The goal of this project is figure out:
- Why the new Adafruit Ultimate GPS FeatherWing modules don't work with the Mikal Hart's TinyGPS library
- Find a solution to make the modules work with the library.
I have a project that uses the Mikal Hart's TinyGPS library to parse data from Adafruit Ultimate GPS FeatherWing modules. The featherwing modules is the same module as the Adafruit Ultimate GPS Breakout, just in the Adafruit Feather layout.
From the Adafruit Ultimate GPS Breakout product page: As of Sept 2021, the original "Ultimate GPS" module we used was discontinued by the vendor. We found and are using a nearly identical version of the module with the same functionality. The commands for querying the antenna have changed slightly so existing projects may need to update their firmware.
MTK3329/MTK3339 command set sheet
Default serial output from GPS_HardwareSerial_Parsing.ino
Time: 19:50:10.000
Date: 11/4/2024
Fix: 1 quality: 2
Location: 3906.2783N, 9625.8213W
Speed (knots): 0.01
Angle: 0.00
Altitude: 360.90
Satellites: 18
Antenna status: 0
$GNGGA,195011.000,3906.2783,N,09625.8213,W,2,18,0.59,360.9,M,-28.2,M,,*40
$GNRMC,195011.000,A,3906.2783,N,09625.8213,W,0.01,0.00,110424,,,D*6B
$GNGGA,195012.000,3906.2783,N,09625.8213,W,2,18,0.59,360.9,M,-28.2,M,,*43
$GNRMC,195012.000,A,3906.2783,N,09625.8213,W,0.00,0.00,110424,,,D*69
Time: 19:50:51.981
Date: 11/4/2024
Fix: 1 quality: 1
Location: 3906.2754N, 9625.8223W
Speed (knots): 0.07
Angle: 227.56
Altitude: 346.70
Satellites: 9
Antenna status: 0
$GPGGA,195052.982,3906.2759,N,09625.8222,W,1,09,0.88,347.2,M,-28.2,M,,*5E
$GPGSA,A,3,06,20,22,24,25,11,19,12,17,,,,1.20,0.88,0.82*03
$GPRMC,195052.982,A,3906.2759,N,09625.8222,W,0.09,189.42,110424,,,A*7F
$GPVTG,189.42,T,,M,0.09,N,0.16,K,A*35
$GPGGA,195053.982,3906.2762,N,09625.8222,W,1,09,0.88,347.3,M,-28.2,M,,*56
$GPGSA,A,3,06,20,22,24,25,11,19,12,17,,,,1.20,0.88,0.82*03
$GPRMC,195053.982,A,3906.2762,N,09625.8222,W,0.07,65.46,110424,,,A*4F
$GPVTG,65.46,T,,M,0.07,N,0.14,K,A*0E
In GPS_HardwareSerial_Parsing.ino, comment out
GPS.sendCommand(PMTK_SET_NMEA_OUTPUT_RMCGGA);from Adafruit_GPS/srs/Adafruit_PMTK.h:
#define PMTK_SET_NMEA_OUTPUT_RMCGGA \
"$PMTK314,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0*28" ///< turn on GPRMC and
///< GPGGAFrom Adafruit_GPS.cpp sendCommand():
void Adafruit_GPS::sendCommand(const char *str) { println(str); }Time: 20:13:00.000
Date: 11/4/2024
Fix: 1 quality: 2
Location: 3906.2776N, 9625.8213W
Speed (knots): 0.01
Angle: 197.37
Altitude: 345.50
Satellites: 10
Antenna status: 3
$PGTOP,11,3*6F
$GPGGA,201301.000,3906.2777,N,09625.8209,W,2,10,0.89,345.5,M,-28.2,M,0000,0000*5C
$GPGSA,A,3,06,20,05,22,24,25,11,19,12,17,,,1.62,0.89,1.36*0F
$GPRMC,201301.000,A,3906.2777,N,09625.8209,W,0.02,183.70,110424,,,D*77
$GPVTG,183.70,T,,M,0.02,N,0.04,K,D*33
$PGTOP,11,3*6F
$GPGGA,201302.000,3906.2777,N,09625.8209,W,2,10,0.88,345.5,M,-28.2,M,0000,0000*5E
$GPGSA,A,3,06,20,05,22,24,25,11,19,12,17,,,1.62,0.88,1.36*0E
$GPRMC,201302.000,A,3906.2777,N,09625.8209,W,0.01,213.39,110424,,,D*70
$GPVTG,213.39,T,,M,0.01,N,0.02,K,D*31
Time: 23:59:56.303
Date: 5/1/2080
Fix: 0 quality: 0
$GPGSV,2,1,08,06,,,48,11,,,50,05,,,38,20,,,48*7D
$GPGSV,2,2,08,19,,,42,25,,,46,24,,,42,12,,,49*74
$GLGSV,2,1,08,75,,,,84,,,,65,,,,82,,,*69
$GLGSV,2,2,08,73,,,,76,,,,85,,,,83,,,*6E
$GNRMC,235956.303,V,,,,,0.00,0.00,050180,,,N*51
$GNVTG,0.00,T,,M,0.00,N,0.00,K,N*2C
$GNGGA,201508.201,,,,,0,0,,,M,,M,,*5B
$GPGSA,A,1,,,,,,,,,,,,,,,*1E
$GLGSA,A,1,,,,,,,,,,,,,,,*02
$GNRMC,201508.201,V,,,,,0.00,0.00,100180,,,N*56
$GNVTG,0.00,T,,M,0.00,N,0.00,K,N*2C
$GNGGA,201509.201,,,,,0,0,,,M,,M,,*5A
$GPGSA,A,1,,,,,,,,,,,,,,,*1E
$GLGSA,A,1,,,,,,,,,,,,,,,*02
SOLUTION:
git clone --branch dpwe_gns_fix https://github.com/dpwe/TinyGPS.git
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