const int SENSOR = 0; // select the input pin for the
// sensor resistor
const int LED = 9; //set the LED to digital pin 9
//note that 9 is an analog pin, denoted
//by the ~ symbol
int value = 0; // variable to store the value coming
// from the sensor
void setup() {
pinMode(LED, OUTPUT); //set the LED pin (9)
//to provide outputs
}
void loop() {
value = analogRead(SENSOR); // read the value from
// the sensor
analogWrite(LED, .25 * value); //Tell the LED to light up at
//a value 1/4th of sensor input
//Potentiometer gives values from 0 to 1023
//LED receives values from 0 to 255
}
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