use with RFID

[trkmml]

Hi,
first I am sorry for my English.

thank you for the library. I use your library in my RFID Door Lock system.

when i read first RFID Card, i can transmit card holder name to receiver
but second and next read, i cant transmit anything,
is this conflict problem?
i use send procedure for transmitting

thansk for help
here is my code

RECEIVER
`#include <PinChangeInterruptHandler.h>
#include <RFReceiver.h>

// Listen on digital pin 2
RFReceiver receiver(8);

void setup() {
Serial.begin(9600);
receiver.begin();
}

void loop() {
char msg[MAX_PACKAGE_SIZE];
byte senderId = 0;
byte packageId = 0;
byte len = receiver.recvPackage((byte *)msg, &senderId, &packageId);

Serial.print("Message: ");

Serial.println(msg);
}`

TRANSMITTER

`enum {INIT_LCD, SCAN_TAG, KEY_IN_PASSWORD} state = INIT_LCD;
//#include <Streaming.h>
// define for nfc
#include <SPI.h>
#include <MFRC522.h>
#include "pitches.h"
#define NOT_FOUND -1
//#define Role 8
#define RST_PIN 9
#define SS_PIN 10
#define Yesil 15
#define Kirmizi 14
#define buton 16
MFRC522 mfrc522(SS_PIN, RST_PIN); // Create MFRC522 instance
char* ourCode = "4422";
int currentPosition = 0;
#define NR_KNOWN_CARDS 14
#define CARD_SIZE 4
int acildi=0;
#include <RFTransmitter.h>
#define NODE_ID 1
#define OUTPUT_PIN 7
int melody[] = {
NOTE_E6, NOTE_E4
};

// note durations: 4 = quarter note, 8 = eighth note, etc.:
int noteDurations[] = {
2 , 4
};
// init paralle arrays
byte knownCards[NR_KNOWN_CARDS][CARD_SIZE] = {
{0xDE, 0x60, 0x92, 0xAB},
{0x40, 0xB8, 0x55, 0x7A},
{0x40, 0x7B, 0x57, 0x7A},
{0x10, 0xA5, 0x50, 0x7A},
{0x50, 0x06, 0x56, 0x7A},
{0xE0, 0xA5, 0x52, 0x7A},
{0x50, 0x82, 0x5C, 0x7A},
{0x94, 0x2F, 0x64, 0xB8},
{0xC4, 0x8B, 0xBA, 0xA7},
{0x44, 0x60, 0x6A, 0xB8},
{0xBB, 0x46, 0x8D, 0xC9},
{0x0F, 0x9B, 0x8E, 0xC9},
{0x89, 0xD5, 0x8C, 0xC9},
{0xD2, 0x11, 0x8E, 0xC9},

};

char name[NR_KNOWN_CARDS][14] = {
"ASDASD",
"ASDASD",
"ZXCZXC",
"FGHFGH",
"TYUTRYU",
"BNMBNM",
"ERTERT",
"QWQWERQWE",
"NMÖN",
"UIOUIO",
"SDFGDFG",
"657856",
"DFGDF",
"DGDFG"
};

char password[NR_KNOWN_CARDS][5] = {
"3434",
"8888"
};

int n; // current tag index

// define for keypad
#include <Keypad.h>

const byte ROWS = 1;
const byte COLS = 4;
bool sifreGirisi=false;
int buton_deger = 0;
//define the cymbols on the buttons of the keypads
char hexaKeys[ROWS][COLS] = {
{'1','2','3','4'}
};
byte rowPins[ROWS] = {2};
byte colPins[COLS] = {5,6,3,4};

int count = 0;
char keys[5];
unsigned long time;

Keypad customKeypad = Keypad( makeKeymap(hexaKeys), rowPins, colPins, ROWS, COLS);

// define for lcd
#include <Wire.h>
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x3F, 16, 2);

// define for led
//#include <DigitalToggle.h>

void setup() {
// setup nfc
Serial.begin(9600);
while (!Serial);
SPI.begin();
mfrc522.PCD_Init();
pinMode(Kirmizi, OUTPUT);
pinMode(Yesil, OUTPUT);
// setup keypad (assumed serial began)
keys[4] = 0;
pinMode(buton,INPUT);
// setup lcd
lcd.begin();

// setup led
// pinMode(Role, OUTPUT);

}

void loop() {
if (!sifreGirisi)
{
buton_deger = digitalRead(buton);
//Serial.print(buton_deger);
if (buton_deger > 0)
{
sifreGirisi=true;
lcd.clear();
lcd.backlight();
lcd.setCursor(0,0);
lcd.print("Sifreli Giris");
lcd.setCursor(0,1);
lcd.print("Sifre : ");
return;
}
init_lcd();
scan_new_card();
key_in_password();
}
else
{

int l;
char key = customKeypad.getKey();
// Serial.print(key);
if (int(key) != 0) {

lcd.setCursor(12,1);
lcd.print("    ");
lcd.setCursor(12,1);

for (l=0; l<=currentPosition; ++l)
{
  lcd.print("*");
}

if (key == ourCode[currentPosition])
  {
    ++currentPosition;
    if (currentPosition == 4)
    {
      unlockDoor();
      currentPosition = 0;
    }
  } else {
    invalidCode();
    currentPosition = 0;
  }

