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Circuit detectors and sensors based electronics projects

Circuit detectors and sensors based electronics projects like: metal detectors circuits, smoke detectors circuit, water detector circuit, light detector and other based sensors projects.

Liquid detector electronic project circuit diagram using transistors

Using this circuit diagram can be designed a very simple liquid detector using common electronic components. The liquid detector may operate an active buzzer, to make a sound when is reached a certain level of water.

Circuit Diagram: 
Liquid detector electronic project circuit diagram using transistors

Vibration detector motion electronic project using bipolar transistors

This vibration detector motion) is constructed using bipolar transistors and consumes only 0.3 mA in standby.

Circuit Diagram: 
Vibration detector motion electronic project using bipolar transistors

Simple electronic thermometer for heat sink

A very simple electronic thermometer can be designed using electronic diagram below. Thermometer displays temperature radiator not only on two displays, but also provides an output for switching can be used to connect a fan.
This circuit consists of four parts: a reference voltage source IC1, IC4 sensor, IC2 and IC3 the display, the switching IC5.

Circuit Diagram: 
electronic thermometer for heat sink circuit diagram

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