One of the major problems faced by most countries today is water scarcity. This scarcity is mainly due to the wastage of water. There is an urgent need to control water wastage to protect the ...

The ultrasonic distance sensor (HC-SR04) is a widely used electronic component for non-contact distance measurement. It operates on the principle of echo-ranging, where it emits an ultrasonic pulse ...

This is an Arduino-based Proximity Sensor circuit wired using the popular HC-SR04 Ultrasonic ranging module,used here for non-contact object detection purpose. The HC-SR04 module includes ultrasonic ...

Liquid-level sensing based on capacitive sensors comes with its own challenges. It’s like absolute capacitance sensing. Unlike touch detection, the absolute value of the liquid level needs to be ...

Abstract: From time to time, it is necessary to measure the level of certain sealed containers in life. These containers are usually filled with liquids that are flammable and explosive, toxic and ...