Atomic GPS Base v2.0 Arduino チュートリアル

/*
 *SPDX-FileCopyrightText: 2025 M5Stack Technology CO LTD
 *
 *SPDX-License-Identifier: MIT
 */

#include "M5Unified.h"
#include "M5GFX.h"
#include "MultipleSatellite.h"

static const int RXPin = 5, TXPin = 6;
static const uint32_t GPSBaud = 115200;
MultipleSatellite gps(Serial1, GPSBaud, SERIAL_8N1, RXPin, TXPin);

// Current satellite mode
satellite_mode_t currentMode = SATELLITE_MODE_GPS;

void displayInfo(void);

// Get the Sat prefix
const char* getSatPrefix(satellite_mode_t mode) {
    switch (mode) {
        case SATELLITE_MODE_GPS:      return "GPS_Sat";
        case SATELLITE_MODE_BDS:      return "BDS_Sat";
        case SATELLITE_MODE_GLONASS:  return "GLN_Sat";
        case SATELLITE_MODE_GALILEO:  return "GAL_Sat";
        case SATELLITE_MODE_QZSS:     return "QZS_Sat";
        default:                      return "Unknown";
    }
}

void setup() {
    M5.begin();
    Serial.begin(115200);
    gps.begin();
    gps.setSystemBootMode(BOOT_FACTORY_START);
    Serial.println(F("A simple demonstration of TinyGPSPlus with Atomic GPS Base"));
    Serial.print(F("Testing TinyGPSPlus library v. "));
    Serial.println(TinyGPSPlus::libraryVersion());
    Serial.println();
    String version = gps.getGNSSVersion();
    Serial.printf("GNSS SW=%s\r\n", version.c_str());
    delay(1000);

    // Set the satellite mode and record the current mode
    currentMode = SATELLITE_MODE_GPS;
    gps.setSatelliteMode(currentMode);

    M5.Display.setFont(&fonts::FreeMonoBold9pt7b);
}

void loop() {
    // Update data
    gps.updateGPS();
    displayInfo();
    delay(100);
}

void displayInfo(void) {
    Serial.print(F("Location: "));
    Serial.printf("satellites:%d\n", gps.satellites.value());
    String gps_mode = gps.getSatelliteMode();
    M5.Display.setCursor(110, 0);
    Serial.printf("GNSS Mode:%s\r\n", gps_mode.c_str());

    const char* satPrefix = getSatPrefix(currentMode);

    if (gps.location.isUpdated()) {
        Serial.print(gps.location.lat(), 6);
        Serial.print(F(","));
        Serial.print(gps.location.lng(), 6);
        Serial.print(F("\n"));

        M5.Display.fillRect(0, 0, 128, 128, BLACK);
        M5.Display.setCursor(0, 0);
        M5.Display.printf("%s: \nSat: %d\nLat: %d\nlng: %d\n", satPrefix,
                          (uint8_t)gps.satellites.value(),
                          (uint8_t)gps.location.lat(),
                          (uint8_t)gps.location.lng());
    } else {
        M5.Display.fillRect(0, 0, 128, 128, BLACK);
        M5.Display.setCursor(0, 0);
        M5.Display.printf("%s\n", satPrefix);
        M5.Display.print("Sat: ----\n");
        M5.Display.print("Lat: ----\n");
        M5.Display.print("Lng: ----\n");
        Serial.print(F("INVALID\n"));
    }

    Serial.print(F("Date/Time: "));
    if (gps.date.isUpdated()) {
        Serial.print(gps.date.month());
        Serial.print(F("/"));
        Serial.print(gps.date.day());
        Serial.print(F("/"));
        Serial.print(gps.date.year());
        M5.Display.fillRect(0, 80, 128, 128, BLACK);
        M5.Display.setCursor(0, 80);
        M5.Display.printf("%d/%d/%d\n", gps.date.month(),
                          gps.date.day(), gps.date.year());
    } else {
        Serial.print(F("INVALID"));
    }

    Serial.print(F(" "));
    if (gps.time.isUpdated()) {
        if (gps.time.hour() < 10) Serial.print(F("0"));
        Serial.print(gps.time.hour());
        Serial.print(F(":"));
        if (gps.time.minute() < 10) Serial.print(F("0"));
        Serial.print(gps.time.minute());
        Serial.print(F(":"));
        if (gps.time.second() < 10) Serial.print(F("0"));
        Serial.print(gps.time.second());
        Serial.print(F("."));
        if (gps.time.centisecond() < 10) Serial.print(F("0"));
        Serial.print(gps.time.centisecond());
        M5.Display.fillRect(0, 128, 128, 60, BLACK);
        M5.Display.setCursor(0, 96);
        M5.Display.printf("Time: \n%d:%d:%d.%d", gps.time.hour(), gps.time.minute(),
                          gps.time.second(),gps.time.centisecond());
    } else {
        Serial.print(F("INVALID"));
    }
    Serial.println();
    delay(1000);
}