groamer2

/* YourDuino Electronic Brick Test:
 Single Track Reflective Sensor AB-010201
 terry@yourduino.com */

/*-----( Declare Constants )-----*/
#define SWITCHPIN 3
#define LEDPIN    13  // The onboard LED

/*-----( Declare Variables )-----*/
int  switch_state;  /* Holds the last state of the switch */

void setup()   /*----( SETUP: RUNS ONCE )----*/
{
  pinMode(LEDPIN, OUTPUT);

}/*--(end setup )---*/


void loop()   /*----( LOOP: RUNS CONSTANTLY )----*/

// This module is ACTIVE LOW when a reflection is seen
{

  switch_state = digitalRead(SWITCHPIN);
  if (switch_state == LOW)
  {
    digitalWrite(LEDPIN, HIGH);
  }
  else
  {
    digitalWrite(LEDPIN, LOW);
  }
}/* --(end main loop )-- */

/* ( THE END ) */