#define POT_PIN A0 

#define LED_PIN 9 
void setup() { 

pinMode(LED_PIN, OUTPUT); 

Serial.begin(9600); // Start serial communication 

} 

 

void loop() { 

int potValue = analogRead(POT_PIN); 

analogWrite(LED_PIN, map(potValue, 0, 1023, 0, 255)); 

 

Serial.println(potValue); // Print raw input value 

 

delay(200); // Slight delay for readability 

}