Posts by Fariha Zahid

A power supply is a device that converts one type of electrical power to another, it may also convert a different form of energy into electr…

In this tutorial, we are going to demonstrate a TRIAC or SCR Tester circuit. TRIAC or SCR is a useful component even though it is not used i…

An electronic metronome is a device that is used by musicians to practice playing with a regular pulse. It helps them to maintain the tempo…

In this tutorial, we are going to demonstrate one of the easiest DIY projects with a simple design and low cost. A 15V DC Power Supply using…

In this tutorial, we are going to demonstrate how to make a Doorbell circuit for your home. This project is beginner-friendly because it is…

In this tutorial, we are making an easy project of 12V, 9V, and 6V Automatic battery chargers. This circuit can charge batteries of three di…

Almost all the large scale manufacturing companies are automated and those industries that are mainly working on fluids or chemicals have to…

There are times when you either forget to close the car’s door or you don’t close it properly, this can be both harmful or dangerous for you…

In this tutorial, we are making a Long-Range Arduino Based Walkie Talkie using nRF24L01. although this is the era of 5G and smartphones and…

In this tutorial, we are going to make a project of AC Fan speed control using Arduino and TRIAC. Turning any electronic appliance on and of…

In this tutorial, we are making a project of a simple car reverse horn circuit. the purpose of this circuit is to produce a musical horn whe…

Here we are demonstrating a very useful project of a contactless mains failure alarm circuit. this circuit will detect wirelessly the absenc…

In this tutorial, we are making a contactless AC mains detector relay switch circuit. When an AC voltage is present in mains supply lines th…