// RCWL0516_nano_led_bare.ino

#define sensorPin 7 // RCWL-0516 connected to this pin
#define ledRed 10 // LED connected to this pin
#define ledGreen 0// LED connected to this pin
int sensorVal = 0; // initial RCWL-0516 output value as seen by Nano
int led_fire_duration = 5000;

void setup() {

Serial.begin (9600); // initialize serial communication:
Serial.print ("let’s start");
Serial.println ();

pinMode (sensorPin, INPUT);   // RCWL-0516 output is input for Nano
pinMode (ledRed, OUTPUT);     // LED as OUTPUT
pinMode (ledGreen, OUTPUT);     // LED as OUTPUT
digitalWrite (ledGreen, LOW);   // LED off at start
digitalWrite (ledRed, LOW);   // LED off at start

}

void loop(){

sensorVal = digitalRead (sensorPin);                     // read sensor value

if (sensorVal == LOW)
  {
   digitalWrite(ledRed, LOW);
   digitalWrite(ledGreen, HIGH);
   Serial.println ("You are not moving");
   }

else
   {
   digitalWrite(ledRed, HIGH);
   digitalWrite(ledGreen, LOW);
   Serial.println ("You are moving");
   delay (led_fire_duration);                                        // during this period the led will be ON
}
}