HONGYUV HY-WDC2E User Manual page 10

1 Physical port definition
 Start bit——1bit
 Stop bit——1bit
 Data bit——8bits
 Check bit——none
 Baud rate——9600bps
2 Data-frame format(ASCII)
$WIMWV,180,R,0.01,M,A*06<CR><LF>
Appendix.Checksum
unsigned char NMEA_CheckSum(unsigned char *pStr,unsigned int DStrlen)
{
unsigned char ChkSum = 0;
unsigned int i=0;
while(DStrlen--)
{
ChkSum ^= pStr[i];
i++;
}
return ChkSum;
}
Hongyuv Technologies Co.,Ltd Tel: +86 28 87702755
The Ultrasonic Wind speed and Wind direction sensor
Communication Protocol
NMEA-0183
Fax: +86 28 85593421
The Ultrasonic 2D Compact Anemometer
CRLF 0x0D 0x0A
Checksum,between"$"and"*"
Bitwise XOR of all
characters(excluding these two
characters
Unit
K=km/h
M=m/s
N=knots
Wind speed，0~60 m/s
R relative wind speed
T actual wind speed
Wind direction，0~359°
Fixed frame header
Email: info@hongyuv.com Website: www.hongyuv.com