/*
 * This Arduino sketch controls a servo motor using commands received via
 * a Bluetooth module (HC-05). The Bluetooth module is connected to the
 * Arduino's serial pins, and the servo is controlled based on the received
 * commands.
 */

#include <Servo.h>

Servo myServo;

void setup() {
  // Initialize serial communication
  Serial.begin(9600);
  // Attach the servo to pin D3
  myServo.attach(3);
}

void loop() {
  // Check if data is available to read
  if (Serial.available() > 0) {
    // Read the incoming byte
    char command = Serial.read();
    // Convert the command to an angle (0-180)
    int angle = command - '0';
    angle = map(angle, 0, 9, 0, 180);
    // Move the servo to the specified angle
    myServo.write(angle);
  }
}