CUQI Ultrasonic Module Distance Measuring Sensor Module Kit, Transmitter and Receiver Module Compatible with DIY Robot Car/Raspberry Pi 4B, 3B+, 3B (4PCS)…
What is the HC-SR04 Ultrasonic Sensor? 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. Read more Parameter details Power Supply +5V DC Quiescent Current 3mA Working Current < 5mA Effectual Angle <15° Ranging Distance 2cm - 300 cm/1″ - 10ft Accuracy 0.3 cm Measuring Angle 30 degree Trigger Input Pulse width 10uS Dimensions 45mm x 20mm x 15mm What project can Ultrasonic Sensor be applied for? Ultrasonic Sensor HC-SR04 is great for all kinds of projects that need distance measurements, avoiding obstacles as examples. HC-SR04 provides a 2cm-400cm non-contact measurement function, the ranging accuracy can reach 3mm. The modules include ultrasonic transmitters, receivers, and control circuits. Read more Operatiing 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 the go-and-return distance.) Read more
Product Features
- Ultrasonic module 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: DC 5V, Quiescent Current: less than 2mA; effectual angle: less than 15; distance: 2cm-500cm.
- Compatible with DIY Robot Car/Raspberry Pi 4B, 3B+, 3B
- Package Content: 4Pcs HC-SR04.
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