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

char ssid[] = "Wokwi GUEST";
char pass[] = "";
WiFiClient client;
unsigned long myChannelNumber = 2076920;
const char * myWriteAPIKey = "BYLHM365IO5NBCZ4";

DHTesp dhtSensor;
TempAndHumidity data;
const int DHT_PIN = 15;
const int trig=2;
const int echo=4;
long duration;
long distance;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  dhtSensor.setup(DHT_PIN,DHTesp::DHT22);
  pinMode(trig, OUTPUT);
  pinMode(echo, INPUT);
  WiFi.mode(WiFi_STA);
  ThingSpeak.begin(client);
  dhtSensor.setup();
}

void loop() {
// put your main code here, to run repeatedly:
data=dhtSensor.getTempAndHumidity();
Serial.println("Humi:"+String(data.humidity));
Serial.println("Temp:"+String(data.temperature));
Serial.println("...........");
delay(1000);
digitalWrite(trig,LOW);
delayMicroseconds(2);
digitalWrite(trig,HIGH);
delayMicroseconds(10); 
digitalWrite(trig, LOW);

duration = pulseIn(echo,HIGH);
distance = (duration +0.034/2)+1;
Serial.println("distance"+ String(distance));
Serial.println("...........");
if(WiFi.status() != WL_CONNECTED)
{
  Serial.print("Attempting to connect");
  while(WiFi.status()!=WL_CONNECTED)
  {
   WiFi.begin(ssid,pass);
   Serial.print(".");
   delay(5000);
}
Serial.println("\connected.");
}
ThingSpeak.setField(1,data.humidity);
ThingSpeak.setField(2,data.temperature);
ThingSpeak.setField(3,distance);
statusCode=ThingSpeak.writeFields(myChannelNumber,myWriteAPIKey);

if(statusCode == 200){
  Serial.println("channel update sucessful");
}
else{
  Serial.println("problem writing data. HTTP error code:" + String(statusCode));
}
delay(1000);
}