// STM32 PWM Example (Equivalent to PIC PWM code)

#define PWM_PIN PA8   // TIM1 Channel 1

void setup() {
  pinMode(PWM_PIN, OUTPUT);
}

void loop() {
  analogWrite(PWM_PIN, 0);     // 0% duty cycle (LED OFF)
  delay(1000);

  analogWrite(PWM_PIN, 64);    // 25% duty cycle
  delay(1000);

  analogWrite(PWM_PIN, 128);   // 50% duty cycle
  delay(1000);

  analogWrite(PWM_PIN, 192);   // 75% duty cycle
  delay(1000);

  analogWrite(PWM_PIN, 255);   // 100% duty cycle (LED full ON)
  delay(1000);
}