More about LED (792)

1-06-1998 | The conductance tester goes one step further than the usual continuity tester found in so many workshops. It contains a buzzer to indi...

1-06-1998 | The circuit presented in this article enables you to build a software-controlled 8-channel analogue switching unit that will be hard to be...

1-05-1998 | 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...

1-05-1998 | The Maxim ICM7218 display driver interfaces micro- processors to an 8-digit, 7-segment, numeric LED display. Included on chip are two types...

1-02-1998 | 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...

1-01-1998 | Few audio enthusiasts possess, or have access to, equipment required for accurately measuring the performance of a loudspeaker or the...

1-12-1997 | A PIR (passive infrared) detector coupled with an electrtc light is now widely used rar intruder protection. PIR detectors are also avail...

1-12-1997 | Pit your reaction and coordination skills against an opponent with this electronic push-button game. The game is intended for two players (...

1-12-1997 | The microcontroller-driven light barrier operates with two infra-red senders which, if set up correctly provide a measure of directivity.

1-11-1997 | The measurement and control of the moisture content of gases, such as the atmosphere around us, is an integral part of many industries,...