#define BLYNK_TEMPLATE_ID "TMPL4VGhyHYlI"
#define BLYNK_TEMPLATE_NAME "stepper motor"
#define BLYNK_AUTH_TOKEN "ebPtwMGGWADPM5YJl0ElcYLZWgHhWiqD"

#define BLYNK_PRINT Serial
#include <WiFi.h>
#include <BlynkSimpleEsp32.h>

char auth[] = BLYNK_AUTH_TOKEN; // Auth Token

char ssid[] = "Wokwi-GUEST"; // Nama hotspot yang digunakan
char pass[] = "";           // Password hotspot yang digunakan

const int dirPin = 4;
const int stepPin = 2;
const int stepsPerRevolution = 200;


BLYNK_WRITE(V0)
{
  
  int speed = param.asInt(); // assigning incoming value from pin V1 to a variable  
 
  digitalWrite(dirPin, HIGH);   // Set motor direction clockwise
 
  // Spin motor slowly
  for(int x = 0; x < stepsPerRevolution; x++)
  {
    digitalWrite(stepPin, HIGH);
    delayMicroseconds(speed);
    digitalWrite(stepPin, LOW);
    delayMicroseconds(speed);
  }

  Blynk.virtualWrite(V0, speed);
  delay(1000); // Wait a second
 Serial.println("forward 1"); 
  // Set motor direction counterclockwise
  digitalWrite(dirPin, LOW);
 
  // Spin motor quickly
  for(int x = 0; x < stepsPerRevolution; x++)
  {
    digitalWrite(stepPin, HIGH);
    delayMicroseconds(speed);
    digitalWrite(stepPin, LOW);
    delayMicroseconds(speed);
  }
  delay(1000); // Wait a second
 Serial.println("backward 1");
  Blynk.virtualWrite(V0, speed);

}

void setup()
{
   Serial.begin(9600);
  // Declare pins as Outputs
  pinMode(stepPin, OUTPUT);
  pinMode(dirPin, OUTPUT);

  
  Blynk.begin(auth, ssid, pass); // Memulai Blynk

}

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