private void DataReceived(object sender, SerialDataReceivedEventArgs e)
{
// event oocurs on receiving data from ID card
if (!(sender is SerialPort port))
{
return;
}
// read line by line
while (port.BytesToRead > 0)
{
var c = (char)port.ReadChar();
if (c == '\n')
{
var s = _buffer.ToString();
// raise event if uid found
if (s.StartsWith("UID:"))
{
UidReceived?.Invoke(sender, s.Substring(4).Trim());
}
_buffer.Clear();
continue;
}
_buffer.Append(c);
}
}
public static void SetUidReceivedDelegate(UidReceived ur)
{
uidReceived = ur;
}
