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Merge pull request #1351 from weebl2000/heltec_wireless_tracker_gps

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Support GPS properly on Heltec Wireless Tracker v1.x
This commit is contained in:
Liam Cottle
2026-03-03 23:11:46 +13:00
committed by GitHub
parent 6431cd2d47 59d9770ab9
commit bbd621ba85
3 changed files with 11 additions and 6 deletions
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5
variants/heltec_tracker/platformio.ini
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@@ -32,6 +32,11 @@ build_flags =
-D PIN_TFT_LEDA_CTL=21 ; LEDK (switches on/off via mosfet to create the ground) -D PIN_TFT_LEDA_CTL=21 ; LEDK (switches on/off via mosfet to create the ground)
-D PIN_GPS_RX=33 -D PIN_GPS_RX=33
-D PIN_GPS_TX=34 -D PIN_GPS_TX=34
-D PIN_GPS_EN=35 ; N-ch MOSFET Q2 drives P-ch high-side switch → active HIGH (default)
-D PIN_GPS_RESET=36
-D PIN_GPS_RESET_ACTIVE=LOW
-D GPS_BAUD_RATE=115200
-D ENV_INCLUDE_GPS=1
-D SX126X_DIO2_AS_RF_SWITCH=true -D SX126X_DIO2_AS_RF_SWITCH=true
-D SX126X_DIO3_TCXO_VOLTAGE=1.8 -D SX126X_DIO3_TCXO_VOLTAGE=1.8
-D SX126X_CURRENT_LIMIT=140 -D SX126X_CURRENT_LIMIT=140

11
variants/heltec_tracker/target.cpp
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@@ -16,7 +16,8 @@ WRAPPER_CLASS radio_driver(radio, board);
ESP32RTCClock fallback_clock; ESP32RTCClock fallback_clock;
AutoDiscoverRTCClock rtc_clock(fallback_clock); AutoDiscoverRTCClock rtc_clock(fallback_clock);
MicroNMEALocationProvider nmea = MicroNMEALocationProvider(Serial1); // GPS_EN (GPIO35) drives N-ch MOSFET → P-ch high-side switch; GPS_RESET (GPIO36) active LOW
MicroNMEALocationProvider nmea = MicroNMEALocationProvider(Serial1, &rtc_clock, GPS_RESET, GPS_EN, &board.periph_power);
HWTSensorManager sensors = HWTSensorManager(nmea); HWTSensorManager sensors = HWTSensorManager(nmea);
#ifdef DISPLAY_CLASS #ifdef DISPLAY_CLASS
@@ -58,18 +59,16 @@ mesh::LocalIdentity radio_new_identity() {
void HWTSensorManager::start_gps() { void HWTSensorManager::start_gps() {
if (!gps_active) { if (!gps_active) {
board.periph_power.claim(); _location->begin(); // Claims periph_power via RefCountedDigitalPin
gps_active = true; gps_active = true;
Serial1.println("$CFGSYS,h35155*68"); Serial1.println("$CFGSYS,h35155*68"); // Configure GPS for all constellations
} }
} }
void HWTSensorManager::stop_gps() { void HWTSensorManager::stop_gps() {
if (gps_active) { if (gps_active) {
gps_active = false; gps_active = false;
_location->stop(); // Releases periph_power via RefCountedDigitalPin
board.periph_power.release();
} }
} }

1
variants/heltec_tracker/target.h
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@@ -28,6 +28,7 @@ public:
const char* getSettingName(int i) const override; const char* getSettingName(int i) const override;
const char* getSettingValue(int i) const override; const char* getSettingValue(int i) const override;
bool setSettingValue(const char* name, const char* value) override; bool setSettingValue(const char* name, const char* value) override;
LocationProvider* getLocationProvider() override { return _location; }
}; };
extern HeltecV3Board board; extern HeltecV3Board board;