HC-SR04 Ultrasonic Sensor Module (5 Sets)

Ultrasonic HC-SR04 distance measuring transducer sensor HC-SR04 consists of an ultrasonic transmitter, receiver, and a control circuit. When triggered it sends out a series of 40KHz ultrasonic pulses and receives echo from an object. Power supply: 5V DC; quiescent current: less than 2mA; effectual angle: less than 15°; distance: 2cm500cm; resolution: 0. 3 cm~ Package Content: 5pcs HC-SR04 with a little gift ELEGOO HC-SR04 Ultrasonic Sensor is a device that can measure the distance to an object by using sound waves. It measures distance by sending out a sound wave at a specific frequency and listening for that sound wave to bounce back. By recording the elapsed time between the sound wave being generated and the sound wave bouncing back, it is possible to calculate the distance between the sonar sensor and the object. Ultrasonic Sensor HC-SR04 is great for all kinds of projects that need distance measurements, avoiding obstacles as examples. HC-SR04 provides 2cm-400cm non-contact meas