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Sensors and Detectors

INA219 Current Sensor Circuit Diagram and Datasheet

Last Updated on May 18, 2026 by Swagatam Leave a Comment

In this post we are going to understand this sensor called INA219, and this one is like a full smart sensor. It not only tells how much current is flowing but also tells voltage, and also calculates power, all in digital form. That means it talks with microcontroller through I2C lines. It is like an […]

Filed Under: Datasheets and Components, Sensors and Detectors Tagged With: Current, Datasheet, INA219, Sensor

Check What’s Behind the Paint of a Used Car

Last Updated on May 16, 2026 by Swagatam Leave a Comment

Laminated iron E core

Some methods to hide a used car’s external deterioration include filling up rust holes, removing collision dents with putty, fiberglass, or epoxy, and painting the car. The outside condition of an automobile is very important to potential used car purchasers due to the high cost of extensive bodywork restoration. Here is a simple circuit concept […]

Filed Under: Automobile Electronics, Sensors and Detectors Tagged With: Behind, Check, Paint, Used

Color Detector Circuit with Arduino Code

Last Updated on May 14, 2026 by Swagatam Leave a Comment

schematic 1

In this post I will show how to construct a circuit which can detect color and trigger respective assigned relays. This project is accomplished using TCS3200 color sensor and Arduino board. Color Sensing by TCS3200 If you haven’t read the previous article, please go through it where we have discussed the basics of color sensing […]

Filed Under: Arduino Projects, Sensors and Detectors Tagged With: Arduino, Code, Color, Detector

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

Make this Simple Weather Station Project for Homes and Offices

Last Updated on May 14, 2026 by Swagatam 6 Comments

In this post I will show how to construct an interesting Arduino based mini weather station project, which can show you ambient temperature, humidity, pressure, air quality and much more data from your surroundings, which can be used to predict weather from home. If you are interested in meteorology this project might come in handy […]

Filed Under: Arduino Projects, Sensors and Detectors Tagged With: Homes, Offices, Project, Simple, Station, Weather

How to Use IC LM393 as a Current Controller Circuit

Last Updated on April 15, 2026 by Swagatam Leave a Comment

In this post we will understand a current controller and current limiter circuit using the IC LM393 comparator. This circuit is using a low power voltage comparator integrated circuit LM393 and one power Metal Oxide Semiconductor Field Effect Transistor, so the idea is simple but the working looks a little deep when we see it […]

Filed Under: Sensors and Detectors, Voltage Control and Protection Tagged With: Controller, Current, LM393

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