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Ultrasonic Fuel Level Indicator Circuit

In this post we learn how to build a simple fuel tank level indicator circuit using Arduino and ultrasonic sensors. In every vehicle the fuel tank is probably the most important part of the entire system, since the vehicle’s operation critically depends on the presence of the tank fuel. This also means that monitoring the … Read moreUltrasonic Fuel Level Indicator Circuit

Motorcycle Button Start Locking Circuit

In this post we discuss how to modify an existing button start system in motorcycles so that it’s disabled as soon as the engine has started and gained the required minimum amount of RPM. The idea was requested by Mr. Jordan Circuit Requirements I just discovered your splendid site/blog with focus on education about electronics. … Read moreMotorcycle Button Start Locking Circuit

Using Single Switch for Fog lamp and DRL Lamp

The post explains an easy method of upgrading your existing car fog lamp switch such that it allows toggling both the fog lamp as well as the DRL lamps alternately, as per the owner’s requirement. The idea was requested by mk karthick. Circuit Objectives Am looking for a circuit which is directly connected to the fog … Read moreUsing Single Switch for Fog lamp and DRL Lamp

GSM Car Ignition and Central Lock Circuit Using Arduino

Mobile screen info for GSM car lock circuit

In this post we are going to construct a GSM based car security system using Arduino, which can lock and unlock car’s ignition system and central lock by sending a password SMS to car from your cellphone By Arduino Guru Car theft can be a heart break; it feels like your loved one got kidnapped. … Read moreGSM Car Ignition and Central Lock Circuit Using Arduino

Car Reverse Parking Sensor Circuit with Alarm

In this post we are going 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, such … Read moreCar Reverse Parking Sensor Circuit with Alarm

Car Tank Water Sensor Circuit

The article explains a simple car tank water sensor alarm circuit using IC 555 and a pulsating signal on the sensing probes to pevent corrosion on the probes. The idea was requested by Mr. Peter. Circuit Objectives and Requirements I couldn’t find how to post a project proposal on your website. May be you can … Read moreCar Tank Water Sensor Circuit