int valorcds;   
int brilloLED;  

void setup() {
	Serial.begin(9600);   
}

void loop() {
	valorcds = analogRead(0);  
	Serial.println(valorcds);
	valorcds=1023-valorcds;  
	brilloLED = map(valorcds, 0, 1023, 0, 255);
	analogWrite(5, brilloLED);
	delay(100); 
}









