PIC, Arduino, and Raspberry Pi: If you can work with these three types of systems, then you can connect with just about anything Microcontrollers (MCUs) can be very handy, but without the ability to ...

A year ago [Lochie] bought an Airwick automatic air freshener, and while he thought it was a cool gadget, the freshening spray and the novelty ran out in short order. The device collected dust in his ...

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 ...