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Newly Updated Circuit Projects:

Automotive Sensor Substitute Circuit Diagram

Last Updated on May 16, 2026 by Swagatam Leave a Comment

This innovative Automotive Sensor Substitute Circuit explained in this article was thoughtfully designed and contributed by one of our passionate readers, Mr. August Peterson, who is an avid electronics enthusiast. It is a great pleasure to feature his creative work on this platform and I extend my heartfelt gratitude for his generous effort in sharing […]

Filed Under: Automobile Electronics Tagged With: Automotive, Sensor, Substitute

Check What’s Behind the Paint of a Used Car

Last Updated on May 16, 2026 by Swagatam Leave a Comment

Laminated iron E core

Some methods to hide a used car’s external deterioration include filling up rust holes, removing collision dents with putty, fiberglass, or epoxy, and painting the car. The outside condition of an automobile is very important to potential used car purchasers due to the high cost of extensive bodywork restoration. Here is a simple circuit concept […]

Filed Under: Automobile Electronics, Sensors and Detectors Tagged With: Behind, Check, Paint, Used

Traffic Light Controller Circuit [Signal Red, Green, Amber]

Last Updated on May 16, 2026 by Swagatam 11 Comments

traffic light signal

A traffic light controller circuit can be used for controlling the sequential illumination of the RED, ORANGE and GREEN traffic signal lamps, by maintaining appropriate delays between the illumination sequence. In real traffic signal light system we all have seen how the red, orange and green lamps switch ON/OFF in sequence with specific amount of […]

Filed Under: Automobile Electronics Tagged With: Amber, Controller, Green, Light, Signal, Traffic

Infrared Car Door Lock Security Circuit

Last Updated on May 16, 2026 by Swagatam Leave a Comment

IR transmitter compressed

In this post I have explained how to build a simple yet foolproof infrared based remote control, which can be used for locking and unlocking any vehicle door through a personal remote handset. The remote controlled vehicle door lock is foolproof since it works only with a specific IR frequency range, and will not respond […]

Filed Under: Automobile Electronics Tagged With: Door, Infrared, Lock, Security

Car Reverse Horn Circuit

Last Updated on May 16, 2026 by Swagatam 2 Comments

reverse horn PCB track

A crucial safety element in cars is the reverse horn, sometimes referred to as the reverse warning device or backup alarm, which emits an auditory signal while the automobile is in reverse. The reverse horn, which is intended to improve pedestrian and occupant safety, generates a unique sound to alert others around that the vehicle […]

Filed Under: Automobile Electronics Tagged With: Horn, Reverse

Vehicle Immobilizer Circuit Explained

Last Updated on May 16, 2026 by Swagatam 9 Comments

CarImmobilzer

If you own a car and still haven’t incorporated any security system in it or perhaps your old security system is out of order, you can quickly opt for a cheap yet effective security option for your car or any vehicle by installing the proposed circuit. It will cost you not more than a dollar. […]

Filed Under: Automobile Electronics Tagged With: Explained, Immobilizer, Vehicle

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