quecgnss - Internal GNSS Resolver

This feature provides the APIs of the built-in GNSS feature.

QuecPython modules list that support built-in GNSS:

ECX00U AA/LA series

EG91XU AA series

EC800M GA/GB/GC/GD series

BG95M1/M3 model

Example

import quecgnss


def main():
    ret = quecgnss.init()
    if ret == 0:
        print('GNSS init ok.')
    else:
        print('GNSS init failed.')
        return -1
    data = quecgnss.read(4096)
    print(data[1].decode())

    quecgnss.gnssEnable(0)


if __name__ == '__main__':
    main()


#===================================================================================================
#Execution Result
167,169,170,,,,,,,,1.773,1.013,1.455*15
$GPGSV,2,1,8,3,23,303,34,16,32,219,28,22,74,98,26,25,16,43,25*77
$GPGSV,2,2,8,26,70,236,28,31,59,12,38,32,55,127,34,4,5,,21*49
$BDGSV,2,1,8,163,51,192,32,166,70,11,31,167,52,197,32,169,59,334,31*61
$BDGSV,2,2,8,170,40,205,31,161,5,,31,164,5,,27,165,5,,29*59
$GNRMC,022326.000,A,3149.324624,N,11706.921702,E,0.000,261.541,180222,,E,A*38
$GNGGA,022326.000,3149.324624,N,11706.921702,E,1,12,1.013,-8.580,M,0,M,,*47
$GNGLL,3149.324624,N,11706.921702,E,022326.000,A,A*44
$GNGSA,A,3,31,32,3,16,22,25,26,,,,,,1.773,1.013,1.455*1C
$GNGSA,A,3,163,166,167,169,170,,,,,,,,1.773,1.013,1.455*15
$GPGSV,2,1,8,3,23,303,34,16,32,219,27,22,74,98,26,25,16,43,25*78
$GPGSV,2,2,8,26,70,236,28,31,59,12,37,32,55,127,34,4,5,,20*47
$BDGSV,2,1,8,163,51,192,32,166,70,11,31,167,52,197,32,169,59,334,31*61
$BDGSV,2,2,8,170,40,205,31,161,5,,31,164,5,,27,165,5,,29*59
$GNRMC,022327.000,A,3149.324611,N,11706.921713,E,0.000,261.541,180222,,E,A*3F
$GNGGA,022327.000,3149.324611,N,11706.921713,E,1,12,1.013,-8.577,M,0,M,,*48
$GNGLL,3149.324611,N,11706.921713,E,022327.000,A,A*43
...... # Omit some data due to large data quantity.
$GNGSA,A,3,31,32,3,16,22,25,26,,,,,,1.837,1.120,1.456*11
$GNGSA,A,3,163,166,167,169,170,,,,,,,,1.837,1.120,1.456*18
$GPGSV,2,1,8,3,23,302,27,16,32,220,26,22,73,101,27,25,16,43,27*45
$GPGSV,2,2,8,26,70,237,28,31,59,13,33,32,54,128,28,4,5,,24*44
$BDGSV,2,1,8,163,51,192,33,166,71,11,35,167,52,198,33,169,59,334,34*6E
$BDGSV,2,2,8,170,40,205,32,161,5,,33,164,5,,28,165,5,,30*5F
$GNRMC,022507.000,A,3149.324768,N,11706.922344,E,0.000,261.541,180222,,E,A*31
$GNGGA,022507.000,3149.324768,N,11706.922344,E,1,12,1.120,-8.794,M,0,M,,*48
$GNGLL,3149.324768,N,11706.922344,E,022507.000,A,A*4D
$GNGSA,A,3,31,32,3,16,22,25,26,,,,,,1.837,1.120,1.455*12
$GNGSA,A,3,163,166,167,169,170,,,,,,,,1.837,1.120,1.455*1B
$GPGSV,2,1,8,3,23,302,26,16,32,220,26,22,73,101,27,25,16,43,26*45
$GPGSV,2,2,8,26,70,237,28,31,59,13,32,32,54,128,28,4,5,,24*45
$BDGSV,2,1,8,163,51,192,24,166,71,11,35,167,52,198,33,169,59,334,34*68
$BDGSV,2,2,8,170,40,205,31,161,5,,33,164,5,,28,165,5,,30*5C
$GNRMC,022508.000,A,3149.324754,N,11706.922338,E,0.002,261.541,180222,,E,A*38
$GNGGA,022508.000,3149.324754,N,11706.922338,E,1,12,1.120,-8.750,M,0,M,,*4B
$GNGLL,3149.324754,N,11706.922338,E,022508.000,A,A*46
$GNGSA,A,3,31,3

Initialize GNSS

quecgnss.init

quecgnss.init()

Initializes the built-in GNSS feature.

Return Value
0 - Successful execution

-1 - Failed execution

Get GNSS Working Status

quecgnss.get_state

quecgnss.get_state()

Gets the current working status of the built-in GNSS feature.

Return Value

Enable or Disable GNSS

quecgnss.gnssEnable

quecgnss.gnssEnable(opt)

Enables or disables GNSS feature. If you use the built-in GNSS feature for the first time after powering the module on, you need not call this function to enable GNSS feature, but call quecgnss.init() directly. quecgnss.init() will automatically enable the GNSS feature when GNSS feature is initialized.

Parameter

opt - Integer type. Enable or disable GNSS.

0 - Disable the GNSS feature.

1 - Enable the GNSS feature.

Return Value

0 - Successful execution

-1 - Failed execution

Get GNSS Location Data

quecgnss.read

quecgnss.read(size)

Gets GNSS location data.

Parameter

size - Integer type. Size of the data to be read. Unit: byte.

Return Value

A tuple (size, data) - Successful execution

size - Size of the data read.
data - GNSS location data.

-1 - Failed execution