Car LED Voltmeter Circuit using IC LM324 is useful project to check car battery voltage. LEDs show different voltage which is easy to see battery condition. Main part are LM324 op-amp which act like voltage checker. Voltmeter measures voltage between two points. This circuit is with LED voltmeter with IC LM324. The simple way is […]
Automobile Circuits
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Smart Vehicle Headlight Brightness Controller Circuit
Smart Vehicle Headlight Brightness Controller Circuit is a cool auto system. It changes headlight brightness auto by checking outside light. It helps driver see better and safe at night or in tunnel. Circuit uses photo-transistor, potentiometer, diode, relay and audio transistor to check light and switch high and low beam easily. Circuit Working: Parts List: […]
Building an FM Transmitter Circuit for Car Stereo
Building an FM Transmitter Circuit for Car Stereo is easy way to play music from phone, MP3 or Bluetooth on car FM radio. It sends sound on FM frequency and car radio catches it like normal station. Circuit is simple to use and is good for playing music or podcast in car without special stereo […]
Simple Car Headlight Timer Circuit using Transistors
Simple Car Headlight Timer Circuit using Transistors is cool design. It keeps car headlights ON for 1.5 minutes after engine is OFF. It is very useful in dark place which gives light for short time. Circuit uses easy parts like transistors, resistors, capacitor, relay and few more. These all work together for timing. This article […]
Car Reverse Horn with Musical Tone Circuit
Car Reverse Horn with Musical Tone Circuit is easy and fun way to change beep sound to nice tune. Main part of these circuit is IC UM66 which makes sweet melody. Another IC is 7805 which drop car battery voltage to 5V. Some more parts are also used and they help circuit work good and […]
DIY Parking Sensor Circuit using IC 555 and IC LM324
DIY Parking Sensor Circuit using IC 555 and IC LM324 is smart device as it helps driver while parking a car. It finds nearby things that can block the way. It has two parts: Transmitter Circuit: which sends IR light using IR LED around the car. Receiver Circuit: which gets back the IR light if […]