ARDUINO：使用 GSM SIM800L 将 GPS 数据发送到 FIREBASE

Question

我正在尝试使用 GSM SIM800L 将我在 GPS 模块中获得的数据发送到 Firebase 实时数据库，但遗憾的是它总是得到零纬度和经度结果。我已经测试了 GPS 模块并且它正在工作。如何解决这个问题...如果您知道解决方案，请帮助我..您的帮助非常有帮助..

这是我得到的结果：

POST:/Jeepney1.json?auth=yzZb6JRN6pHMoDxdtUPHhyhrCL0R1WtP9TPBWKM3
Data:{"Latitude":0.000000,"Longitude":0.000000}
Status code: 200
Response: {"Latitude":0.Longitude":0.0}
O
POST:/Jeepney1.json?auth=yzZb6JRN6pHMoDxdtUPHhyhrCL0R1WtP9TPBWKM3
Data:{"Latitude":0.000000,"Longitude":0.000000}
Status code: 200
Response: {"Latitude":0.Longitude":0.0}

以及我使用的代码：

#define TINY_GSM_MODEM_SIM800
#define TINY_GSM_RX_BUFFER 256
 
#include <TinyGsmClient.h> 
#include <ArduinoHttpClient.h>  
#include <TinyGPS++.h>
#include <SoftwareSerial.h>

static const int RXPin = 4, TXPin = 3;
TinyGPSPlus gps;
SoftwareSerial ss(RXPin, TXPin);

#define rxPin 7
#define txPin 8
SoftwareSerial sim800(txPin, rxPin);
 
const char FIREBASE_HOST[]  = "famous-segment-319603-default-rtdb.firebaseio.com";
const String FIREBASE_AUTH  = "yzZb6JRN6pHMoDxdtUPHhyhrCL0R1WtP9TPBWKM3";
const String FIREBASE_PATH  = "Jeepney1";
const int SSL_PORT          = 443;
 
char apn[]  = "internet.globe.com.ph";
char user[] = "";
char pass[] = "";
 
 
TinyGsm modem(sim800);


TinyGsmClientSecure gsm_client_secure_modem(modem, 0);
HttpClient http_client = HttpClient(gsm_client_secure_modem, FIREBASE_HOST, SSL_PORT);
 
unsigned long previousMillis = 0;
 
 
void setup()
{
  Serial.begin(9600);
  ss.begin(96000);
  Serial.println(F("device serial initialize"));
 
  sim800.begin(9600);
  Serial.println(F("SIM800L serial initialize"));
 
  Serial.println(F("Initializing modem..."));
  modem.restart();
  String modemInfo = modem.getModemInfo();
  Serial.print(F("Modem: "));
  Serial.println(modemInfo);
 
  http_client.setHttpResponseTimeout(10 * 1000); //^0 secs timeout
}
 
void loop()
{
 
  Serial.print(F("Connecting to "));
  Serial.print(apn);
  if (!modem.gprsConnect(apn, user, pass))
  {
    Serial.println(F(" fail"));
    //delay(1000);
    return;
  }
  Serial.println(F(" OK"));
 
  http_client.connect(FIREBASE_HOST, SSL_PORT);
 
  while (true) {
    if (!http_client.connected())
    {
      Serial.println();
      http_client.stop();// Shutdown
      Serial.println(F("HTTP  not connected"));
      break;
    }
    else
    {
      gps_loop();
    }
 
  }
 
}

void PostToFirebase(const char* method, const String & path , const String & data, HttpClient* http)
{
  String response;
  int statusCode = 0;
  http->connectionKeepAlive(); 
  String url;
  if (path[0] != '/')
  {
    url = "/";
  }
  url += path + ".json";
  url += "?auth=" + FIREBASE_AUTH;
  Serial.print("POST:");
  Serial.println(url);
  Serial.print("Data:");
  Serial.println(data);
 
  String contentType = "application/json";
  http->put(url, contentType, data);
 
  statusCode = http->responseStatusCode();
  Serial.print(F("Status code: "));
  Serial.println(statusCode);
  response = http->responseBody();
  Serial.print(F("Response: "));
  Serial.println(response);
  
  if (!http->connected())
  {
    Serial.println();
    http->stop();// Shutdown
    Serial.println(F("HTTP POST disconnected"));
  }
 
}
 
void gps_loop()
{

    String  latitude = String(gps.location.lat(),6);
    String  longitude = String(gps.location.lng(), 6);
    
  String Data = "{";
  Data += "\"Latitude\":" + latitude + ",";
  Data += "\"Longitude\":" + longitude + ""; 
  Data += "}";
   
  PostToFirebase("PATCH", FIREBASE_PATH, Data, &http_client);
   
   
}

Answer 1

您写的是 96000 而不是 9600。顺便说一下，我使用相同的方法，但我的 GSM 可以连接到互联网，但 http 客户端无法连接到 firebase 数据库。我在另一个帖子中看到您之前遇到过同样的问题。你是怎么解决的？