}
}
}
void invalidCode()
{
// servo.write(SERVO_CLOSED_ANGLE);
digitalWrite(Kirmizi, HIGH);
//digitalWrite(servo, HIGH);
//digitalWrite(servo, LOW);
clearScreen();
lcd.setCursor(0,0);
lcd.print("Giris Engellendi");
lcd.setCursor(0,1);
lcd.print("Yanlis Sifre");
digitalWrite(Kirmizi, LOW);
state = INIT_LCD;
sifreGirisi=false;
send("Yanlis Sifre");//göndereceğimiz mesaj
delay(2000);
}

void unlockDoor()
{
digitalWrite(Yesil, HIGH);
clearScreen();
lcd.setCursor(0,0);
lcd.print("Giris Basarili");
lcd.setCursor(0,1);
lcd.print("Hosgeldiniz");

//add any code to unlock the door here
// digitalWrite(Role, HIGH);
// servo.write(SERVO_OPEN_ANGLE);
digitalWrite(Yesil, LOW);
state = INIT_LCD;
sifreGirisi=false;
send("Sifreli Giris");//göndereceğimiz mesaj
delay(2000);
//digitalWrite(Role, LOW);
}

void displayCodeEntryScreen()
{
clearScreen();
lcd.setCursor(0,0);
lcd.print("Sifre Girisi");
}

void clearScreen()
{
lcd.clear();
}
void scan_new_card() {
if (state != SCAN_TAG) {
return;
}
if ( ! mfrc522.PICC_IsNewCardPresent()) {
return;
}
if ( ! mfrc522.PICC_ReadCardSerial()) {
return;
}
mfrc522.PICC_HaltA();
dump_byte_array(mfrc522.uid.uidByte, mfrc522.uid.size);
Serial.print(F(" ("));
Serial.print(mfrc522.uid.size, DEC);
Serial.println(F(")"));
n = indexOf(mfrc522.uid.uidByte, mfrc522.uid.size);
lcd.backlight();
if ( n != NOT_FOUND) {
Serial.println(name[n]);
show_user(name[n]);
time = millis();
Serial.println(time);
state = KEY_IN_PASSWORD;
} else {
user_not_found();
state = INIT_LCD;
}
}

void dump_byte_array(byte *buffer, byte bufferSize) {
for (byte i = 0; i < bufferSize; i++) {
Serial.print(buffer[i] < 0x10 ? " 0" : " ");
Serial.print(buffer[i], HEX);
}
}

int indexOf(byte *buffer, byte bufferSize) {
if (CARD_SIZE == bufferSize) {
for (byte i = 0; i < NR_KNOWN_CARDS; i++) {
byte j;
for (j = 0; j < CARD_SIZE; j++) {
if (buffer[j] != knownCards[i][j]) break;
}

  if (j == CARD_SIZE) return i;
}

}

return NOT_FOUND;
}

void key_in_password() {
if (state != KEY_IN_PASSWORD) {
return;
}
if (millis() - time > 1000) { // exceed 10 seconds ?
state = INIT_LCD;
}

}

void init_lcd() {
if (state != INIT_LCD) {
return;
}
lcd.clear();
lcd.noBacklight();
lcd.setCursor(0,0);
lcd.print("Hosgeldiniz :)");
lcd.setCursor(0,1);
lcd.print("Kartinizi Okutunuz");
state = SCAN_TAG;
}

void user_not_found() {
lcd.clear();
lcd.setCursor(0,0);
lcd.print("Bulunamadi!");
digitalWrite(Kirmizi , HIGH);
lcd.backlight();
delay(2000);
digitalWrite(Kirmizi , LOW);
lcd.noBacklight();
send("Tanimsiz Kart");//göndereceğimiz mesaj
}

void show_user(char name[10]) {
lcd.clear();
lcd.setCursor(0,0);
lcd.print("Merhaba ");
lcd.print(name);
lcd.setCursor(0,1);
lcd.print("Hosgeldin :)");
lcd.backlight();
digitalWrite(Yesil , HIGH);
//digitalWrite(Role, HIGH);
delay(2000);
digitalWrite(Yesil , LOW);
// digitalWrite(Role, LOW);
lcd.noBacklight();
send(name);//göndereceğimiz mesaj

// state = INIT_LCD;

}

void toggle_led() {
// digitalToggle(ledPin);
}
void send (char *message) /mesajı ulaştırmak için
loop kodu send fonksiyonunu çağırır ve bu da mesajın ulaştırılması
için bekler./
{
RFTransmitter transmitter(OUTPUT_PIN, NODE_ID);
transmitter.send((byte *)message, strlen(message) + 1);
// vw_set_ptt_inverted(true);
// vw_set_tx_pin(7);// edit okoman: bu parametre programda yoktu sonradan eklendi
// vw_setup(300); /2sn?de bir çalıştırmak için (edit okoman: yaklaşık veri trahasfer hızıdır hatalı açıklama yapılmış)virtualwire?ı başlatır./
// vw_send((uint8_t *)message, sizeof(message));
// vw_wait_tx(); // mesaj gidene kadar bekle.
// Serial.println(strlen(message));
//message=(char *)"";
//delay(200);
//software_Reset();
}

void software_Reset() // Restarts program from beginning but does not reset the peripherals and registers
{
asm volatile (" jmp 0");
}
`