder! It is hard to capture small songbirds in flight, but I think I got a few good images. I was able to utilize an infrared proximity sensor placed near the feeder to capture images using my Canon 40D on a nearby tripod.
Take a look:

Birds in Flight - Images by Chris Johnson