This video demonstrates how to use an HC-SR04 ultrasonic sensor with an Arduino board to measure distances. The video explains the sensor's workings, pinouts, and how to calculate distance using the time it takes for sound waves to travel to an object and back. The video then shows how to interface the sensor with an Arduino and provides a simple code example for measuring distance.
21854 5 лет назад 4:10This video demonstrates how to build a distance meter using a Sharp 2Y0A21 distance sensor without a microcontroller. The project uses an LED bar to display the distance, with each LED representing a specific distance range. The video also explores alternative methods for using the sensor, such as driving a relay to control a 220 volt AC load.
12148 4 года назад 3:37