README.md

diagram.json

# Wokwi Library List
# See https://docs.wokwi.com/guides/libraries

WiFi
ThingSpeak
DHT sensor library for ESPx


libraries.txt

#include <WiFi.h>
#include "DHTesp.h"
#include "ThingSpeak.h"

const int DHT_PIN = 15;
const int LED_PIN = 13;
const char *WIFI_NAME = "Wokwi-GUEST";
const char *WIFI_PASSWORD = "";
const int myChannelNumber = 2405835;
const char *myApiKey = "26R51XI1UJXRM4IF";
const char *server = "api.thingspeak.com";

DHTesp dhtSensor;
WiFiClient client;

void setup() {
  Serial.begin(115200);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  pinMode(LED_PIN, OUTPUT);
  WiFi.begin(WIFI_NAME, WIFI_PASSWORD);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Wifi not connected");
  }
  Serial.println("Wifi connected !");
  Serial.println("Local IP: " + String(WiFi.localIP()));
  WiFi.mode(WIFI_STA);
  ThingSpeak.begin(client);
}

void loop() {
  TempAndHumidity data = dhtSensor.getTempAndHumidity();
  ThingSpeak.setField(1, data.temperature);
  ThingSpeak.setField(2, data.humidity);
  if (data.temperature > 40 || data.temperature < 0 || data.humidity > 80 || data.humidity < 10) {
    ThingSpeak.setField(3, 1);
    digitalWrite(LED_PIN, HIGH);
  } else {
    ThingSpeak.setField(3, 0);
    digitalWrite(LED_PIN, LOW);
  }

  int x = ThingSpeak.writeFields(myChannelNumber, myApiKey);

  Serial.println("Temperature: " + String(data.temperature, 2) + "°C");
  Serial.println("Humidity: " + String(data.humidity, 1) + "%");

  if (x == 200) {
    Serial.println("Data pushed successfull");
  } else {
    Serial.println("Push error" + String(x));
  }
  Serial.println("====================");

  delay(10000);
}
