Apple stores, for example, use white light with stunning results. Ferrari, Aston Martin and Jaguar have all introduced LED-based ambient lighting to the interiors of their high-end cars. The ...

An Arduino uses a set of LEDs and an RFID reader to bring the object alive. A matching ring contains the RFID tag that activates the lights when held up to the lantern’s lens.

The Arduino uses latitude and longitude to help decide when to click on the lights, so it's incredibly accurate. Otherwise, the build just includes an on/off switch, a Tiny RTC, a time adjustment ...

Riding a bicycle at night is a bit dangerous, but electronics blogger Jenna DeBoisblanc shows off how to build a system that includes turn signals, a strobe light, speedometer, and brake lights to ...

Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. Anyone interested in creating interactive objects can “play” with Arduino! Described ...

This clock tells the time using set theory and 24-hour time. From the top down: the blinking yellow circle of light at the top indicates the passing seconds; on for even seconds and off for odd.