RF Link 433MHz debug setup for Arduino

RF Link 433Mhz receiver

// Basic Aruino sketch to dump received RF signal, together with some rudimentary hysterisis/filtering
// RF Link pinouts: http://www.seeedstudio.com/wiki/433Mhz_RF_link_kit

#define rfRECEIVE A0  //RF Receiver pin = Analog pin 0
const int RXLED = 13; // internal LED

unsigned int data = 0;   // variable used to store received data
const unsigned int upperThreshold = 700;  //upper threshold value
const unsigned int lowerThreshold = 300;  //lower threshold value

void setup()
{
  pinMode(RXLED, OUTPUT);
  Serial.begin(9600);
}

boolean state = false;

void loop()
{
  data = analogRead(rfRECEIVE);

  if (data > upperThreshold) {
    digitalWrite(RXLED, LOW);
    Serial.print(data);
    Serial.println(" - LOW");
  }

  if (data < lowerThreshold) {
    digitalWrite(RXLED, HIGH);
    Serial.print(data);
    Serial.println(" - HIGH");
  }

}

RF Link Arduino Transmitter sketch

// Transmit HIGH for 1s, then LOW for 1s, then HIGH, etc

const int TRANSMITTER = PD4; // Transmitter data pin on digital pin 4
const int TXLED = 13; // internal LED

void setup()
{
  pinMode(TRANSMITTER, OUTPUT);
  pinMode(TXLED, OUTPUT);
  Serial.begin(9600);
}

void loop()
{
  transmit();
  delay(1000);
}


void transmit() {
  digitalWrite(TRANSMITTER, HIGH);   
  digitalWrite(TXLED, HIGH);   

  delay(1000);

  digitalWrite(TRANSMITTER, LOW);
  digitalWrite(TXLED, LOW); 
  
}