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Search Results for: infrared

Infrared Intruder Alarm Circuit using Photodiodes

Last Updated on May 12, 2022 by Swagatam 2 Comments

The post explains a simple infrared intruder alarm circuit using an infrared transmitter and an infrared receiver module. The transmitter and the receiver photo diodes used in the two modules […]

Filed Under: Infrared (IR), Security and Alarm

Infrared Controlled Car Door Lock

Last Updated on April 18, 2021 by Swagatam Leave a Comment

In this post we will learn how to build a simple yet foolproof infrared based remote control, which can be used for locking and unlocking any vehicle door through a […]



Filed Under: Car and Motorcycle

Visible Light Communication Circuit [using InfraRed]

Last Updated on December 18, 2021 by Swagatam 2 Comments

You can use this simple visible light communication circuit to send audio and digital information through infrared light, beyond a mile away, with extreme precision. By Sunil Rao The main […]

Filed Under: Transmitter Circuits

How Contactless Infrared Thermometers Work – How to Make One

Last Updated on February 26, 2022 by Swagatam 4 Comments

In this post we will learn the basic working concept of thermal scanners or contactless IR thermometers, and also learn how to make a practical DIY prototype of the unit […]

Filed Under: Health Related, How to Articles, Infrared (IR), PIR (Passive Infrared), Sensors and Detectors

Remote Control Infrared Tester Circuit

Last Updated on January 14, 2023 by Swagatam 12 Comments

We all use remote control handsets for controlling various household devices such as TV, AC, Music systems, curtains etc, and sometimes we seem to have problems with these devices, or […]

Filed Under: 741 IC Circuits, Home Electrical Circuits, Infrared (IR), Mini Projects, Remote Control

Contactless Sensors – Infrared, Temperature/Humidity, Capacitive, Light

Last Updated on May 8, 2022 by Swagatam 9 Comments

The article discusses a few highly advanced contactles sensors such as infrared sensor, temperature sensor, humidity sensor, light sensor which can be used for crucial and sensitive industrial applications, and […]

Filed Under: Infrared (IR), Sensors and Detectors

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