Let me introduce another simple microcontroller-based do-it-yourself circuit that detects motion and excites a light source in a flash. The “snooper” here is an ordinary passive infrared (PIR) motion ...

Together with the Arduino code you will require as well as schematic’s and part lists allow you to create your very own one-handed Arduino powered quad copter transmitter.

We’re still not sure exactly how [connornishijima]’s motion detector works, though many readers offered plausible explanations in the comments the last time we covered it. It works well… ...

This means it will cancel out different gestures if certain threads aren’t in motion. After a bit of smart programming using IR code and communication protocols, you can set the movements to ...