#include <DHTesp.h>
#include <WiFi.h>
#include <ThingSpeak.h>
WiFiClient client;
long myChannelNumber =  2720252;
const char * myWriteAPIKey = "DDB4K671AALBREWN";
int statusCode;


char ssid[] = "Wokwi-GUEST";
char pass[] = "";  


DHTesp abinesh;
TempAndHumidity data;



int trigger=4;
int echo=5;
int motor=26;
int motor_status=0;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
 abinesh.setup(18, DHTesp::DHT22);
  pinMode(trigger, OUTPUT);
  pinMode(echo, INPUT);
  pinMode(motor, OUTPUT);
  WiFi.mode(WIFI_STA);
 ThingSpeak.begin(client); 
  
}

int finding_distance(){
  digitalWrite(trigger, HIGH);
  delay(100);
  digitalWrite(trigger, LOW);
  float a=pulseIn(echo, HIGH);
  return(a*0.034/2);
}
void loop() {
 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("\nConnected.");
  } 
 
  int distance=finding_distance();
  data = abinesh.getTempAndHumidity();

if((distance>=150 && distance<=400) && data.temperature>=40 && data.humidity<=30){
  digitalWrite(motor, HIGH);
  motor_status=1;
}

else if(distance<150||data.temperature<=35 ||data.humidity>=35){
  digitalWrite(motor, LOW);
  motor_status=0;
}
else{
  digitalWrite(motor, LOW);
  motor_status=0;
} 
 Serial.println(distance);

  Serial.println("Humi : " + String(data.humidity));
  Serial.println("Temp : " + String(data.temperature));
  Serial.println("-----------------");

ThingSpeak.setField(1, distance);
 ThingSpeak.setField(2, data.temperature);
 ThingSpeak.setField(3, data.humidity);
 ThingSpeak.setField(4, motor_status);
 

  statusCode = ThingSpeak.writeFields(myChannelNumber,myWriteAPIKey);

if(statusCode == 200) { //successful writing code
Serial.println("Channel update successful.");
}
else {
Serial.println("Problem Writing data. HTTP error code :" +
String(statusCode));
}
  
  // put your main code here, to run repeatedly:
  delay(1000); // this speeds up the simulation
}