For example, by measuring the time between sending a signal and receiving an echo the distance of an object can be calculated. Passive ultrasonic sensors are microphones that detect ultrasonic noise ...

About This Arduino project controls a servo motor based on distance measured by an HC-SR04 ultrasonic sensor, adjusting to four angles for different proximity ranges. It updates only when significant ...

The TOF principle is used for measuring the distance between a sensor and an object. The time taken by the signal to reach back to the sensor after reflecting from an object is measured and it is used ...

This Arduino-based distance meter can be used for measuring the distance between the sensor and object in the range of 2cm to 400cm.

Of course, many different types of distance measuring sensors exist but not all sensors are the same. Each sensor has its own advantages and disadvantages. At its most basic level, a distance ...

Build a Speed Sensor using Arduino with IR speed sensors to accurately measure the speed of moving objects. This tutorial covers circuit design, sensor calibration, speed calculations, and optimized ...