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 ...

With a standard old HC-SR04 ultrasonic sensor, an audio module and a servo to drive a custom gauge needle he’s made a device which can warn people around you if they’re too close for comfort.

Posted in hardware, home hacks Tagged arduino, oil tank, ultrasonic sensor, xbee ← Hack Your Datasheets Using Datasheet.net A 555-Based, Two-Channel Remote Control Circuit → ...