He calculates altitude based on pressure. The main parts are an Arduino Pro Mini clone, a BMP180 sensor and a Nokia 5110 LCD module. A standard 9V battery supplies juice to the device.

Keeping track of things like the temperature, humidity, and smoke level in your house is important. If you want to make your own system for doing so, ...

ZALMAN's CNPS13X DS BLACK side-flow CPU cooler, equipped with an LCD temperature display, offers impressive technical features. The cooler's top cover houses an LCD screen that provides real-time ...