#include <DHTesp.h>
#include <WiFi.h>
#include <ThingSpeak.h>
WiFiClient client;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";
unsigned long channelID = 2682882;
const char* writeAPIKey = "4I8WFGI8M6HP6LHI";
DHTesp banu;
TempAndHumidity data;
const int redLed = 12;
int statusCode;
void setup() {
ThingSpeak.begin(client);
Serial.begin(115200);
banu.setup(18, DHTesp::DHT22);
pinMode(redLed, OUTPUT);
WiFi.mode(WIFI_STA);
}
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.");
} 
data = banu.getTempAndHumidity();
float humi = data.humidity;
Serial.println("Humi: " + String(humi));
digitalWrite(redLed, LOW);
if (humi <= 60) {
digitalWrite(redLed, HIGH);
Serial.println("virtual fan is on");
} 
else {
digitalWrite(redLed, LOW);
Serial.println("virtual all fan is off");
} 
ThingSpeak.setField(1, data.humidity);
statusCode = ThingSpeak.writeFields(channelID,writeAPIKey);
if(statusCode == 200) { 
Serial.println("Channel update successful.");
}
else {
Serial.println("Problem Writing data. HTTP error code :" +
String(statusCode));
}
delay(10000); 
}