$21.49
Brand: ELEGOO
Color: Bule
Features:
Details:
Elegoo Inc. is a professional manufacturer and exporter that is concerned with the design, development production and marketing of arduino, 3d printers, raspberry pi and STM32.
Our Dream is to make the best price and best quality produce for customers.
So we would like to receive your valuable suggestions for our products and we can improve them for you.
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.
The distance between the unit and the object is calculated by measuring the traveling time of sound and output it as the width of a TTL pulse.
power supply :5V DC
quiescent current :