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717	717	The SN50_v3 detects the pulse width of the sensor and converts it to mm output. The accuracy will be within 1 centimeter. The usable range (the distance between the ultrasonic probe and the measured object) is between 24cm and 600cm.
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719		-The working principle of this sensor is similar to the **HC-SR04** ultrasonic sensor.
	719	+The working principle of this sensor is similar to the **(% style="color:blue" %)HC-SR04**(%%) ultrasonic sensor.
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721	721	The picture below shows the connection:
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723	723	[[image:image-20230512173903-6.png||height="596" width="715"]]
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725		-Connect to the SN50_v3 and run **AT+MOD=2** to switch to ultrasonic mode (ULT).
	725	+Connect to the SN50_v3 and run **(% style="color:blue" %)AT+MOD=2**(%%) to switch to ultrasonic mode (ULT).
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727	727	The ultrasonic sensor uses the 8^^th^^ and 9^^th^^ byte for the measurement value.
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