If you happen to be in the market for a small artificial sun, you may be interested to know that for about $1300, you can get a tennis-ball-sized LED array that outputs 120,000 lumens.

At first glance, it may look like [Rybitski]’s 7-segment RGB LED clock is something that’s been done before, but look past the beautiful mounting. It’s not just stylishly framed; ...

Yeckel] recently put the finishing touches on an ambitious implementation of a simple D-STAR (Digital Smart Technologies for Amateur Radio) transceiver using some very accessible and affordable ...

Abstract: We investigate two indoor visible light positioning (VLP) systems consisting of a single light-emitting diode (LED) and a single rotatable photodetector (PD) based on the received signal ...

Abstract: Within a digital system the information is represented by means of binary digits, also known as “bits”, and most frequently they have the meaning of numbers. In order to show the value of a ...