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GPS: configure L76K for GPS, BeiDou and GLONASS #3201

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GPS: configure L76K for GPS, BeiDou and GLONASS #3201

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16 changes: 16 additions & 0 deletions src/helpers/sensors/MicroNMEALocationProvider.h
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Original file line number Diff line number Diff line change
Expand Up @@ -51,6 +51,17 @@ class MicroNMEALocationProvider : public LocationProvider {
unsigned long _last_time_sync = 0;
static const unsigned long TIME_SYNC_INTERVAL = 1800000; // Re-sync every 30 minutes

#ifdef GPS_L76K
void configureL76K() {
// Reapply the constellation mode at each provider start instead of
// assuming it survives a receiver power cycle.
// Mode 7 enables GPS + BeiDou + GLONASS.
delay(250);
MicroNMEA::sendSentence(*_gps_serial, "$PCAS04,7");
delay(250);
}
#endif

public :
MicroNMEALocationProvider(Stream& ser, mesh::RTCClock* clock = NULL, int pin_reset = GPS_RESET, int pin_en = GPS_EN,RefCountedDigitalPin* peripher_power=NULL) :
nmea(_nmeaBuffer, sizeof(_nmeaBuffer)), _clock(clock), _gps_serial(&ser), _peripher_power(peripher_power), _pin_reset(pin_reset), _pin_en(pin_en) {
Expand Down Expand Up @@ -91,6 +102,11 @@ public :
delay(10);
digitalWrite(_pin_reset, !GPS_RESET_ACTIVE);
}
#ifdef GPS_L76K
// EnvironmentSensorManager calls reset() immediately after begin().
// Configure only after that reset so the setting is not discarded.
configureL76K();
#endif
}

void stop() override {
Expand Down