| This circuit was designed to control the underfloor heating pump independently or via the switch in the living room thermostat. The design h...
| This circuit was designed to control the underfloor heating pump independently or via the switch in the living room thermostat. The design h...
| The author was triggered to propose this circuit to Elektor following the publication of “Fun with Fireflies” in the April 2010 edition. The...
| Scope Text is a small circuit based on the ATTiny2313 microprocessor, which can be used to display text on a CRT oscilloscope. The text is s...
| Here are two circuits that make it possible to add up to eight detectors to an existing alarm system without running a single cable. Each tr...
| Until recently, the Philips SAA1064 LED driver IC has been a sort of unofficial standard for driving seven-segment LED displays. It can be u...
| When a switched multiway is used to power a PC, printer, scanner, modem, and so on, all these devices often stay powered, in stand-by, simpl...
| Problem: where’s a cheap and reliable oil dispensing device, please? The author is grateful to MC Jäykät from Finland for the idea to use a...
| compilation of circuits for the odd ‘learn-while-u-tinker’ hour you should be able to claim for yourself this December. Most of the parts us...
| Add more speakersSwitching with relaysPotted-plant batteryScarecrowAcoustic finder for model aircraftAn intercom using six componentsSchrödi...
| Christmas fl asherWater alarmBio - feedbackThirst indicator for house plantsTest beeper for your stereo systemLight dimmer for torchesLEDs s...