//Controlling led by potentiometer
//Rotate the shaft of the potentiometer and you should see the luminance of the LED change.
//Email:[email protected]
//Website:www.sunfounder.com
//2015.5.7
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const int analogPin = 0;//the analog input pin attach to
const int ledPin = 9;//the led attach to
int inputValue = 0;//variable to store the value coming from sensor
int outputValue = 0;//variable to store the output value
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void setup()
{
  Serial.begin(9600);//set the serial communication baudrate as 9600
}
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void loop()
{
  inputValue = analogRead(analogPin);//read the value from the potentiometer
  Serial.print("Input: "); //print "Input"
  Serial.println(inputValue); //print inputValue
  outputValue = map(inputValue, 0, 1023, 0, 255); //Convert from 0-1023 proportional to the number of a number of from 0 to 255
  Serial.print("Output: "); //print "Output"
  Serial.println(outputValue); //print outputValue
  analogWrite(ledPin, outputValue); //turn the LED on depending on the output value
  delay(1000);
}
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