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Sensors

Smart Bathroom Exhaust Fan Controller Circuit with Sensors

Last Updated on May 14, 2026 by Swagatam 23 Comments

So here we are now making one automatic smart exhaust fan controller system using Arduino UNO which will work for three bathrooms that are all connected to a single ventilation pipe and one common exhaust fan. This whole project is going to be based on PIR sensors for human detection, VOC sensors for odor detection […]

Filed Under: Arduino Projects, Sensors and Detectors Tagged With: Bathroom, Controller, Exhaust, Sensors, Smart

How to Use Diodes, Transistors, ICs as Temperature Sensors

Last Updated on January 23, 2024 by Swagatam 14 Comments

AD590 temp sensor

Normally we find thermistors being used as the sensor for detecting and monitoring temperatures in electronic circuits. However, ordinary semiconductor components like transistors and diodes actually work better than thermitors when it comes to detecting temperature changes. In fact, this feature happens to be one of the greatest drawbacks of semiconductor devices, whose working characteristics […]

Filed Under: Sensors and Detectors Tagged With: Diodes, Sensors, Temperature, Transistors

Using TSOP17XX Sensors with Customized Frequencies

Last Updated on August 3, 2019 by Swagatam 15 Comments

tsop

The TSOP17XX series ICs are special infrared sensor devices built for responding to specific range of infrared frequencies and convert it into an electrical pulsed output. It thus features a foolproof immunity to other forms of IR signals. Due to this specific center or band-pass operating frequency of a TSOP17XX, it becomes difficult to use […]

Filed Under: Sensors and Detectors Tagged With: Customized, Frequencies, Sensors, TSOP17XX

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

Last Updated on May 8, 2022 by Swagatam 9 Comments

In this article I have explained 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 manufacturing plants. Texas Instruments (TI) introduced the growth of its industry-leading sensing integrated circuits with the inclusion of 4 innovative products that […]

Filed Under: Sensors and Detectors Tagged With: Capacitive, Contactless, Humidity, Infrared, Sensors, Temperature

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