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https://github.com/meshcore-dev/MeshCore.git
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59d9770ab9
Pin mapping verified against HTIT-Tracker V0.5 schematic: - GPIO35 (GPS_EN): N-ch MOSFET drives P-ch high-side switch, active HIGH - GPIO36 (GPS_RST): hardware reset, active LOW - GPIO33/34: UART TX/RX Delegates power management to MicroNMEALocationProvider begin()/stop() which independently controls GPS power via GPS_EN and shares VEXT with the display through RefCountedDigitalPin.
126 lines
3.4 KiB
C++
126 lines
3.4 KiB
C++
#include <Arduino.h>
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#include "target.h"
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#include <helpers/sensors/MicroNMEALocationProvider.h>
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HeltecV3Board board;
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#if defined(P_LORA_SCLK)
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static SPIClass spi;
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RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY, spi);
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#else
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RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY);
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#endif
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WRAPPER_CLASS radio_driver(radio, board);
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ESP32RTCClock fallback_clock;
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AutoDiscoverRTCClock rtc_clock(fallback_clock);
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// GPS_EN (GPIO35) drives N-ch MOSFET → P-ch high-side switch; GPS_RESET (GPIO36) active LOW
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MicroNMEALocationProvider nmea = MicroNMEALocationProvider(Serial1, &rtc_clock, GPS_RESET, GPS_EN, &board.periph_power);
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HWTSensorManager sensors = HWTSensorManager(nmea);
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#ifdef DISPLAY_CLASS
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DISPLAY_CLASS display(&board.periph_power); // peripheral power pin is shared
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MomentaryButton user_btn(PIN_USER_BTN, 1000, true);
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#endif
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bool radio_init() {
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fallback_clock.begin();
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rtc_clock.begin(Wire);
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#if defined(P_LORA_SCLK)
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return radio.std_init(&spi);
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#else
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return radio.std_init();
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#endif
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}
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uint32_t radio_get_rng_seed() {
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return radio.random(0x7FFFFFFF);
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}
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void radio_set_params(float freq, float bw, uint8_t sf, uint8_t cr) {
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radio.setFrequency(freq);
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radio.setSpreadingFactor(sf);
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radio.setBandwidth(bw);
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radio.setCodingRate(cr);
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}
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void radio_set_tx_power(int8_t dbm) {
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radio.setOutputPower(dbm);
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}
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mesh::LocalIdentity radio_new_identity() {
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RadioNoiseListener rng(radio);
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return mesh::LocalIdentity(&rng); // create new random identity
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}
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void HWTSensorManager::start_gps() {
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if (!gps_active) {
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_location->begin(); // Claims periph_power via RefCountedDigitalPin
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gps_active = true;
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Serial1.println("$CFGSYS,h35155*68"); // Configure GPS for all constellations
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}
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}
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void HWTSensorManager::stop_gps() {
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if (gps_active) {
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gps_active = false;
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_location->stop(); // Releases periph_power via RefCountedDigitalPin
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}
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}
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bool HWTSensorManager::begin() {
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// init GPS port
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Serial1.begin(115200, SERIAL_8N1, PIN_GPS_RX, PIN_GPS_TX);
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return true;
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}
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bool HWTSensorManager::querySensors(uint8_t requester_permissions, CayenneLPP& telemetry) {
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if (requester_permissions & TELEM_PERM_LOCATION) { // does requester have permission?
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telemetry.addGPS(TELEM_CHANNEL_SELF, node_lat, node_lon, node_altitude);
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}
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return true;
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}
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void HWTSensorManager::loop() {
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static long next_gps_update = 0;
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_location->loop();
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if (millis() > next_gps_update) {
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if (gps_active && _location->isValid()) {
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node_lat = ((double)_location->getLatitude())/1000000.;
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node_lon = ((double)_location->getLongitude())/1000000.;
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node_altitude = ((double)_location->getAltitude()) / 1000.0;
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MESH_DEBUG_PRINTLN("lat %f lon %f", node_lat, node_lon);
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}
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next_gps_update = millis() + 1000;
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}
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}
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int HWTSensorManager::getNumSettings() const { return 1; } // just one supported: "gps" (power switch)
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const char* HWTSensorManager::getSettingName(int i) const {
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return i == 0 ? "gps" : NULL;
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}
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const char* HWTSensorManager::getSettingValue(int i) const {
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if (i == 0) {
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return gps_active ? "1" : "0";
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}
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return NULL;
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}
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bool HWTSensorManager::setSettingValue(const char* name, const char* value) {
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if (strcmp(name, "gps") == 0) {
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if (strcmp(value, "0") == 0) {
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stop_gps();
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} else {
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start_gps();
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}
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return true;
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}
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return false; // not supported
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}
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