Reading form the Blue Dial

void setup()
{
Serial.begin(9600);
Serial.println(“Analog Input Example”);
pinMode(9, OUTPUT); // Red LED
}

void loop()
{
int dialValue = analogRead(0) / 4;
Serial.println(dialValue);
if (dialValue > 39)
digitalWrite(9, HIGH); // LED ON
else
digitalWrite(9, LOW); // LED OFF
}