//Date: 17.09.2025
//Name: Rajaram Parida
//Redg: 2241016203
//Section: 28
//Exp. No.: 5.1
int brightness = 0;
int fadeAmount = 25;
int buttonState = 0;
int lastButtonState = 0;
bool increasing = true;
void setup() {
pinMode(9, OUTPUT);
pinMode(8, INPUT);
Serial.begin(9600);
}
void loop() {
buttonState = digitalRead(8);
if (buttonState == HIGH && lastButtonState == LOW) {
if (increasing) {
brightness += fadeAmount;
if (brightness >= 255) {
brightness = 255;
increasing = false;
}
} else {
brightness -= fadeAmount;
if (brightness <= 0) {
brightness = 0;
increasing = true;
}
}
analogWrite(9, brightness);
Serial.print("Brightness: ");
Serial.println(brightness);
delay(200);
}
lastButtonState = buttonState;
}