Скачать или смотреть How to use HC-SR04 Ultrasonic Distance Measuring Sensor with Arduino

Hello Friends : In this video you will be learn
How to use HC-SR04 Ultrasonic Distance Measuring Sensor with Arduino
Product feature:HC-SR04 ultrasonic module can offer non-contact distance sensing function, the range of which is 2cm—400cm., and the range accuracy is up to 2mm; the module includes ultrasonic transmitter, receiver and control circuit.
Electric parameter:
HC-SR04 ultrasonic module
Operating voltage:DC 5V
Operating current:15 mA
Operating frequency:40 Hz
Utmost range:4 m
Nearest range:2cm
Measure angel:15°
Input trigger signal:10uS TTL pluse
Output echo signal:Output TTL level signal, proportional to the range
specification:45*20*15 mm

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