#define BLYNK_TEMPLATE_ID "TMPL3QEj38B_E"
#define BLYNK_TEMPLATE_NAME "quadcopter"

#define BLYNK_AUTH_TOKEN "IMUQaPtzRiEhR81ErhGe7E7ZP-GJN5el"
#include <ESP32Servo.h>
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
 
char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";
 
Servo servoMotor;  
int servoPin = 4;  
int currentAngle = 0; 
int targetAngle = 0;  
int step = 1;  
int delayTime = 10; 
 
BLYNK_WRITE(V4) {
  targetAngle = param.asInt();  
 
void setup() {
  Blynk.begin(auth, ssid, pass);
  servoMotor.attach(servoPin);  
}
 
void loop() {
  Blynk.run();
 
  // Gradually move the servo motor to the target angle
  if (currentAngle < targetAngle) {
    currentAngle += step;
    if (currentAngle > 180) {
      currentAngle = 180;
    }
    servoMotor.write(currentAngle);
    delay(delayTime);
  } else if (currentAngle > targetAngle) {
    currentAngle -= step;
    if (currentAngle < 0) {
      currentAngle = 0;
    }
    servoMotor.write(currentAngle);
    delay(delayTime);
  }
}