Ultrasonic sensors are widely used in robotics and automation for distance measurement. By integrating a servo motor and an ultrasonic sensor, we can build a basic radar system. In this …

The VU meter—short for “volume unit meter”—is a device used to measure the average level of audio signals in terms of their loudness. It visually indicates the intensity of sound …

A sun tracker is a system designed to orient a solar panel or a solar collector to maximize its exposure to sunlight throughout the day. It typically involves sensors to …