Simple Car Headlight Timer Circuit using Transistors is cool design which keeps car headlights ON for 1.5 minutes after engine is OFF. Also, 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 and these all work together for timing. […]
Hobby Circuits
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; its main part is IC UM66 which makes sweet melody. Also, the 7805 IC reduces the car battery voltage to 5V; additional components support the circuit and help it operate reliably and efficiently. Furthermore, it is […]
Car Turn Signal Circuit with Chasing Effect
Car Turn Signal Circuit with Chasing Effect is important project for electronic, in which it shows if driver turn left or right; also this circuit make lights blink one by one like in new cars. Moreover, it uses two main parts: 555 timer IC and CD 4017 counter IC. First IC1 make blinking signal and […]
3 LEDs Battery Status Indicator Circuit
To begin with, battery status circuit is very useful in electronics systems, it helps keep battery healthy and working good in devices. 3 LEDs Battery Status Indicator Circuit is simple but works well and it shows battery voltage using three lights and each LED shows different voltage. Also, we can see if battery is low, […]
Car Stereo Amplifier Circuit using IC TDA1553
Car stereo amplifier is very important, as it makes sound signal strong and give power to speaker so they work good. Also, the IC TDA1553 chip gives this car stereo amplifier circuit strong Class B amplification; designers developed this compact chip for car radios and it performs well while requiring only a few external components. […]
Measuring RPM with a Tachometer Circuit
A tachometer measures how fast a motor shaft or disk rotates and it displays the speed in RPM (revolutions per minute). This article for Measuring RPM with a Tachometer Circuit teaches us how simple tachometer circuit made, how it work and how to build it. Also, tachometers play an important role in industries, automobiles and […]