| An extremely popular programmer for the PIC16C84 microcontroller has already appeared in Elektor Electronics (Summer Circuits, 1998): that d...
| An extremely popular programmer for the PIC16C84 microcontroller has already appeared in Elektor Electronics (Summer Circuits, 1998): that d...
| This circuit has been designed to complement the ‘Simple IR Transmitter’ and to decode its transmitted signals. The similarity to the transm...
| This circuit uses just two standard logic ICs which, with the accompanying receiver, forms a four-channel remote control and has been design...
| Nearly always when a remote control doesn’t work, the underlying problem is elementary: the unit does not emit light. The cause may be dry s...
| A darkroom timer is not such a complicated device: you can easily build one yourself using a microcontroller.Although previous darkroom time...
| This pulse generator, which can be programmed using Visual Basic 5.0, employs the simplest imaginable hardware but offers capabilities that...
| After one too many flooded basements, the author of this design was fed up. The mechanical float switch for the sump pump, which pumps the w...
| This circuit provides a simple means to determine the voltage of a low-impedance voltage source. It works as follows. P1, which is a 1-W pot...
| Using a Power-FET it is possible to build a very simple touch dimmer for low voltage lamps. Two drawing pins are used here as the touch cont...
| This simple circuit helps you sniff out RF radiation leaking from your transmitter, improper joints, a broken cable or equipment with poor R...