#include <TimerOne.h>

#define PWM_PIN 9   // Pin 9 for PWM output

void setup() {
  // Initialize serial communication at 9600 baud rate
  Serial.begin(9600);

  // Initialize Timer1
  Timer1.initialize(16);  // Set the period in microseconds for 62,500 Hz frequency (1 / 62500 = 16 microseconds)

  // Start the PWM on pin 9 with a 50% duty cycle
  Timer1.pwm(PWM_PIN, 512);  // 1024 is full duty cycle in TimerOne, so 512 is 50%

  Serial.println("PWM setup complete. Send duty cycle percentage (0-100).");
}

void loop() {
  if (Serial.available()) {
    int dutyPercent = Serial.parseInt();
    if (dutyPercent >= 0 && dutyPercent <= 100) {
      // Map the percentage to TimerOne's range
      int duty = map(dutyPercent, 0, 100, 0, 1023);
      Timer1.setPwmDuty(PWM_PIN, duty);
      Serial.print("Duty cycle set to: ");
      Serial.print(dutyPercent);
      Serial.println("%");
    } else {
      Serial.println("Error: Duty cycle must be between 0% and 100%");
    }
  }
}