#include <DHT.h>
#include <WiFi.h>
#include "ThingSpeak.h"

#define DHTPIN 21
#define DHTTYPE DHT22

const char* ssid     = "Wokwi-GUEST";         // The SSID (name) of the Wi-Fi network you want to connect to
const char* password = "";  
DHT dht22 (DHTPIN, DHTTYPE);

 
void setup() {

  Serial.begin(115200); //1bit=10µs
  pinMode(15, INPUT);
  pinMode(14, OUTPUT);
  Serial.println("\ntest capteur DTH22");
  dht22.begin();
  
  WiFi.begin(ssid, password);             // Connect to the network
  Serial.print("Connecting to ");
  Serial.print(ssid); Serial.println(" ...");

  int i = 0;
  while (WiFi.status() != WL_CONNECTED) { // Wait for the Wi-Fi to connect
    delay(1000);
    Serial.print(++i); Serial.print(' ');
  }

  Serial.println('\n');
  Serial.println("Connection established!");  
  Serial.print("IP address:\t");
  Serial.println(WiFi.localIP());         // Send the IP address of the ESP8266 to the computer

}
float h;
float t;
void loop() {
  float nh = dht22.readHumidity();
  float nt = dht22.readTemperature();
  if(nh  == h && t == nt){
    delay(2000);
    return;
  }
  h = nh;
  t = nt;
  
  

  Serial.print("Humidity: ");
  Serial.println(h);
  Serial.print("Temperature: ");
  Serial.println(t);
  if(t > 50) digitalWrite(14, HIGH);
  else digitalWrite(14, LOW);
  delay(15000); //Collecting period should be : >1.7 second
}