/*
Analog Input
Demonstrates analog input by reading an analog sensor on analog pin 0 and
turning on and off a light emitting diode(LED)  connected to digital pin 13.
The amount of time the LED will be on and off depends on
the value obtained by analogRead().

The circuit:
* Potentiometer attached to analog input 0
* center pin of the potentiometer to the analog pin
* one side pin (either one) to ground
* the other side pin to +5V
* LED anode (long leg) attached to digital output 13
* LED cathode (short leg) attached to ground

* Note: because most Arduinos have a built-in LED attached
to pin 13 on the board, the LED is optional.


Created by David Cuartielles
Modified 16 Jun 2009
By Tom Igoe

http://arduino.cc/en/Tutorial/AnalogInput

*/

int sensorPin = 0;    // select the input pin for the potentiometer
int ledPin = 12;      // select the pin for the LED
int fadeValue = 0;  // variable to store the value coming from the sensor

void setup() {
// declare the ledPin as an OUTPUT:
pinMode(ledPin, OUTPUT); 
Serial.begin(300);
}

void loop() {
// read the value from the sensor:
Serial.println(fadeValue);
fadeValue = analogRead(sensorPin);


digitalWrite(ledPin, HIGH);   // set the LED on
delay(fadeValue*20);                  // wait for a second
digitalWrite(ledPin, LOW);    // set the LED off
delay(fadeValue*20);           

//analogWrite(ledPin, fadeValue); 

}

woven wall with LEDs

Jongock