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Lưu ý : Nên sử dụng trên bề mặt bằng phẳng để giảm sai số khi sử dụng .
Descriptions:
1>.Pin1:VCC
2>.Pin2:GND
3>.Pin3:CR,serial port USART_RX/IIC_SCL/Trig
4>.Pin4:DT,serial port USART_TX/IIC_SDA/Echo
5>.Pin5:INT,measurement status
6>.Pin6:PS,serial port/IIC/pulse mode conversion (default=IIC mode)
7>.PS pin hardware selection module working mode
8>.PS is left unconnected (default):IIC mode,Pin3(CR)=SCL,Pin4(DT)=SDA,Pin5 is INT status pin
9>.PS to VCC(PS=H):Serial UART mode,Pin3 (CR)=RX,Pin4 (DT)=TX,TTL level
10>.Connect PS to GND (PS=L):Pulse PWM mode,Pin3 (CR)=Trig trigger pin,Pin4 (DT)=Echo echo pin
5.Communication Protocol and Operation Steps:
1>.Serial communication parameters:9600,N,8,1/115200,N,8,1(default baud rate is 9600bps)
2>.Module output format,each frame contains 8-13 bytes (hexadecimal):
1.1>.Byte0:0x5A,frame header flag
1.2>.Byte1:0x5A,frame header flag
1.3>.Byte2:0x45,this frame data type(represents that this frame data is distance data)
1.4>.Byte3:0x02,the a