Question

带有Arduino Uno的ESP8266没有连接并向服务器Ubidots发送数据。

我需要像Ubidots一样将数据发送到服务器，我需要你的帮助。下面的代码，我正在使用，我没有发布数据，也无法连接到服务器。

我正在使用AT命令连接到服务器。我的ESP8266可以连接到WiFi并可以将数据发送到ThingSpeak服务器。由于我需要在我的项目中添加GPS，所以现在我正在使用Ubidots，但我的问题是我无法连接并将数据发布到服务器。

#include <DHT.h>
#include <SoftwareSerial.h>
#include <LiquidCrystal.h>


LiquidCrystal lcd(13,12,11,10,9,8);

SoftwareSerial esp(2, 3);                   //RX,TX

#define DHTPIN 5                            // Digital Pin 5
#define DHTTYPE DHT11                       // We are Using DHT11
DHT dht(DHTPIN, DHTTYPE);                   // Initialising Pin and Type of DHT

String ssid = "JioFi2_05";                           //wifi name  
String password = "80199102";                       //wifi password

String server = "things.ubidots.com";                         //ubidots server name

String token = "A1E-IcAmTnS42aTf79zQsmiNny";                          //ubidots token
String esp8266_d_id = "5a8adf76c03fee";                   //esp8266device id

String temperature_id = "5a8e9268c0ebcfede";                 //temperature variable id
String humidity_id = "5a8a73fb8083e6b";                    //humidity variable id
String heartbeat_id = "5a83f614e9049";                   //heartbeat variable id

void connectWifi()                           //wificonnection
{

  String cmd = "AT+CWJAP=\"" +ssid+"\",\"" + password + "\"";
  esp.println(cmd);
  delay(4000);

  if(esp.find("OK")){
    Serial.println("WIFI Connected!");
    lcd.setCursor(0, 0);
    lcd.println("WIFI Connected!");
    delay(1000);
  }
  else {
  connectWifi();
  Serial.println("Cannot connect to wifi");
  }
}

void reset() {

  esp.println("AT+RST");
  delay(1000);
  if(esp.find("OK") ) Serial.println("Module Reset");

}

void esp_buad_rate_change()
{
  esp.println("AT+CIOBAUD=9600");                  //change buad rate
  Serial.println("AT+CIOBAUD=9600");
}

void wifisetup()
{
  esp.println("AT");
  esp.println("AT+CWMODE=3");
  Serial.println("Wifi ready");

}
void ubi_send_data(String, String);

void setup()
{
  Serial.begin(115200);
  esp.begin(115200);
  reset();
  esp_buad_rate_change();             //changing buad rate
  Serial.begin(9600);
  esp.begin(9600);
  lcd.begin(16,2);
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.println("Wifi Setup");
  wifisetup();                         //wifi setup
  connectWifi();
}


void loop() {

  float hum =  dht.readHumidity();             // Reading Humidity Value

  float tem = dht.readTemperature();        // Reading Temperature Value

  ubi_send_data(String(temperature_id), String(tem));
  ubi_send_data(String(humidity_id), String(hum));
  ubi_send_data(String(heartbeat_id), String(heart));


}

void  ubi_send_data(String id, String values){ 

 top:
 String cmd = "AT+CIPSTART=\"TCP\",\"" + server + "\",80";
  esp.println(cmd);
  delay(3000);

  if(esp.find("OK"))
  {
    Serial.println("server found");

  String cal="{\"value\": "+values+"}";
  int len =cal.length();
  String post = "POST /api/v1.6/variables/"+id+"/values HTTP/1.1\r\n";
         post+= "Content-Type: application/json\r\n";
         post+= "Content-Length: ";
         post+= String(len)+"\r\n";
         post+= "X-Auth-Token: "+token+"\r\n";
         post+= "Host: things.ubidots.com\r\n\r\n";
         post+= "{\"value\": "+values+"}\r\n\r\n";

  String sendData = "AT+CIPSEND="+post;
  esp.print(sendData);
  Serial.println(sendData);
  delay(6000);
    if (esp.find(">"))
    {
      Serial.println("SENDING  data"); 
    }
    else
    {
       Serial.println("NOT SENDING");
       esp.println("AT+CIPCLOSE");
    }
  }
  else
  {
    Serial.println("server not found");
    goto top;
  }
}

Answer 1

请问您为什么使用AT命令？

您可以尝试实现一个简单的Arduino / ESP8266 Ubidots HTTP客户端。

带有Arduino Uno的ESP8266没有连接数据并将数据发送到Ubidots服务器

1 个答案: