Imagine checking car wires without guessing or risk, then this Automotive Electrical Tester Circuit using 555 IC makes it possible, which shows polarity instantly with LED lights. The circuit uses a 555 timer IC, so it becomes simple and is with low cost, also it can show positive or negative voltage by using two LEDs […]
Automobile Circuits
Car Engine Heat Detector Circuit with Sound Alert
Like in previous post on Automobile Engine Overheat Alert Circuit using LED, where driver gets indication through LED, but in this circuit, driver gets alert through sound and this sound comes from IC 555, which works as astable multivibrator and generates sound signal, also we can adjust temperature level for alarm using variable resistor which […]
Automobile Engine Overheat Alert Circuit using LED
Many a times, automobile engine heat problem has become very common, engine gets too hot and driver is not aware of it early, because of this, engine damage can happen and repair cost becomes high, so we need simple system which can give early warning. This project shows a small and low cost heat alert […]
Arduino Based Smart Car Parking Sensor Circuit
Today parking is big problem everywhere, so here, parking become easy with this Arduino idea; we made small Arduino Based Smart Car Parking Sensor Circuit. This system detects car and display free or busy slot automatic, then Arduino brain tell LCD which slot is free. Therefore, there is no confusion, no searching, just smart slot […]
Arduino GPS Based Speedometer Circuit
Anyone want to check speed of bike, car or any moving vehicle? So with Arduino and GPS module we can make small but cheap DIY speedometer, as this project for Arduino GPS Based Speedometer Circuit is easy and fun; also it shows real-time speed on LCD using GPS satellite data. This project requires only an […]
12V to 24V DC Voltage Converter Circuit using IC LM324
DC to DC converter is good circuit, as it can make voltage up or down for many use. In this article, we discuss a 12V to 24V DC Voltage Converter Circuit using the LM324 IC; also this circuit doubles the input voltage by using a boost converter and an oscillator, but however, the load current […]





