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Circuit detectors and sensors based electronics projects like: metal detectors circuits, smoke detectors circuit, water detector circuit, light detector and other based sensors projects.
This LED vumeter is built using LM324 operational amplifiers and some classic electronic components.
Using this circuit diagram can be made an electronic switch that allows actuation of a relay. This control circuit is triggered using a light source which will act a Photoresistor.
The infrared emitter can be used as a control device for the infrared receiver.
It works with two batteries of 1.5 V or a 3 V lithium button cell type.
Circuite electronice Electronic Circuits Design of Electronics Projects
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