Ultrasonic Module HC-SR04 Distance Measuring Transducer Sensor
This product is widely used in product development, student experiments, maintenance, production, etc.
Supply module with 5V, the output will be 5V while obstacle in range, or 0V if not.The out pin of this module is used as a switching output when anti-theft module, and without the feet when ranging modules.
The module should be inserted in the circuit before been power, which avoid producing high level of misoperation;if not, then power again.
This module is not suitable to connect with electric power, if you need to connect this module with electronic power,then let the GND terminal of this module to be connected first,otherwise, it will affect the normal work of the module.
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