| Every audiophile has their own preferences for headphones. Some like closed-back headphones for good isolation from the outside world noise,...
All items tagged with Switch and phone (13)
| Laird’s BL600 Bluetooth communication module, for which Elektor offers the famous e-BoB breakout board, is used here in a complete new and a...
| A low-cost Android phone forms an excellent basis for a high-end user interface or remote control for a microcontroller circuit. In this art...
| This circuit can be called using your mobile or a regular telephone set (with DTMF keys) and after passing some procedures, you can control...
| More and more ISPs, are offering subscribers an extra phone line using Voice over IP (VoIP) on top of their Internet access.The project desc...
| Many of you will have an old mobile phone gathering dust. The circuit shown in this article gives the old mobile a new lease of life, enabli...
| The directional microphone published in the July-August 2002 issue of Elektor Electronics does its job, but does not have the right directio...
| In spite of alternatives based around the Internet, SMS and e-mail, the good old DTMF remote switch still has its place, and, thanks to the...
| To many hi-fi enthusiasts and musicians, the thermionic valve (electron tube), the sound of a valve amplifier cannot be bettered by that...
| A switch, based on a PIC(1) RISC(2) processor, is described that enables mains-operated equipment, such as a computer, a coffee maker, or...