In this post I have explained a simple water heater alarm circuit which may be used as a safety device for getting indications regarding the switched position of a water heater or a geyser through intermittent buzzer actuation. The idea was requested by Mr. Mathew. Technical Specifications To be frank i am new to your […]
Newly Updated Circuit Projects:
Simple Thermostat Circuit Using Transistors
The electronic thermostat explained here can be used to control the room temperature by appropriately switching (turning on and off) a heating device. By: R.K. Singh Operational details of electronic thermostat The circuit employs a thermistor NTC (negative temperature coefficient) as the sensor device. – As long as the ambient temperature stays higher than the […]
Illuminated Crosswalk Safety Light Circuit
In this article I have explained a simple illuminated crosswalk safety light circuit for ensuring a safe walking passage for the user amidst heavy traffic. The idea was requested by Mr. John. Circuit Objectives and Requirements I recently came upon your website while researching circuits for a hobby project i’m working on. I certainly admire […]
How to Build a Simple Cloth Dryer for Rainy Season
In this post I have explained a simple homemade electric cloth dryer circuit using iron heater coil assembly which can be used for drying clothes at home during rainy season or overcast conditions. The idea was requested by Mr. Nelson. Circuit Objectives and Requirements I have read through some of the topics explained at your […]
Check What’s Behind the Paint of a Used Car
Some methods to hide a used car’s external deterioration include filling up rust holes, removing collision dents with putty, fiberglass, or epoxy, and painting the car. The outside condition of an automobile is very important to potential used car purchasers due to the high cost of extensive bodywork restoration. Here is a simple circuit concept […]
Blinking LED Bow Tie Circuit
In this article I have explained how to build an LED bow tie circuit which will activate and blink a few LED lights stuck on your bow tie in response to your voice sound. It means, the LED lights on your bow tie will flash and blink, whenever you speak, creating a very eye catching […]





