| There can be no doubt that Microchip’s PIC microcontrollers have achieved general acceptance in the electronics industry and immense pop...
More about LED (745)
| To many hi-fi enthusiasts and musicians, the thermionic valve (electron tube), the sound of a valve amplifier cannot be bettered by that...
| How many different conditions do you reckon may be signalled with just one LED? Two, maybe three? Using this simple circuit, a lot more!
| The conductance tester goes one step further than the usual continuity tester found in so many workshops. It contains a buzzer to indi...
| The circuit presented in this article enables you to build a software-controlled 8-channel analogue switching unit that will be hard to be...
| Visitors to Germany may have seen the world’s largest digital clock which is housed in a 234 metres high transmitter tower on the banks...
| The Maxim ICM7218 display driver interfaces micro- processors to an 8-digit, 7-segment, numeric LED display. Included on chip are two types...
| Strictly speaking, a trinket cannot be functional, but the title of this article is apt. It is a kind of miniature VU meter whose LED...
| Few audio enthusiasts possess, or have access to, equipment required for accurately measuring the performance of a loudspeaker or the...
| A PIR (passive infrared) detector coupled with an electrtc light is now widely used rar intruder protection. PIR detectors are also avail...