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Home Electrical Circuits

Simple Home Automation Circuits

Last Updated on January 1, 2024 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

Freezerless Refrigerator Circuit Diagram Explained

Last Updated on January 2, 2023 by Swagatam 4 Comments

single door refrigerator circuit

Existing frost free double door refrigerators function with the help of defrost timer and defrost heater for automatic defrosting. The objective of my circuit is to convert the existing refrigerator to one, without freezer (freezerless) Written and Submitted By: Subramanian. C.N. My circuit modifies the existing circuit of my refrigerator, by replacing the existing defrost […]

Filed Under: Home Electrical Circuits

Letter Box Open Indicator Circuit

Last Updated on January 1, 2024 by Swagatam 16 Comments

letter box open LED indicator

In this post I have explained how to build a letter box open indicator circuit, which indicates through an LED if the letter box had been opened either by the postman, or by somebody else! The idea was requested by Mr. Bill. I wonder if you could help me.I want to make an LED indicator […]

Filed Under: Home Electrical Circuits

Two Tone Door Bell Circuit

Last Updated on November 15, 2023 by Swagatam Leave a Comment

two tone door bell circuit compressed

The electronic 2 tone door bell circuit is designed around the popular IC 555. The IC 555 is extensively applied in numerous varieties of timers and also as a basic oscillator circuit. In this particular project both the timer and the oscillator functions of the IC are utilized. As soon as the indicated push-button is […]

Filed Under: Home Electrical Circuits, Audio and Amplifier Projects

Pressure Cooker Whistle Counter Circuit

Last Updated on January 1, 2024 by Swagatam 36 Comments

pressure cooker whistle

This circuit is designed to sense the whistles from a pressure cooker and count the number over a digital display. The system relieves the user from the stress of constantly monitoring the cooker and from manually counting the whistles. The idea was requested by Mr. P.K. Bajpai Design Concept In many of the Asian countries […]

Filed Under: Home Electrical Circuits

How to Build a Simple Cloth Dryer for Rainy Season

Last Updated on January 2, 2024 by Swagatam 12 Comments

cloth1

In this post I have explained a simple homemade electric cloth dryer circuit using iron heater coil assembly which can be used for drying clothes at home during rainy season or overcast conditions. The idea was requested by Mr. Nelson. Circuit Objectives and Requirements I have read through some of the topics explained at your […]

Filed Under: Home Electrical Circuits

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