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Automobile Electronics

Wireless Helmet Mounted Brake Light Circuit

Last Updated on May 16, 2026 by Swagatam 106 Comments

In this post I have explained an innovative wireless LED brake light circuit which can be attached to a biker’s helmet. The LEDs attached with the helmet circuit illuminates in response to the motorcycle braking  generating an enhanced brake light effect from the user’s helmet. The idea was requested by Mr. Bugoy. Technical Specifications Good […]

Filed Under: Automobile Electronics Tagged With: Brake, Helmet, Light, Mounted, Wireless

Make this Electric Scooter/Rickshaw Circuit

Last Updated on May 16, 2026 by Swagatam 47 Comments

electric2Bscooter

In this article I have explained a simple electric scooter circuit design which can be also modified to make an electric auto-rickshaw. The idea was requested by Mr. Steve. The Circuit  Request I was lucky enough to find your blog, really amazing stuff that you’ve managed to design. I’m looking for a DC to DC […]

Filed Under: Automobile Electronics Tagged With: Electric, Rickshaw, Scooter

Customizing Car Side Marker Lights to Flashing Side Markers

Last Updated on May 16, 2026 by Swagatam 32 Comments

240SXDiagram

In this article I have explained a car side marker modification which enables it to respond to the existing turn signal pulses and flash in tandem with the turn signal flashing. The idea was requested by Mr. Jerry Klein. Technical Specifications I have a 1990 automobile which I believe does not have very sophisticated circuitry […]

Filed Under: Automobile Electronics Tagged With: Customizing, Flashing, Lights, Marker, Markers, Side

CDI Tester Circuit for Automobiles

Last Updated on May 16, 2026 by Swagatam 49 Comments

SparkGap

The first design below shows a simple workbench setup for testing all types CDI circuits. It uses a capacitive discharge ignition circuit along with a CDI coil to implement the testing procedure. Audio/Video Representation The circuit does not require any separate oscillator, rather the 100Hz from the bridge rectifier itself works like a pulsed trigger […]

Filed Under: Automobile Electronics Tagged With: Automobiles, CDI, 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

Car Reverse Parking Sensor Circuit with Alarm

Last Updated on May 16, 2026 by Swagatam 3 Comments

img 20170706 035209 2

In this post I will show how to construct a car reverse parking sensor alarm circuit using arduino, ultrasonic sensor and 2.4 GHz transceiver module. This project can be add-on feature for your car if it doesn’t sport a build-in parking sensors. Introduction The proposed project has similar functionality as traditional car parking sensor has, […]

Filed Under: Arduino Projects, Automobile Electronics Tagged With: Alarm, Parking, Reverse, Sensor

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