#include <Servo.h>

Servo servo;  // Create a servo object to control a servo
int position = 90;  // Start the servo at the middle position

void setup() {
  servo.attach(7);  //
  Serial.begin(9600);  // Initialize serial communication at 9600 bps
  servo.write(position);  // Move servo to start position
}

void loop() {
  if (Serial.available() > 0) {
    char command = Serial.read();  // Read the incoming character
    switch (command) {
      case 'L':
        position = max(0, position - 15);  // Decrease position by 15 degrees, not going below 0
        servo.write(position);
        break;
      case 'R':
        position = min(180, position + 15);  // Increase position by 15 degrees, not exceeding 180
        servo.write(position);
        break;
    }
  }
}