public RfidReader(ILogger <RfidReader> logger)
{
_logger = logger;
_rfidController = new RFIDControllerMfrc522(Pi.Spi.Channel0, 500000, Pi.Gpio[22]);
_whenCardDetected = new Subject <CardData>();
}
private static void ReadCard()
{
Console.Clear();
"Testing RFID".Info();
var device = new RFIDControllerMfrc522(Pi.Spi.Channel0, 500000, Pi.Gpio[18]);
while (true)
{
// If a card is found
if (device.DetectCard() != RFIDControllerMfrc522.Status.AllOk)
{
continue;
}
// Get the UID of the card
var uidResponse = device.ReadCardUniqueId();
// If we have the UID, continue
if (uidResponse.Status != RFIDControllerMfrc522.Status.AllOk)
{
continue;
}
var cardUid = uidResponse.Data;
// Print UID
$"Card UID: {cardUid[0]},{cardUid[1]},{cardUid[2]},{cardUid[3]}".Info();
// Select the scanned tag
device.SelectCardUniqueId(cardUid);
// Authenticate sector
if (device.AuthenticateCard1A(RFIDControllerMfrc522.DefaultAuthKey, cardUid, 19) == RFIDControllerMfrc522.Status.AllOk)
{
var data = device.CardReadData(16);
var text = Encoding.ASCII.GetString(data.Data);
$" Message read: {text}".Info();
}
else
{
"Authentication error".Error();
}
device.ClearCardSelection();
ExitMessage.WriteLine();
while (true)
{
var input = Console.ReadKey(true).Key;
if (input != ConsoleKey.Escape)
{
continue;
}
break;
}
break;
}
}
private static void WriteCard()
{
Console.Clear();
"Testing RFID".Info();
var device = new RFIDControllerMfrc522(Pi.Spi.Channel0, 500000, Pi.Gpio[18]);
var userInput = Terminal.ReadLine("Insert a message to be written in the card (16 characters only)").Truncate(16);
"Place the card on the sensor".Info();
while (true)
{
// If a card is found
if (device.DetectCard() != RFIDControllerMfrc522.Status.AllOk)
{
continue;
}
// Get the UID of the card
var uidResponse = device.ReadCardUniqueId();
// If we have the UID, continue
if (uidResponse.Status != RFIDControllerMfrc522.Status.AllOk)
{
continue;
}
var cardUid = uidResponse.Data;
// Select the scanned tag
device.SelectCardUniqueId(cardUid);
// Writing data to sector 1 blocks
// Authenticate sector
if (device.AuthenticateCard1A(RFIDControllerMfrc522.DefaultAuthKey, cardUid, 19) == RFIDControllerMfrc522.Status.AllOk)
{
userInput = (userInput + new string(' ', 16)).Truncate(16);
device.CardWriteData(16, Encoding.ASCII.GetBytes(userInput));
}
device.ClearCardSelection();
"Data has been written".Info();
Terminal.WriteLine(ExitMessage);
while (true)
{
var input = Console.ReadKey(true).Key;
if (input != ConsoleKey.Escape)
{
continue;
}
break;
}
break;
}
}
private static void CardDetected()
{
Console.Clear();
"Testing RFID".Info();
var device = new RFIDControllerMfrc522(Pi.Spi.Channel0, 500000, Pi.Gpio[18]);
while (true)
{
// If a card is found
if (device.DetectCard() != RFIDControllerMfrc522.Status.AllOk)
{
continue;
}
"Card detected".Info();
// Get the UID of the card
var uidResponse = device.ReadCardUniqueId();
// If we have the UID, continue
if (uidResponse.Status != RFIDControllerMfrc522.Status.AllOk)
{
continue;
}
var cardUid = uidResponse.Data;
// Print UID
$"Card UID: {cardUid[0]},{cardUid[1]},{cardUid[2]},{cardUid[3]}".Info();
Terminal.WriteLine(ExitMessage);
while (true)
{
var input = Console.ReadKey(true).Key;
if (input != ConsoleKey.Escape)
{
continue;
}
break;
}
break;
}
}
public static void Init()
{
Pi.Init <BootstrapWiringPi>();
// set IO Pin to Output
_blinkingPin = Pi.Gpio[17];
