#include <ThingSpeak.h>
#include <WiFi.h>
int trigger_pin = 14;
int echo_pin = 12;
int led_pin = 16;
#include "DHTesp.h"
DHTesp dhtSensor;
TempAndHumidity data;
const int DHT_PIN = 18;
char ssid[]="Wokwi-GUEST";
char pass[]="";
WiFiClient client;
unsigned long myChannelNumber=2642956;
const char * myWriteAPIKey="L27SXEAOLUVXOT4X" ;
int statusCode;

void setup()
{
Serial.begin(115200);
pinMode(trigger_pin, OUTPUT);
pinMode(echo_pin, INPUT);
pinMode(led_pin, OUTPUT);
WiFi.mode(WIFI_STA);
  ThingSpeak.begin(client);
dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
}
int rocket()
{
  digitalWrite(trigger_pin, LOW);
  delay(10);
  digitalWrite(trigger_pin, HIGH);
  Serial.println("ok");
  delay(100);
  digitalWrite(trigger_pin, LOW);

  float rs = pulseIn(echo_pin,HIGH);
  return(rs*0.034/2)+1;
  delay(1000);
}
void loop()
{
  data=dhtSensor.getTempAndHumidity();
  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("\n connected");
   }
int c = rocket();
if(c>200 && data.humidity<30 && data.temperature>70)
{
  digitalWrite(led_pin, HIGH);
  }
  
else if(c<200 && data.humidity>30 && data.temperature<70)
{
  digitalWrite(led_pin, LOW);
  }

Serial.println(String(c));

 Serial.println("humi:"+String(data.humidity,1));
  Serial.println("Temp:"+String(data.temperature,2));
  Serial.println("...................");
  delay(1000);
  ThingSpeak.setField(1,data.humidity);
  ThingSpeak.setField(2,data.temperature);
  ThingSpeak.setField(3,c);
  statusCode=ThingSpeak.writeFields(myChannelNumber,myWriteAPIKey);
  
  if(statusCode == 200){
    Serial.println("channel updated success");

  }

  else{
    Serial.println("Problem writing data http error code"+String(statusCode));

  }

}