The amplifier is based on an integrated circuit TDA2822M. With this circuit can be built...
A fingerprint door lock, and the only thing that`s stopping me from purchasing the components is...
This generally results in a square wave if the frequency of oscillation is low enough relative to...
Here is a project of a simple touch switch circuit. This circuit and can also be used to activate...
This circuit provides you with wireless audio and visual transmission to a TV. The TV acts as a...
This circuit features automatic Exit and Entry delays - timed bell cut-off - and system reset. It...
This circuit uses low-voltage AC to drive a string of 50 or so bi-color LEDs (two LEDs connected...
As shown in the circuit diagram of the device is looking for 555 cars, including a transmitter...