_blinkingPin.PinMode = GpioPinDriveMode.Output;
_pulsePin = Pi.Gpio[18];
_pulsePin.PinMode = GpioPinDriveMode.Output;
Console.WriteLine("** GPIO Initialization done **");
// init RC522 Reader
// default constructor uses the BCM22 pin
_nfcReader = new RFIDControllerMfrc522();
Console.WriteLine("** RC522 Initialization done **");
_initDone = true;
Console.WriteLine("\n**** Raspberry Informations: ****\n");
Console.WriteLine(Pi.Info);
}
private void LoginScreen()
{
var dev = new RFIDControllerMfrc522(Pi.Spi.Channel0, Pi.Spi.Channel0Frequency, Pi.Gpio[18]);
while (!loggedIn)
{
if (dev.DetectCard() != RFIDControllerMfrc522.Status.AllOk)
{
continue;
}
var uidResponse = dev.ReadCardUniqueId();
if (uidResponse.Status != RFIDControllerMfrc522.Status.AllOk)
{
continue;
}
var cardUid = uidResponse.Data;
txt_login.Text = $"Card UID: {uidResponse}";
loggedIn = true;
}
}
private static void TestRfidController()
{
var device = new RFIDControllerMfrc522();
while (true)
{
// If a card is found
if (device.DetectCard() == RFIDControllerMfrc522.Status.AllOk)
{
"Card detected".Info();
}
// Get the UID of the card
var uidResponse = device.ReadCardUniqueId();
// If we have the UID, continue
if (uidResponse.Status == RFIDControllerMfrc522.Status.AllOk)
{
var cardUid = uidResponse.Data;
// Print UID
$"Card UID: {cardUid[0]},{cardUid[1]},{cardUid[2]},{cardUid[3]}".Info();
// Select the scanned tag
device.SelectCardUniqueId(cardUid);
// Check if authenticated
if (device.AuthenticateCard1A(RFIDControllerMfrc522.DefaultAuthKey, cardUid) == RFIDControllerMfrc522.Status.AllOk)
{
device.ReadRegister(RFIDControllerMfrc522.Register.Status2Reg);
device.ClearCardSelection();
}
else
{
"Authentication error".Error();
}
}
}
}
private static void TestRfidController()
{
"Testing RFID".Info();
var device = new RFIDControllerMfrc522(Pi.Spi.Channel1, 500000, Pi.Gpio[18]);
while (true)
{
// If a card is found
if (device.DetectCard() == RFIDControllerMfrc522.Status.AllOk)
{
"Card detected".Info();
// Get the UID of the card
var uidResponse = device.ReadCardUniqueId();
// If we have the UID, continue
if (uidResponse.Status == RFIDControllerMfrc522.Status.AllOk)
{
var cardUid = uidResponse.Data;
// Print UID
$"Card UID: {cardUid[0]},{cardUid[1]},{cardUid[2]},{cardUid[3]}".Info();
// Select the scanned tag
device.SelectCardUniqueId(cardUid);
// Writing data to sector 1 blocks
// Authenticate sector
if (device.AuthenticateCard1A(RFIDControllerMfrc522.DefaultAuthKey, cardUid, 7) == RFIDControllerMfrc522.Status.AllOk)
{
var data = new byte[16 * 3];
for (var x = 0; x < data.Length; x++)
{
data[x] = (byte)(x + 65);
}
for(int b = 0; b < 3; b++)
{
device.CardWriteData((byte)(4 + b), data.Skip(b * 16).Take(16).ToArray());
}
}
// Reading data
var continueReading = true;
for (int s = 0; s < 16 && continueReading; s++)
{
// Authenticate sector
if (device.AuthenticateCard1A(RFIDControllerMfrc522.DefaultAuthKey, cardUid, (byte)((4 * s) + 3)) == RFIDControllerMfrc522.Status.AllOk)
{
$"Sector {s}".Info();
for (int b = 0; b < 3 && continueReading; b++)
{
var data = device.CardReadData((byte)((4 * s) + b));
if (data.Status != RFIDControllerMfrc522.Status.AllOk)
{
continueReading = false;
break;
}
$" Block {b} ({data.Data.Length} bytes): {string.Join(" ", data.Data.Select(x => x.ToString("X2")))}".Info();
}
}
else
{
"Authentication error".Error();
break;
}
}
device.ClearCardSelection();
}
}
}
}
