#include<WiFi.h>;
#include<ThingSpeak.h>
#include<DHTesp.h>
DHTesp dhtsensor;
TempAndHumidity data;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";
WiFiClient client;
unsigned long myChannelNumber = 2089266;
const char * myWriteAPIKey = "YMZTQ2AU9UN7ZFTU";
int statusCode;
const int DHT_PIN = 15;
const int tri = 13;
const int echo = 12;
float distance;
long dur;

void setup()
{
  Serial.begin(115200);
    dhtsensor.setup(DHT_PIN, DHTesp::DHT22);
      WiFi.mode(WIFI_STA);
        ThingSpeak.begin(client);
          pinMode(tri, OUTPUT);
            pinMode(echo, INPUT);
            }

            long getDistance() {
              digitalWrite(tri, LOW);
                delayMicroseconds(2);
                  digitalWrite(tri, HIGH);
                    delayMicroseconds(10);
                      digitalWrite(tri, LOW);
                        dur = pulseIn(echo, HIGH);
                          return (dur * 0.034 / 2) + 1;
                            Serial.println(dur);
                            }
                            void loop() {
                              data = dhtsensor.getTempAndHumidity();
                                Serial.println("humidity ; " + String(data.humidity, 1));
                                  Serial.println("temperature ; " + String(data.temperature, 2));

                                    delay(1000);
                                      distance = getDistance();
                                        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("\nConnected");
                                                                                }

                                                                                  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 successful.");
                                                                                                }
                                                                                                  else {
                                                                                                      Serial.println("Problem writing data." + String(statusCode));

                                                                                                        }
                                                                                                          delay(15000);
                                                                                                          }