This circuit, enclosed in a small plastic box, can be placed into a bag or handbag. A small magnet is placed close to the reed switch and co...
Rabu, 26 Agustus 2009
A Variable DC Power Supply is one of the most useful tools on the electronics hobbyist's workbench. This circuit is not an absolute nove...
This circuit has been designed to provide a clearly visible light, formed by 13 high efficiency flashing LEDs arranged in a pseudo-rotating ...
Selasa, 25 Agustus 2009
This circuit was developed since a number of visitors of this website requested a timer capable of emitting a beep after one, two, three min...
These units can be useful as a short-range, single-channel remote-control. When the pushbutton in the transmitter circuit is briefly activat...
The purpose of this circuit is to animate shop-windows by means of a capacitive sensor placed behind a post-card-like banner. The card is pl...
Senin, 24 Agustus 2009
A blinking arrow can be a very attractive gadget, suitable for many indication purposes. This circuit provides a bar-mode sequencer driving ...
