/*
  Code to program 433 MHz KeyFob

  Transmitter must be connected to Arduino Pin #10
  Receiver must be connected to Arduino Pin #7

*/

#include <RCSwitch.h>

long unsigned int Key[] = {0000001, 0000002, 0000003, 0000004 };
int Keys = 4;


RCSwitch mySwitch = RCSwitch();

void setup() {

  Serial.begin(9600);

  delay(1000);
  Serial.println("Press 'Send' to start programming or press Key on remote to see the value.");


  mySwitch.enableTransmit(10); // Transmitter is connected to Arduino Pin #10
  mySwitch.enableReceive(4);  // RF Receiver on inerrupt 4 => that is pin #7 on Micro

  // Optional set pulse length.
  // mySwitch.setPulseLength(320);

  // Optional set protocol (default is 1, will work for most outlets)
  // mySwitch.setProtocol(2);

  // Optional set number of transmission repetitions.
  // mySwitch.setRepeatTransmit(15);

}

void loop() {
  int i;
  
  while (!Serial.available()) {    // Receive Key Codes until Send was pressed

    if (mySwitch.available()) {
      long unsigned int value = mySwitch.getReceivedValue();
      Serial.print("Received Key: ");
      Serial.println(value);
      mySwitch.resetAvailable();
    }
  }
  while (Serial.available()) Serial.read();

  Serial.println();

  for (i = 0; i < Keys; i++) {

     Serial.print("Sending Key: ");
     Serial.print(i);
     Serial.print(", Value: ");
     Serial.println(Key[i]);
     Serial.println("Press 'Send' for next Key.");

    while (!Serial.available()) {
      mySwitch.send(Key[i], 24);
      Serial.print(".");
      delay(100);
    }
    Serial.println();
    while (Serial.available()) Serial.read();
  }
  Serial.println("Press 'Send' to start programming or press Key on remote to see the value.");
}