Ultrasonic Sensor Module HC-SR04 Distance Measuring Sensor for arduino SR04
1,01 €
1 x HC-SR04 Ultrasonic Module. 5 x HC-SR04 Ultrasonic Module. Input trigger Signal: 10us TTL impulse. Trigger Pulse Input. Note : the module should be inserted in the circuit before been power, which avoid producing high level of misoperation;if not, then power again.
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