README.md

diagram.json

#include <WiFi.h>
#include <DHTesp.h>
#include <ESP32Servo.h>
#include <HTTPClient.h>
#include <ThingSpeak.h>

// Wifi
const char *WIFI_NAME = "Wokwi-GUEST";
const char *WIFI_PASSWORD = "";

// Thingspeak
unsigned long myChannelNumber = 2405836;
const char *myAPIKey = "DJ8PF7L6ASVSGZXN";

// Pins
const int pirPin = 2; // pir
const int beeperPin = 12;
const int ledPin = 13;
const int dhtPin = 15;
const int servoPin = 18;
const int photoresistorAnalogPin = A0;
const int photoresistorDigitalPin = 33;

// Variables
const float GAMMA = 0.7;
const float RL10 = 50;
int day = 0;
int pos = 0;
Servo servo;
WiFiClient client;
DHTesp dhtSensor;

void setup()
{
  Serial.begin(115200);
  dhtSensor.setup(dhtPin, DHTesp::DHT22);

  pinMode(ledPin, OUTPUT);
  pinMode(beeperPin, OUTPUT);
  pinMode(pirPin, INPUT);
  pinMode(photoresistorAnalogPin, INPUT);
  servo.attach(servoPin, 500, 2400);

  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();
  String temperature = String(data.temperature, 2);
  String humidity = String(data.humidity, 2);

  // Photoresistor
  float valueLDR = analogRead(photoresistorAnalogPin);
  valueLDR = map(valueLDR, 4095, 0, 1024, 0);
  float voltage = valueLDR / 1024. * 5;
  float resistance = 2000 * voltage / (1 - voltage / 5);
  float lux = pow(RL10 * 1e3 * pow(10, GAMMA) / resistance, (1 / GAMMA));
  day = digitalRead(photoresistorDigitalPin);

  Serial.println("Temperature: " + String(temperature));
  Serial.println("Humidity: " + String(humidity));
  Serial.println("Light: " + String(lux));
  Serial.println("Day: " + String(day));

  // Moution Sensor and Beeper
  if (digitalRead(pirPin) == HIGH) {
    Serial.println("Opening Gates");
    ThingSpeak.setField(4, 1);
    digitalWrite(beeperPin, HIGH);
    while (pos <= 180) {
      servo.write(pos);
      delay(15);
      pos++;
    }
  } else {
    Serial.println("Closing Gates");
    ThingSpeak.setField(4, 0);
    digitalWrite(beeperPin, LOW);
    while (pos >= 0) {
      servo.write(pos);
      delay(15);
      pos--;
    }
  }

  ThingSpeak.setField(1, temperature);
  ThingSpeak.setField(2, humidity);
  ThingSpeak.setField(3, lux);

  // Write to ThingSpeak.
  int x = ThingSpeak.writeFields(myChannelNumber, myAPIKey);
  if (x == 200)
    Serial.println("Data pushed successfull");
  else
    Serial.println("Push error" + String(x));
  Serial.println("====================");

  delay(100);
}


village-gate.ino

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

DHT sensor library for ESPx
ESP32Servo
ThingSpeak
