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ELEGOO 5PCS HC-SR04 Ultrasonic Module Distance Sensor Kit
- Product description 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 kind of projects that need distance measurements, avoiding obstacles as examples. HC-SR04 provides 3cm-450cm non-contact measurement function, the ranging accuracy can reach to 3mm. The modules include ultrasonic transmitters, receiver and control circuit. Operating Principle of Ultrasonic Sensor As the name indicates, ultrasonic sensors measure distance by using ultrasonic waves. The sensor head emits an ultrasonic wave and receives the wave reflected back from the target. Ultrasonic Sensors measure the distance to the target by measuring the time between the emission and reception. The distance can be calculated with the following formula: Distance L = 1/2 × T × C where L is the distance, T is the time between the emission and reception, and C is the sonic speed. (The value is multiplied by 1/2 because T is the time for go-and-return distance.) For Electronics Project with Ultrasonic Sensor Elegoo Ultrasonic Sensor HC-SR04 is inexpensive and easy to use since we will be using a Library specifically des
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Ultrasonic hc-sr04 distance measuring transducer sensor; HC-SR04 consists of ultrasonic transmitter, receiver, and control circuit. When trigged 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: 3cm450cm
; resolution: 0. 3 cm~;
Package Content: 5pcs HC-SR04
~Power supply: 5V
DC; quiescent current: less than 2mA; effectual angle: less
than 15°; distance: 3cm450cm
; resolution: 0. 3 cm~;
Package Content: 5pcs HC-SR04
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