huawei_mu609_gps

Huawei MU609 GPS mode

See the following documentation for more information:

ttyUSB0: MODEM port: simulated using USB, for AT command interaction and establishing data connection.
ttyUSB1: DIAG port: simulated using USB, for DIAG (diagnostic) command interaction (mainly used to debug modules at present).
ttyUSB2: PCUI port: simulated using USB, for AT command interaction only.
ttyUSB3: GPS NMEA port: simulated using USB, sending unsolicited indications for NMEA positioning data only.
ttyUSB4: GPS Control port: simulated using USB, for GPS AT command interaction only.
eth3: ECM port: for establishing communication connection.

Set the positioning method to Standalone.
```
AT^WPDOM=0
```
Set the session type to single positioning.
```
AT^WPDST=0
```
Set the session type to tracking and positioning.
```
AT^WPDST=1
```
Set the number of positioning times and the interval between each positioning for the tracking and positioning. If the session is a single positioning, you do not need to set these parameters.
```
AT^WPDFR=65535,1
```
Set the positioning service quality. The first parameter indicates the response time, and the second indicates the horizontal accuracy threshold.
```
AT^WPQOS=255,500
```
Start positioning.
```
AT^WPDGP
```
Present the positioning result.
```
^POSITION: 113.94026d,22.53206d,270m
```
The first value indicates positioning end reason, and the second indicates the left positioning times.
```
^POSEND: -1,9
```
Stop positioning.
```
AT^WPEND
```

Set GNSS as the positioning system to use both the GPS and GLONASS satellites for positioning. To switch from one positioning system to another, the module must restart. To switch the module to use GPS satellites only, run AT^WGNSS=0 and restart the module.
```
AT^WGNSS=1
```