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Hobby Circuits

Smart Headlight Automation Circuit using IC 555

Last updated on 15 June 2026 by Admin-Lavi Leave a Comment

Smart Headlight Automation Circuit using IC 555 turns ON the car light by itself when dark, it uses LDR to check light outside and 555 IC decide when light turns ON. Also, this circuit saves power, make car light work at right time and help driver be safe at night. Circuit Working: Parts List: Components […]

Filed Under: 555 Timer Projects, Automation Circuits, Automobile Circuits, Hobby Circuits, LDR Circuits

Simple Timer Based Clock Ticking Sound Circuit

Last updated on 15 June 2026 by Admin-Lavi Leave a Comment

This article is about Simple Timer Based Clock Ticking Sound Circuit using IC 555, as 555 in astable mode make repeat signal like clock tick.; also, signal goes to small speaker and make ticking sound. Furthermore, circuit is good for beginner, easy to learn 555 timer and sound making. Circuit Working: Parts List: Components Values […]

Filed Under: 555 Timer Projects, Hobby Circuits, Mini Projects, Timer Circuits

Building an Auto Street Light Circuit using IC 741 and Transistor

Last updated on 14 June 2026 by Admin-Lavi Leave a Comment

This post talks about Building an Auto Street Light Circuit using IC 741 and Transistor, as it turns ON at night and OFF at day. Furthermore, this circuit is simple and saves energy and it uses relay to control light, LDR to sense light, BC547 transistor drives relay and IC 741 works as a comparator. […]

Filed Under: Automation Circuits, Hobby Circuits, LDR Circuits, LED and Lamps, Sensors and Detectors, Transistor Circuits

Simple Flame Sensor Circuit using Arduino

Last updated on 14 June 2026 by Admin-Lavi Leave a Comment

Flame sensor is very important for many uses like industry machines, safety check and fire alarm. So in this post for Simple Flame Sensor Circuit using Arduino shows how to connect flame sensor to Arduino to find fire; also this project is cheap and works well for real-life fire detection. Arduino Code: Code for Flame […]

Filed Under: Arduino Projects, Hobby Circuits, Mini Projects, Security and Protection, Sensors and Detectors

Voltage Level Monitoring Circuit using IC LM339

Last updated on 14 June 2026 by Admin-Lavi Leave a Comment

Voltage Level Monitoring Circuit using IC LM339 very important in modern electronics, as it helps system work correct, so to see voltage in real time we need to use voltage level readout circuit. Also, this circuit uses LM339 comparator IC for accurate voltage check and stable reading. Main parts are LEDs that show voltage level […]

Filed Under: Hobby Circuits, Indicator Circuits, LED and Lamps

Battery Charger Circuit using IC TP5000

Last updated on 14 June 2026 by Admin-Lavi Leave a Comment

This Battery Charger Circuit using IC TP5000 charges lithium and LiFePO4 battery, also it uses TP5000 IC and this IC work as buck converter and gives fast charge with no over heat. Furthermore, circuit is small, simple and safe for battery. Circuit Working: Parts List: Components Values Quantity Resistors 1k 1/4 watt 1 0Ω 1/4 […]

Filed Under: Battery Charger Circuits, Hobby Circuits

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