// Include the necessary library for Arduino
#include <Arduino.h>
// Define the pin for the LED
const int ledPin = 9;
void setup() {
// Set the LED pin as an output
pinMode(ledPin, OUTPUT);
}
void loop() {
// Use analogWrite to control the brightness of the LED
analogWrite(ledPin, 128); // Set the brightness to 50% (0-255 range)
delay(1000); // Wait for 1 second
analogWrite(ledPin, 255); // Set the brightness to maximum
delay(1000); // Wait for 1 second
analogWrite(ledPin, 0); // Turn off the LED
delay(1000); // Wait for 1 second
}