Hi, i am new in arduino programming, Please help me to solve this issue..kindly attahched error
#include <WiFi.h>
#include <DHT.h>
#include <Wire.h>
#include <SoftwareSerial.h>
#include <stdlib.h>
#include <SFE_BMP180.h>
SFE_BMP180 pressure;
#define DHTPIN 5
#define DHTTYPE DHT11
DHT dht(DHTPIN, DHTTYPE);
#define TEMPTYPE 0
#define ALTITUDE 160 // Altitude from Bussero (MI) Italy
#define ssid "Enter Your WiFi Name Here " // "WiFi Name"
#define pass "WiFi Password" // "Password"
#define server = "api.thingspeak.com";
String apiKey ="Enter the API Key";
char buffer[10];
char t_buffer[10];
char h_buffer[10];
char P_buffer[10];
SoftwareSerial ser(2, 3); // RX, TX
void setup() {
Wire.begin();
pressure.begin();
// enable debug serial
Serial.begin(9600);
Serial.println("AT");
delay(5000);
if(Serial.find("OK")){
connectWiFi();
}
void loop()
{
Trsmission(); // ESP8266
delay(60000); // 60 seconds
}
void Trsmission()
{
int8_t h = dht.readHumidity();
int16_t t = dht.readTemperature(TEMPTYPE);
char status;
double T,P,p0,a;
status = pressure.startTemperature();
if (status != 0)
{
delay(status);
status = pressure.getTemperature(T);
if (status != 0)
{
status = pressure.startPressure(3);
if (status != 0)
{
// Wait for the measurement to complete:
delay(status);
status = pressure.getPressure(P,T);
if (status != 0)
{
p0 = pressure.sealevel(P,ALTITUDE); // we're at 1655 meters (Boulder, CO)
a = pressure.altitude(P,p0);
}
else Serial.println("error retrieving pressure measurement\n");
}
else Serial.println("error starting pressure measurement\n");
}
else Serial.println("error retrieving temperature measurement\n");
}
float temp = t;
float humidity = h;
float Pression = p0;
String strTemp = dtostrf(temp, 4, 1, t_buffer);
String strHumid = dtostrf(humidity, 4, 1, h_buffer);
String strPres = dtostrf(Pression, 4, 2, P_buffer);
Serial.print("Temperature: ");
Serial.println(strTemp);
Serial.print("Humidity: ");
Serial.println(strHumid);
Serial.print("Pression: ");
Serial.println(strPres);
String cmd = "AT+CIPSTART="TCP","";
cmd += "184.106.153.149"; // api.thingspeak.com
cmd += "",80";
ser.println(cmd);
if(ser.find("Error")){
Serial.println("AT+CIPSTART error");
return;
}
if(ser.find("Error")){
Serial.println("AT+CIPSTART error");
return;
}
// prepare GET string
String getStr = "GET /update?api_key=";
getStr += apiKey;
getStr +="&field1=";
getStr += String(strTemp);
getStr +="&field2=";
getStr += String(strHumid);
getStr +="&field3=";
getStr += String(strPres);
getStr += "\r\n\r\n";
// send data length
cmd = "AT+CIPSEND=";
cmd += String(getStr.length());
ser.println(cmd);
//ser.print(getStr);
if(ser.find(">")){
ser.print(getStr);
}
else{
ser.println("AT+CIPCLOSE");
// alert user
Serial.println("AT+CIPCLOSE");
ser.println("AT+RST");
}
char buffer[10] = "";
}
