J’ai utilisé le strech de la librairy Adafruit : shield_sdlog.
On peut constater que les données deviennent "valides" très rapidement : 8 secondes après avoir allumé le GPS.
Branchement du GPS (heure solaire): 05h44mn38s.134
$GPGGA,054438.134,,,,,0,01,,,M,,M,,*71
$GPRMC,054438.134,V,,,,,0.05,41.53,280318,,,N*73
$GPGGA,054439.134,,,,,0,01,,,M,,M,,*70
$GPRMC,054439.134,V,,,,,0.03,221.18,280318,,,N*4F
$GPGGA,054440.134,,,,,0,01,,,M,,M,,*7E
$GPRMC,054440.134,V,,,,,0.11,221.28,280318,,,N*41
$GPGGA,054441.134,,,,,0,02,,,M,,M,,*7C
$GPRMC,054441.134,V,,,,,0.46,164.96,280318,,,N*45
$GPGGA,054442.134,,,,,0,03,,,M,,M,,*7E
$GPRMC,054442.134,V,,,,,0.59,160.67,280318,,,N*42
$GPGGA,054443.134,,,,,0,03,,,M,,M,,*7F
$GPRMC,054443.134,V,,,,,0.29,150.50,280318,,,N*43
$GPGGA,054444.134,,,,,0,04,,,M,,M,,*7F
$GPRMC,054444.134,V,,,,,0.49,152.96,280318,,,N*4A
$GPGGA,054445.152,,,,,0,05,,,M,,M,,*7F
$GPRMC,054445.152,V,,,,,3.65,94.77,280318,,,N*72
8 secondes plus tard : les données des satellites sont valides.
L’altitude( en mètres) fluctue beaucoup.
$GPGGA,054446.151,45 .6884,N,005 .9445,E,1,06,1.46,510.9,M,48.5,M,,*6E
La date du jour : 28 03 2018
$GPRMC,054446.151,A,45 .6884,N,005 .9445,E,2.25,99.14,280318,,,A*5D
$GPGGA,054447.155,45 .6872,N,005 .9418,E,1,06,1.46,513.2,M,48.5,M,,*62
$GPRMC,054447.155,A,45 .6872,N,005 .9418,E,1.45,103.46,280318,,,A*69
$GPGGA,054448.154,45 .6863,N,005 .9414,E,1,06,1.46,509.3,M,48.5,M,,*6A
$GPRMC,054448.154,A,45 .6863,N,005 .9414,E,0.72,92.56,280318,,,A*56
$GPGGA,054449.153,45 .6863,N,005 .9428,E,1,06,1.46,502.2,M,48.5,M,,*69
On peut constater que les données deviennent "valides" très rapidement : 8 secondes après avoir allumé le GPS.
Branchement du GPS (heure solaire): 05h44mn38s.134
$GPGGA,054438.134,,,,,0,01,,,M,,M,,*71
$GPRMC,054438.134,V,,,,,0.05,41.53,280318,,,N*73
$GPGGA,054439.134,,,,,0,01,,,M,,M,,*70
$GPRMC,054439.134,V,,,,,0.03,221.18,280318,,,N*4F
$GPGGA,054440.134,,,,,0,01,,,M,,M,,*7E
$GPRMC,054440.134,V,,,,,0.11,221.28,280318,,,N*41
$GPGGA,054441.134,,,,,0,02,,,M,,M,,*7C
$GPRMC,054441.134,V,,,,,0.46,164.96,280318,,,N*45
$GPGGA,054442.134,,,,,0,03,,,M,,M,,*7E
$GPRMC,054442.134,V,,,,,0.59,160.67,280318,,,N*42
$GPGGA,054443.134,,,,,0,03,,,M,,M,,*7F
$GPRMC,054443.134,V,,,,,0.29,150.50,280318,,,N*43
$GPGGA,054444.134,,,,,0,04,,,M,,M,,*7F
$GPRMC,054444.134,V,,,,,0.49,152.96,280318,,,N*4A
$GPGGA,054445.152,,,,,0,05,,,M,,M,,*7F
$GPRMC,054445.152,V,,,,,3.65,94.77,280318,,,N*72
8 secondes plus tard : les données des satellites sont valides.
L’altitude( en mètres) fluctue beaucoup.
$GPGGA,054446.151,45 .6884,N,005 .9445,E,1,06,1.46,510.9,M,48.5,M,,*6E
La date du jour : 28 03 2018
$GPRMC,054446.151,A,45 .6884,N,005 .9445,E,2.25,99.14,280318,,,A*5D
$GPGGA,054447.155,45 .6872,N,005 .9418,E,1,06,1.46,513.2,M,48.5,M,,*62
$GPRMC,054447.155,A,45 .6872,N,005 .9418,E,1.45,103.46,280318,,,A*69
$GPGGA,054448.154,45 .6863,N,005 .9414,E,1,06,1.46,509.3,M,48.5,M,,*6A
$GPRMC,054448.154,A,45 .6863,N,005 .9414,E,0.72,92.56,280318,,,A*56
$GPGGA,054449.153,45 .6863,N,005 .9428,E,1,06,1.46,502.2,M,48.5,M,,*69