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Circuit Projects for Beginners and School Students

Last Updated on January 7, 2026 by Swagatam 49 Comments

simple LED flashlight

In this article I have explained how to build small electronic circuit projects suitable for beginners, young hobbyists, school students, who are new to electronics and are at the initial learning stage. Which Circuit Projects are Suitable for the Beginners? The circuit projects that are small in terms of number of component count, and are […]

Filed Under: Mini Projects Tagged With: Beginners, Projects, School, Students

6 Best Ultrasonic Circuit Projects for Hobbyists and Engineers

Last Updated on September 20, 2025 by Swagatam 119 Comments

555 ultrasonic

In this post I have explained a 6 very useful yet simple ultrasonic transmitter and receiver circuit projects which can used for many crucial applications, such as ultrasonic remote control, burglar alarms, electronic door locks, and for listening to frequencies in the ultrasonic range which are normally inaudible to human ears. Introduction Many commercial ultrasonic […]

Filed Under: Wireless Circuits Tagged With: Best, Engineers, Hobbyists, Projects, Ultrasonic

50 Best Arduino Projects for Final Year Engineering Students

Last Updated on September 9, 2025 by Swagatam 2 Comments

budding engineers

In this post we sort out a list of most popular, 50 hand-picked and best engineering circuit Arduino projects specially created for all aspiring engineers for their final year project exhibition. The circuit projects include the latest and advanced microprocessor Arduino based designs with full program code. The list also includes projects using discrete parts […]

Filed Under: Arduino Projects Tagged With: Arduino, Best, Engineering, Final, Projects, Year

12 Simple IC 4093 Circuits and Projects Explained

Last Updated on January 18, 2025 by Swagatam 10 Comments

4093 piezo driver circuit

The 4093 is a 14-pin package containing four positive-logic, 2-input NAND Schmitt trigger gates as shown in the following figure. It is possible to operate the four NAND gates separately or collectively. The individual logic gates of the IC 4093 works in the following manner. As you can see each gate has two inputs (A […]

Filed Under: Mini Projects Tagged With: 4093, Circuits, Explained, Projects, Simple

Simple Hobby Circuit Projects

Last Updated on August 6, 2024 by Swagatam 201 Comments

40 Watt Fluorescent Lamp Inverter Circuit Diagram2C Image

A few of the interesting and useful hobby electronic circuit diagrams already published in this blog have been selected and compiled here for your quick reference and understanding. What is a Hobby Circuit? A hobby circuit is an electronic circuit project specially designed to suit new hobbyists. These circuits are mostly small and easy to […]

Filed Under: Mini Projects Tagged With: Hobby, Projects, Simple

Basic Op Amp Circuits and Projects

Last Updated on January 3, 2024 by Swagatam 20 Comments

op amp integrator equation relationship

In the following article I have explained op amp basic application circuits and projects, with equations, for solving their specific component values. Op-amps (operational amplifiers) are a specialized type of integrated circuit that include a directly-coupled, high-gain amplifier with an overall response characteristics adjusted by a feedback. The op-amp derives its name from the fact […]

Filed Under: Mini Projects Tagged With: Basic, Circuits, Projects

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