| Remote control using mobile phones and SMS (Text Messaging) is in great demand but many systems on sale suffer from imperfections. The ingen...
All items tagged with Gerber and phone (31)
| 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...
| Some audio amplifier designs incorporate ‘loudness compensation’ which boosts the bass and treble frequencies at low volume settings so that...
| The biggest obstacle to reusing old mobile phone parts is usually the lack of datasheets. Undeterred the author has managed to work out how...
| There are still a lot of hobbyists who enjoy making high-quality live audio recordings of concerts, interviews, radio broadcasts, natural so...
| Galvanic isolation is a special feature of this telephone amplifier, which includes a line output connection for a hi-fi system.Although in...
| If you have a fit looking at your monthly phone bill you might want to know who’s on the phone all the time. Also, you may want to start exe...
| When the ISM frequency band was made available in Europe for audio applications, Circuit Design, a manufacturer of professional RF modules,...
| Bluetooth is a huge commercial success but so far hobbyists and lab workers have been barred from access to ready-made modules for this wond...