private static void ReadAllCardSectors()
{
Console.Clear();
"Testing RFID".Info();
var device = new RFIDControllerMfrc522(Pi.Spi.Channel0, 500000, Pi.Gpio[18]);
while (true)
{
// If a card is found
if (device.DetectCard() != RFIDControllerMfrc522.Status.AllOk)
{
continue;
}
// Get the UID of the card
var uidResponse = device.ReadCardUniqueId();
// If we have the UID, continue
if (uidResponse.Status != RFIDControllerMfrc522.Status.AllOk)
{
continue;
}
var cardUid = uidResponse.Data;
// Print UID
$"Card UID: {cardUid[0]},{cardUid[1]},{cardUid[2]},{cardUid[3]}".Info();
// Select the scanned tag
device.SelectCardUniqueId(cardUid);
// Reading data
var continueReading = true;
for (var s = 0; s < 16 && continueReading; s++)
{
// Authenticate sector
if (device.AuthenticateCard1A(RFIDControllerMfrc522.DefaultAuthKey, cardUid, (byte)((4 * s) + 3)) == RFIDControllerMfrc522.Status.AllOk)
{
$"Sector {s}".Info();
for (var b = 0; b < 3 && continueReading; b++)
{
var data = device.CardReadData((byte)((4 * s) + b));
if (data.Status != RFIDControllerMfrc522.Status.AllOk)
{
continueReading = false;
break;
}
$" Block {b} ({data.Data.Length} bytes): {string.Join(" ", data.Data.Select(x => x.ToString("X2")))}".Info();
}
}
else
{
$"Authentication error, sector {s}".Error();
}
}
device.ClearCardSelection();
Terminal.WriteLine(ExitMessage);
while (true)
{
var input = Console.ReadKey(true).Key;
if (input != ConsoleKey.Escape)
{
continue;
}
break;
}
break;
}
}
private async Task Run()
{
"Idle".Info();
var device = new RFIDControllerMfrc522(Pi.Spi.Channel0, 500000, Pi.Gpio[22]);
while (true)
{
// If a card is found
if (device.DetectCard() != RFIDControllerMfrc522.Status.AllOk)
{
continue;
}
// Get the UID of the card
var uidResponse = device.ReadCardUniqueId();
// If we have the Uid continue
if (uidResponse.Status != RFIDControllerMfrc522.Status.AllOk)
{
continue;
}
var uid = uidResponse.Data;
device.SelectCardUniqueId(uid);
// Authentication
if (device.AuthenticateCard1A(RFIDControllerMfrc522.DefaultAuthKey, uid, 19) == RFIDControllerMfrc522.Status.AllOk)
{
var data = device.CardReadData(16);
var secretText = Encoding.ASCII.GetString(data.Data);
if (secretText == "HelloHelloHellos")
{
// Card with access
"Access granted!".Info();
ControlLed.BlinkLed(Pi.Gpio[BcmPin.Gpio22], -1);
await _unitOfWork.Logs.AddAsync(new Log
{
Uid = uid,
AttemptType = AttemptType.Success,
Message = "Door has been successfully unlocked."
}).ConfigureAwait(false);
await _doorService.UpdateDoorStateAsync(DoorStatus.Open).ConfigureAwait(false);
_access = true;
//Wait until button is pressed.
while (!_readAgain)
{
await Task.Delay(500).ConfigureAwait(false);
}
_readAgain = false;
ControlLed.BlinkLed(Pi.Gpio[BcmPin.Gpio22], 0);
await _doorService.UpdateDoorStateAsync(DoorStatus.Closed).ConfigureAwait(false);
}
else
{
// Card without access
"Access denied!".Info();
ControlLed.BlinkLed(Pi.Gpio[BcmPin.Gpio18], 3000);
await _unitOfWork.Logs.AddAsync(new Log
{
AttemptType = AttemptType.Fail,
Message = "Card does not have permission to unlock door!"
}).ConfigureAwait(false);
}
}
else
{
// Unknown Card
ControlLed.BlinkLed(Pi.Gpio[BcmPin.Gpio18], 3000);
await _unitOfWork.Logs.AddAsync(new Log
{
AttemptType = AttemptType.UnkownUid,
Message = "Authentication error, can't read card!"
}).ConfigureAwait(false);
}
device.ClearCardSelection();
await Task.Delay(TimeSpan.FromSeconds(1)).ConfigureAwait(false);
}
}
