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Ultrasonic module for Arduino Robot sensor HC SR04

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Ultrasonic module for Arduino Robot sensor HC SR04 NEW!!
Ultrasonic module for Arduino projects Robot sensor HC SR04 Distance measuring NEW!!
Description:
Module main technical parameters:
1.Working Voltage : 5V(DC)
2.Static current: Less than 2mA.
3.Output signal: Electric frequency signal, high level 5V, low level 0V.
4.Sensor angle: Not more than 15 degrees.
5.Detection distance: 2cm-450cm.
6.High precision: Up to 0.3cm
7.Input trigger signal: 10us TTL impulse
8.Echo signal : output TTL PWL signal
Mode of connection:
1.VCC, 2.trig(T), 3.echo(R), 4.GND

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