Electronics Circuit Diagram

Simple Track Detector Circuit Diagram using NE556 IC. This Track Detector circuit design uses an Infrared LED Emitter and Photo Transistor Detector to sense movement of traffic on a track. The NE556 timer consists of two voltage comparators, a bistable flip-flop, a discharge transistor, and a resistor divider network.

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The following schematic shows the design of an Infrared IR Security Beam Circuit Diagram and PCB Board Design. This circuit design uses an infrared beam to monitor door & passageways or any other area. The kit is built on two separate PCBs – a transmitter PCB and a receiver PCB. The IR LED can be mounted vertically or at right angles to the PCB.

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The following schematic shows the water leak detector circuit diagram designed and produced by OMRON. This water leak detection system automatically shuts off the water supply instantly upon detection of a water leak.

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The following schematic shows the design of a Simple Smoke Sensor Circuit Board using LM1801. This circuit design utilizing two LDRs, one LED, one internal zener supply, two reference voltage outputs.

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The following schematic shows the simple design of a Humidity Sensor Detector Circuit Diagram. Hygrometers are instruments used for measuring relative humidity. Humidity is the amount of water vapor in the air.

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