| Stretchable electronics, an emerging class of modern electronic materials that can bend and stretch, have the potential to be used in a wide...
| Stretchable electronics, an emerging class of modern electronic materials that can bend and stretch, have the potential to be used in a wide...
| There are now many different types of LED candle simulators available. Before we begin to design a more realistic candle with a wind-noise d...
| Imitation candles using an LED as the illuminating element are available commercially. But here we’re describing a rather different project...
| Traditional indicator lamps with a filament are often also available these days — on a one-for-one replacement basis — in versions made with...
| This inexpensive oscilloscope can be used at frequencies up to 20-30 kHz (optionally up to 1 MHz). It works from 12 V and can thus be use...
| The CD4046 is an integrated phase-Iocked loop (PLL) with integral voltage-controlled oscillator (VCO) that is used in many digital circu...
| It had to come: an LED that can produce all visible colours. It Is the Everlight Type 339-1 VRKGBBW. In fact, it consists of four LEDS in...
| When the disk drive indicator of a computer cannot be read (since the computer is under or beside the table) it may be useful. If difficu...
| Designing a suitable LED display for a particular application can be time consuming. In particular, the decoder that sits between the dri...
| This mains-powered stroboscope, designed by ELV, ofters a wide range of settings as weil as an external trigger feature so that it can be...