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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

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

433 MHz Remote Infrared Wireless Alarm

Last Updated on August 2, 2019 by Swagatam 6 Comments

A simple infrared wireless alarm circuit can be built using an 433 MHz RF remote control unit a TSOP based IR sensor, let’s learn the procedures in detail. In a […]

Filed Under: Infrared (IR), Remote Control, Security and Alarm



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