Avstandsmåler Ultrasonic Module HC-SR04 Distance Measuring Transducer Sensor For eg. Arduino PI

kr69,00 inkl. mva

Avstandsmåler. Ultrasonic Modul.

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Avstandsmåler Ultrasonic Module HC-SR04 Distance Measuring Transducer Sensor For eg. Arduino PI

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

Use method:

Supply module with 5V. The output will be 5V while obstacle in range, or 0V if not.

Note: The module should be inserted in the circuit before powering up.. This will avoid producing high level / misoperation. Restart the unit if necessary.

Module Working Principle:

1.Adopt IO trigger through supplying at least 10us sequence of high level signal.

2.The module automatically send eight 40khz square wave and automatically detect whether receive the returning pulse signal.

3.If there is signals returning, through outputting high level and the time of high level continuing is the time of that from the ultrasonic transmitting to receiving. Test distance = (high level time * sound velocity (340M/S) / 2.

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