The sensors for monitoring different parameters in smart cities are becoming a hot topic for researchers all around the world. The smart grids are one of the main objectives of the smart city concept.

The research aims to utilize simple technology using water level sensors, automatic switches, and the Blynk application to detect water levels automatically. The tools used are infrared switch sensor, ...

An ESP32 based water softener salt level sensor Uses the HC-SR04 ultrasonic distance sensor to measure the salt level in the brine tank. The level is published to an MQTT broker configured in the ...

Dissolved oxygen (DO) is the measure of oxygen gas that is physically dissolved in water. It is a critical parameter for ...

Oceans comprise about 96.5% of the water-covered surface (71%) of the Earth. Surprisingly, the salinity of these huge bodies ...

The sensors automatically detect rising water levels and provide early warnings about high water levels or flooding, and ...

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Installing a smart water sensor can save you a lot of money and hassle. The best models we've tested immediately alert you to leaks and even shut off your home's water supply.

This Arduino code utilizes an ultrasonic sensor to measure distances. When an object is detected within a fix distance , the connected motors trigger a sequence: move backward, turn right, turn left, ...

Lake Balaton's water level has already dropped to a concerning 99 cm—well below seasonal norms—as hot, dry conditions persist across Hungary.

Once in place, I paired it to the Stelo app, and it automatically reflected within the Oura app. Each sensor tracks your glucose level 24/7 for up to 15 days. From the Oura app, I could see how my ...