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Simple Home Automation Circuits

Last Updated on May 28, 2026 by Swagatam 2 Comments

frequency controlled door lock circuit

In this article I have explained a few useful yet easy to build home automation circuits which will help the user to create automatic electronic systems at home. What is Home Automation Home automation basically means converting many of the manually operated home electrical devices into automatically operated devices, through electronics. Today’s real home automation […]

Filed Under: Home Electrical Circuits Tagged With: Automation, Circuits, Home, Simple

Audible Meditation Timer Circuit

Last Updated on May 24, 2026 by Swagatam 3 Comments

meditation timer block diagram

In this post I will show how to construct a timer circuit for meditation practices which gives out beeping sound between 1 and 9 seconds (user selectable) and this beeping audio can be integrated with your mediation session, we will see how we can integrate the periodic beeping with “mindfulness meditation” as example in later […]

Filed Under: Health related Projects Tagged With: Audible, Meditation, Timer

Circuit Projects for Beginners and School Students

Last Updated on August 28, 2026 by Swagatam 49 Comments

simple LED flashlight

In this article I have explained a compilation of small electronic circuit projects suitable for beginners, young hobbyists, school students, who are new to electronics and are at the initial learning stage. So let us learn in details how simple DIY circuit projects specially suited for newcomers can be built and implemented practically. Simple Adjustable […]

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

LED Oscilloscope Circuit

Last Updated on June 8, 2026 by Swagatam 16 Comments

LED oscilloscope

The simple LED oscilloscope circuit I have explained in this article can be used for analyzing low frequency waveform through a 10 x 10 LED matrix display. Due to the involvement of only 100 LEDs in the display board, the resolution is low, and the waveform display clarity is not so impressive. Yet, this LED […]

Filed Under: Meters and Testers Tagged With: LED, Oscilloscope

Medical Store LED Cross Sign Circuit [Plus Sign]

Last Updated on June 8, 2026 by Swagatam 15 Comments

Running medical sign light

In this post I have explained how to make an interesting yet simple running LED cross sign or plus sign module for displaying in front of medical stores. Nowadays, it is very common to witness illuminated flashing, chasing LED cross signs in front of medical stores, which work like an advertisement board for attracting the […]

Filed Under: Lamps and Lights Tagged With: Cross, LED, Medical, Plus, Sign, Store

Types of Power Amplifier Classes Explained in Simple Words

Last Updated on May 15, 2026 by Swagatam 6 Comments

class A amplifier

In this post I am going to explain power amplifiers and their classification according to their output electrical characters and application. We will be exploring amplifier classes: A, B, AB, C, D, E, F, G, H, I, S and T briefly and yes, that’s a lot of amplifier types that are available in today’s electrical […]

Filed Under: Audio and Amplifier Projects Tagged With: Amplifier, Classes, Explained, Power, Simple, Types

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