/* Battery Test Serial Writer
 * Sends a serial heartbeat that indicates that battery power
 * is still sufficient. When the battery dies, the heartbeat will stop
 */

int ledPin = 13;   // select the pin for the LED
int outputPin=9;

void setup() {
  pinMode(ledPin,OUTPUT);   // declare the LED's pin as output
  beginSerial(9600);        // connect to the serial port
  blinkLED(ledPin, 2, 100);
}

void loop () {
  
    for(int value = 0 ; value <= 255; value++) // fade in (from min to max) 
  { 
    analogWrite(outputPin, value);           // sets the value (range from 0 to 255) 
    delay(2);                            // waits for 30 milli seconds to see the dimming effect 
  } 
  for(int value = 255; value >=0; value--)   // fade out (from max to min) 
  { 
    analogWrite(outputPin, value); 
    delay(2); 
  } 
 // blinkLED(blinkerPin, 1, 1);
  int printValue = 255;
  // int printValue = analogRead(0)/4;
  Serial.println(printValue);
  //delay(998);
}




// this function blinks the an LED light as many times as requested
void blinkLED(byte targetPin, int numBlinks, int blinkRate) {
  for (int i=0; i<numBlinks; i++) {
    digitalWrite(targetPin, HIGH);   // sets the LED on
    delay(blinkRate);                     // waits for a blinkRate milliseconds
    digitalWrite(targetPin, LOW);    // sets the LED off
    delay(blinkRate);
  }
}