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Newly Updated Circuit Projects:

Motorcycle Regulator, Rectifier Tester Circuit

Last Updated on May 16, 2026 by Swagatam 1 Comment

The motorcycle regulator, rectifier tester circuit presented here can be used to test a 6-wire shunt type regulator-rectifiers for a 3-phase charging system of motorcycles. These reg./rectifiers (RR-units) are usually sealed with epoxy and it is considered difficult to find out if the unit is faulty or not. Designed and Written by: Abu-Hafss As the […]

Filed Under: Automobile Electronics Tagged With: Motorcycle, Rectifier, Regulator, Tester

How to Make a Car Power Window Controller Circuit

Last Updated on May 16, 2026 by Swagatam 43 Comments

autorollupordownmodul BROKEN

In this article I have explained a car power window controller circuit using a single push button or a couple of push buttons. The idea was requested by Mr. Win. Technical Specifications I’m winantiyo from Indonesia, i’ve read your post in your blog and i’m very like it.i have 2 project: 1. auto roll up power […]

Filed Under: Automobile Electronics Tagged With: Controller, Power, Window

5 Simple Siren Circuits you can Build at Home

Last Updated on May 16, 2026 by Swagatam 12 Comments

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In this post I have explained about a 5 simple siren circuits, using Arduino and also with ordinary components such as transistors and capacitors yet is able to produce an alarm sound at an excruciating level. The idea was contributed by “Abu-Hafss” Deeper in the article we also learn to make an advanced Arduino based […]

Filed Under: Automobile Electronics Tagged With: Build, Circuits, Home, Simple, Siren

Adding a PWM Multi-spark to Automobile Ignition Circuit

Last Updated on May 16, 2026 by Swagatam 13 Comments

pwm 3

The post investigates a simple 2 pin oscillator circuit which may be inserted between the pickup coil and the CDI unit of a vehicle for achieving an induced multi trigger input in response to each signal from the pickup coil coil, this in turn is expected to enhance the sparking ability of the CDI coil. […]

Filed Under: Automobile Electronics Tagged With: Adding, Automobile, Ignition, Multi, PWM, spark

Adjustable CDI Spark Advance/Retard Circuit

Last Updated on May 16, 2026 by Swagatam 66 Comments

advance2Bretard2Bignition2Bcircuit

In this post we’ll learn about a simple circuit which allows a manual adjust feature for the spark timing of a motorcycle’s CDI either to achieve an advance ignition, retarded ignition or simply a normal timed ignitions. After a comprehensive study regarding the subject I was apparently successful in designing this circuit which can be […]

Filed Under: Automobile Electronics Tagged With: Adjustable, Advance, CDI, Retard, spark

Car Blown Brake Light Indicator Circuit to Detect Broken Bulb Filament Tail Light

Last Updated on May 16, 2026 by Swagatam 19 Comments

CARBULBFUSEINDICATOR 1

In this post I have explained a simple fused or blown car brake light indicator circuit using a single IC 555 and a few other passive components. The idea was requested by Mr. Joel Bayongasan Technical Specifications You innovations are great! Thanks for this blog. May I request something please? I was searching for a […]

Filed Under: Automobile Electronics Tagged With: Blown, Brake, Broken, Detect, Indicator, Light

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