#define BLYNK_TEMPLATE_ID "TMPL3OKdUURnq"
#define BLYNK_TEMPLATE_NAME "EV Monitoring"
#define BLYNK_AUTH_TOKEN "0oaSoQ1Ou9q2--JitDXvoleOfEAoifRy"

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include "DHTesp.h"

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

const int DHT_PIN = 15;
DHTesp dhtSensor;

const int pir = 23;

// Potentiometer is connected to GPIO 34 (Analog ADC1_CH6) 
const int potPin = 34;
// variable for storing the potentiometer value
int potValue = 0;

BlynkTimer timer;

void setup() {
  Serial.begin(115200);
  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  pinMode(pir, INPUT);
  timer.setInterval(1000L, sendData); // Send sensor data every 1 second
  Serial.println("Hello, ESP32!");
}

void sendData() {
  // Read temperature
  float t = dhtSensor.getTemperature();
  if (isnan(t)) {
    Serial.println("Failed to read from DHT sensor!");
  } else {
    Serial.print("Temperature: ");
    Serial.print(t);
    Serial.println(" °C");
    Blynk.virtualWrite(V2, t); // Send temperature data to Blynk
  }

  // Read PIR sensor
  int motionDetected = digitalRead(pir);
  Serial.print("Motion Detected: ");
  Serial.println(motionDetected);
  Blynk.virtualWrite(V1, motionDetected); // Send PIR sensor data to Blynk

  // Read potentiometer
  potValue = analogRead(potPin);
  float volts =  (potValue / 4096.0)*100;
  Serial.print("Battery Health: ");
  Serial.println(volts);
  Blynk.virtualWrite(V0, volts); // Send potentiometer data to Blynk
}

void loop() {
  Blynk.run();
  timer.run();
}