基于arduino cloud的GPS定位

成果概览

所需物料

• arduino UNO R4 Wi-Fi开发板

• 面包板

• LED

• 220Ω电阻

• GY-NEO-8M GPS芯片（搭配陶瓷天线）

• 导线若干

• 另外，需申请arduino cloud账号（免费版即可）

开发流程

核心代码

/* 
  Sketch generated by the Arduino IoT Cloud Thing "Untitled"
  https://create.arduino.cc/cloud/things/b28f3724-a84b-4973-babe-1ae2e4a7aac1 

  Arduino IoT Cloud Variables description

  The following variables are automatically generated and updated when changes are made to the Thing

  String iPaddress;
  float latitude;
  float longitude;
  CloudLocation location;
  bool led;

  Variables which are marked as READ/WRITE in the Cloud Thing will also have functions
  which are called when their values are changed from the Dashboard.
  These functions are generated with the Thing and added at the end of this sketch.
*/

#include "thingProperties.h"
#include <WiFiS3.h>

#include <TinyGPS++.h>
#include <SoftwareSerial.h>

#define gpsTX 7
#define gpsRX 8
#define gpsBaud 9600  // 确保这个波特率与你的GPS模块设置一致

SoftwareSerial gpsSerial(gpsRX, gpsTX);
TinyGPSPlus gps;

unsigned long lastUpdateTime = 0;

const int timeZoneOffset = 8; // 假设你在东八区

const int ledPIN = 2;

void setup() {
  // Initialize serial and wait for port to open:
  Serial.begin(9600);

  gpsSerial.begin(gpsBaud);
  Serial.println("GPS Module Testing with TinyGPS++ library");
  // This delay gives the chance to wait for a Serial Monitor without blocking if none is found
  delay(1500); 

  // Defined in thingProperties.h
  initProperties();

  // Connect to Arduino IoT Cloud
  ArduinoCloud.begin(ArduinoIoTPreferredConnection);
  
  /*
     The following function allows you to obtain more information
     related to the state of network and IoT Cloud connection and errors
     the higher number the more granular information you’ll get.
     The default is 0 (only errors).
     Maximum is 4
 */
  setDebugMessageLevel(2);
  ArduinoCloud.printDebugInfo();
  pinMode(ledPIN,OUTPUT);

  // 初始化Wi-Fi
  Serial.print("Connecting to ");
  Serial.println(SSID);

  WiFi.begin(SSID, PASS);

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  // 连接成功
  Serial.println("");
  Serial.println("WiFi connected.");
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP()); // 打印IP地址
  iPaddress = WiFi.localIP().toString(); // 将本地IP地址转换为String并赋值给iPaddress
}

void loop() {
  ArduinoCloud.update();
  // Your code here 
  if (millis() - lastUpdateTime >= 60000) {
    lastUpdateTime = millis(); // 更新上次更新时间

    // 读取GPS数据
    while (gpsSerial.available()) {
      char c = gpsSerial.read();
      gps.encode(c); // 处理接收到的字符
    }

    // 检查并显示GPS信息
    if (gps.location.isValid() || gps.date.isValid() || gps.time.isValid()) {
      displayGPSInfo();

      latitude = gps.location.lat();
      longitude = gps.location.lng();

      location = {latitude,longitude};
    }
  }
}

/*
  Since Led is READ_WRITE variable, onLedChange() is
  executed every time a new value is received from IoT Cloud.
*/
void onLedChange()  {
  // Add your code here to act upon Led change
  digitalWrite(ledPIN,led);
}

void displayGPSInfo() {
  if (gps.location.isValid()) {
    Serial.print("Latitude: ");
    Serial.println(gps.location.lat(), 6);
    Serial.print("Longitude: ");
    Serial.println(gps.location.lng(), 6);
  }

  if (gps.date.isValid()) {
    Serial.print("Date: ");
    Serial.print(gps.date.month());
    Serial.print("/");
    Serial.print(gps.date.day());
    Serial.print("/");
    Serial.println(gps.date.year());
  }

  if (gps.time.isValid()) {
    int localHour = (gps.time.hour() + 24 + timeZoneOffset) % 24; // 处理时区并避免负数
    Serial.print("Time: ");
    Serial.print(localHour);
    Serial.print(":");
    Serial.print(gps.time.minute());
    Serial.print(":");
    Serial.println(gps.time.second());
  }
}

thing配置

#include <WiFiS3.h>

if (gps.location.isValid() || gps.date.isValid() || gps.time.isValid()) {
      displayGPSInfo();

      latitude = gps.location.lat();
      longitude = gps.location.lng();

      location = {latitude,longitude};
    }

dashboard配置