Using motion detectors and an Arduino you can trigger lights, fans, or even an pneumatically controlled cleaver-wielding clown to help add your house to the “if you dare” list.

Hi, I'm Bill. I'm a software developer with a passion for making and electronics. I do a lot of things and here is where I document my learning in order to be able to inspire other people to make ...

For breadboarding your next great Arduino-powered robot, maybe not so much. If you remember Circuits123 (or circuits.io), this is the same underlying technology.