#include <Servo.h>  // Include the built-in Arduino Servo library

Servo myServo;  // Create a servo object to control our motor

int angle = 0;    // Variable to store the current servo position

void setup() {
  // Attach the servo motor object to digital Pin 9
  myServo.attach(9);
  
  // Initialize Serial Monitor for position tracking
  Serial.begin(9600);
  Serial.println("--- Servo Sweep Project Initialized ---");
}

void loop() {
  // Sweep forward from 0 to 180 degrees
  Serial.println("Sweeping forward...");
  for (angle = 0; angle <= 180; angle += 1) { 
    myServo.write(angle);              // Tell servo to go to this position
    delay(15);                         // Wait 15ms for the motor arm to physical reach it
  }
  
  delay(1000); // Wait 1 second at the 180-degree mark
  
  // Sweep backward from 180 down to 0 degrees
  Serial.println("Sweeping backward...");
  for (angle = 180; angle >= 0; angle -= 1) { 
    myServo.write(angle);              // Tell servo to go to this position
    delay(15);                         // Wait 15ms for the arm to move
  }
  
  delay(1000); // Wait 1 second at the 0-degree mark
}