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Sensor circuit diagrams
September 27, 2010
It sounds rather mysterious: a switch that is controlled by its ambient temperature. All without the touch of a human hand, except for when you’re building this sort of electronic thermostat. There are a lot... [more]
circuit from:http://www.extremecircuits.net/2010/04/temperature-controlled-switch.html
September 27, 2010
Capacitive touch sensors are based on the electrical capacitance of the human body. When, for example, a finger comes close to the sensor, it creates a capacitance to Earth with a value of 30 to... [more]
circuit from:http://www.extremecircuits.net/2010/05/simple-capacitive-touch-sensor.html
September 27, 2010
This circuit was intended to activate a relay by means of a hand clap. Further claps will turn-off the relay. An interesting and unusual feature of this project is the 3V battery operation. The circuit's... [more]
circuit from:http://www.extremecircuits.net/2009/07/clap-sensitive-on-off-relay.html
September 27, 2010
Sure, listening to VHF FM has great advantages over MW/LW AM from the old days — now we have bright stereo free from interference, fading and noise! However, your FM radio will no longer predict... [more]
circuit from:http://www.extremecircuits.net/2010/05/thunderstorm-predictor.html
July 3, 2010
This is a very interesting project with many practical applications in security and alarm systems for homes, shops and cars. It consists of a set of ultrasonic receiver and transmitter which operate at the same... [more]
July 3, 2010
A touch switch is a switch that is turned on and off by touching a wire contact, instead of flicking a lever like a regular switch. Touch switches have no mechanical parts to wear out,... [more]
July 3, 2010
A touch switch is an electronic device that enables us to control a circuit by simply touching a sensor. Smart Kit 1005 is a very easy project to built and will make you the proud... [more]
June 26, 2010
Here is another equally cool low voltage alarm circuit for your glider receiver battery. [more]
June 26, 2010
Flying hand launch gliders means living with small capacity receiver NiCad battery packs. These small packs are light, but have the distinct disadvantage of rapidly depleting. You can carefully time your flights, but you end... [more]
June 23, 2010
This project will let you make a switch that will be activated by light falling on a sensor. It is a very useful device and can be used in automatism’s, security systems, counters, remote controls... [more]
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