#define BLYNK_TEMPLATE_ID "TMPL3SWu6Blpi"
#define BLYNK_TEMPLATE_NAME "e vehicle"
#define BLYNK_AUTH_TOKEN "81t0rQC-Fj3ZYM3ZWvzfcZ0U8tAWpAHQ"
#define BLYNK_PRINT Serial
#include <WiFi.h>
#include <BlynkSimpleEsp32.h>

// Blynk Auth Token
char auth[] = "81t0rQC-Fj3ZYM3ZWvzfcZ0U8tAWpAHQ";

// WiFi credentials
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

// Motor control pins
#define DIR_PIN 19
#define STEP_PIN 18
#define ENABLE_PIN 21

// Thermistor pin
#define THERMISTOR_PIN 34

BlynkTimer timer;

// Function to read the thermistor and send the value to Blynk
void readThermistor() {
  int thermistorValue = analogRead(THERMISTOR_PIN);
  Serial.print("Thermistor Value: ");
  Serial.println(thermistorValue);
  Blynk.virtualWrite(V1, thermistorValue); // Send thermistor value to Virtual Pin V1
}

// Function to control the motor
void stepMotor(int steps, bool direction) {
  digitalWrite(DIR_PIN, direction);
  for (int i = 0; i < steps; i++) {
    digitalWrite(STEP_PIN, HIGH);
    delayMicroseconds(500); // Adjust delay for speed control
    digitalWrite(STEP_PIN, LOW);
    delayMicroseconds(500); // Adjust delay for speed control
  }
}

void setup() {
  // Initialize serial communication for debugging
  Serial.begin(115200);
  
  // Initialize motor control pins
  pinMode(DIR_PIN, OUTPUT);
  pinMode(STEP_PIN, OUTPUT);
  pinMode(ENABLE_PIN, OUTPUT);
  
  // Enable the motor driver
  digitalWrite(ENABLE_PIN, LOW);
  
  // Connect to WiFi and Blynk
  Blynk.begin(auth, ssid, pass);
  
  // Setup a function to be called every second
  timer.setInterval(1000L, readThermistor);
}

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

  // Example movement: Rotate in one direction for 200 steps, then reverse
  stepMotor(200, HIGH); // 200 steps forward
  delay(1000); // Wait 1 second
  stepMotor(200, LOW); // 200 steps backward
  delay(1000); // Wait 1 second
}