RC Control of Canon Cameras

If you've got a CHDK-enabled camera, here's a nice instructable that shows how to control it with an RC radio. It uses an Arduino Pro Mini to interface between the receiver and the camera USB.

Chris A. chimed in in the comment section noting that this functionality is now built into the APM software, and that there is a MAVLink command to trigger the camera shutter.

I have to say, even though as a practical matter I would use the APM to control this, it's interesting seeing the more bare-bones approach in this instructable.