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New Circuit Projects

3 Glittering LED Christmas Tree Light Circuits Explored

Last Updated on January 20, 2025 by Swagatam 34 Comments

Flasher4060 1 compressed

In this post we present 3 circuit ideas for creating beautiful Christmas tree light decorations. The first idea explains a transistorized flashing blinking LED string light which can be mounted on a Christmas tree. The second circuit diagram describes an LED light effect generator which can be also installed over a real Christmas tree for […]

Filed Under: Mini Projects Tagged With: Christmas, Circuits, Glittering, LED, Light, Tree

Simple Timer Circuit Using IC 4060

Last Updated on January 2, 2024 by Swagatam 122 Comments

simple4060timercircuit

In this post I have explained how to build a simple yet accurate timer circuit using the IC 4060 and some ordinary passive components. Main Advantage of using IC 4060 as the Timer IC I have already discussed this IC comprehensively in one of my previous articles, everything regarding its pin outs have been discussed […]

Filed Under: Timer and Delay Relay Tagged With: 4060, Simple, Timer

Adjustable Timer Circuit Using IC 555

Last Updated on June 25, 2022 by Swagatam 163 Comments

SimpleTimer

IC 555 adjustable timer explained here can be adjusted from any time delay 1 second to 3 hours for operating any load through a relay control The produced time delay is fully adjustable and the user has the freedom to set the time period as desired. There are many ways of making simple timer circuits […]

Filed Under: Timer and Delay Relay Tagged With: 555, Adjustable, Timer

Simple Mobile Phone Detector Circuit [Tested]

Last Updated on December 13, 2024 by Swagatam 162 Comments

RFsensor

A cellphone or mobile phone detector is actually a high gain op amp amplifier which detects slightest of RF disturbance from a mobile phone, and illuminates an LED. Mobile phones today being the major generator of RF interference is easily picked up by this circuit and can be seen through an LED illumination at the […]

Filed Under: Sensors and Detectors Tagged With: Detector, Mobile, Phone, Simple, Tested

GSM Based Cell Phone Remote Control Switch Circuit

Last Updated on August 12, 2024 by Swagatam 184 Comments

This circuit will allow you to control any electrical gadget from any part of the world through your cellphone remotely, that too without spending a penny for the individual commands. Circuit Concept Whether it’s you vehicle, your basement door, your mansion gate or simply the air conditioner of your house, everything can now be switched […]

Filed Under: Remote Control Circuits Tagged With: Based, Cell, Control, GSM, Phone, Remote

AC Motor Speed Controller Circuits using Back EMF

Last Updated on May 19, 2025 by Swagatam 52 Comments

drill speed controller circuit

In this post I have explained a few circuit diagrams for building AC motor speed controller circuits using back EMF concept. Working Principle of AC Motors So now, all those home type appliances like electric drill machines, sander machines, sewing machines, food mixer machines, etc. they all are mostly using that AC motor which is […]

Filed Under: Motor Controller Tagged With: AC, Back, Circuits, Controller, Motor, Speed

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