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Newly Updated Circuit Projects:

Programmable Temperature Controller Circuit with Timer

Last Updated on January 8, 2024 by Swagatam 3 Comments

programmable temperature controller circuit

Here I have explained about a circuit configuration which produces adjustable sequential timing outputs for controlling a heater device through a simultaneously sequencing temperature controller circuit which can be also pre-programmed for acquiring the desired temperature levels across the sequencing time slots. The idea was requested by Mr. Carlos Technical Specifications I’m Carlos and I […]

Filed Under: Temperature Controllers, Timer and Delay Relay Tagged With: Controller, Programmable, Temperature, Timer

2 Useful Energy Saver Solder Iron Station Circuits

Last Updated on January 19, 2025 by Swagatam 23 Comments

In this post I have explained how to build a energy efficient soldering iron station circuit for achieving maximum power saving from the unit, by ensuring that it is automatically switched OFF when not being used for sometime. Written and Submitted By: Abu-Hafss DESIGN#1: OBJECTIVE To design a circuit for solder iron which would not […]

Filed Under: Temperature Controllers Tagged With: Energy, Iron, Saver, Solder, Station, Useful

Key Finder or Pet Tracker Circuit

Last Updated on August 30, 2019 by Swagatam 69 Comments

Rx

Pets and kids (under 4) have one thing in common, they are curious by nature and love venturing into unknown zones ending up in some sort of mess or trouble. Pet or kid tracker equipment which are quite similar to a key finder circuit were specifically designed for solving this issue, here I have explained […]

Filed Under: Security and Alarm Tagged With: Finder, Tracker

Electronic Component Buying Guide for New Hobbyists

Last Updated on May 17, 2026 by Swagatam 8 Comments

buy component

Are you a beginner to electronics? Then here are few guidelines which might help you to buy some really useful components, so that you are always for an electronic and are never short of some crucial component.. OBJECTIVE: Not only for beginners, this will also help other hobbyists to buy some most commonly used components. […]

Filed Under: Datasheets and Components Tagged With: Buying, Component, Electronic, Guide, Hobbyists

Compatible LED Tube Light Circuit for Standard Ballast Fixtures

Last Updated on June 1, 2026 by Swagatam 9 Comments

ftl fixture wiring

In this article we will study a simple LED tube light circuit which could be directly replaced with faulty 40 watt T17 fluorescent tubes and fitted directly on the existing fixture. Thus the circuit is compatible with all standard iron ballast fixture assemblies. How Conventional Fixtures are Wired As shown in the below diagram, traditional […]

Filed Under: Lamps and Lights Tagged With: Ballast, Compatible, LED, Light, Standard, Tube

Cell Phone Triggered Night Lamp Circuit

Last Updated on June 20, 2019 by Swagatam 7 Comments

rf detector

Feeling difficult to grope for a light switch in deep sleep when someone calls you at night? Then may be this cellphone triggered RF night lamp circuit can solve your problem….This is a very simple basic circuit and is easy to construct compared to other online available circuits which switches on a relay when it […]

Filed Under: Wireless Circuits Tagged With: Cell, Lamp, Night, Phone, Triggered

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