本文介绍了如何在wpf应用程序中验证mfrc522 arduino uid的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我正在开发一个Project,当您在MFRC522阅读器上传递picc时,它会验证WPF应用程序中的UID。每次我尝试它看起来似乎没有认出picc。



该程序理论上应该像这样工作:



Arduino MFRC522防护罩寻找picc,它找到一个获取uid并在串口中打印它。



然后,c#programm读取串口中的内容并将其保存在变量中。一个void,然后它验证该变量是否与UID匹配'if'循环,如果匹配特定的UID,如果它没有发送'no',则发送到端口'ok'。



我的程序,知道uid是什么,并将其复制到必须验证它的地方,总是发送没有。



我尝试过:



这是我的arduino代码:



Hi, I´m working on a Project, that verifies a UID in a WPF application when you pass a picc on the MFRC522 reader. Every time I´ve tried it looks like it didn´t recognised the picc.

The programm should theoretically work like this:

The Arduino MFRC522 shield looks for a picc, when it finds one it gets the uid and print it in the serial port.

The c# programm, then, reads what´s in the serial port and saves it in a variable. A void, then it verifies if that variable matches the UID with a 'if' loop and if matches a specific UID, sends to the port 'ok' if it doesn´t it sends 'no'.

And my programm, knowing what the uid is, and copying it to where it has to verify it, sends always no.

What I have tried:

Here is my arduino code:

#include <SPI.h>
#include <MFRC522.h>

#define RST_PIN         9           // Configurable, see typical pin layout above
#define SS_PIN          10          // Configurable, see typical pin layout above

MFRC522 nfc(SS_PIN, RST_PIN);   // Create nfc instance.

MFRC522::MIFARE_Key key;

String dato;

void setup()
{
  Serial.begin(9600); // Initialize serial communications with the PC
  while (!Serial);    // Do nothing if no serial port is opened (added for Arduinos based on ATMEGA32U4)
  SPI.begin();        // Init SPI bus
  nfc.PCD_Init(); // Init nfc car
}


void loop()
{
  if(Serial.available()){
    delay(100);  
    while(Serial.available() > 0){
        // statement
        dato = Serial.readString();
    }
  }
  if(dato == "ok"){
      admited();
      dato = "";
  }
  if(dato == "no"){
      noAdmited();
      dato = "";
  }
  if ( ! nfc.PICC_IsNewCardPresent())
        return;

    // Select one of the cards
    if ( ! nfc.PICC_ReadCardSerial())
        return;
    // Show some details of the PICC (that is: the tag/card)
    Serial.println();
  for (byte i = 0; i < nfc.uid.size; i++) {
    Serial.print(nfc.uid.uidByte[i] < 0x10 ? "0" : "");
    Serial.print(nfc.uid.uidByte[i], HEX);
   } 
  
  delay(500);
  }

  void admited()
  {
    Serial.println();
    Serial.println("The picc is been admited");
  }

  void noAdmited()
  {
    Serial.println();
    Serial.println("The hasn´t been admiteed ");
  }





这是我的c#代码:





and here is my c# code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.IO.Ports;
using System.Threading;

namespace nfc_to_wpf
{
    /// <summary>
    /// Lógica de interacción para MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        SerialPort port1 = new SerialPort();
        private delegate void SetTextDeleg(string text);
        string data_saved;
        string data2;

        public MainWindow()
        {
            InitializeComponent();
            loadConnections();
        }

        private void loadConnections()
        {
            port1.BaudRate = 9600;
            port1.PortName = "COM7";
            try
            {
                port1.Open();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
            recieveData();
        }

        private void recieveData()
        {
            if (port1.IsOpen == true)
            {
                port1.DataReceived += port1_DataReceived;
            }
        }

        void port1_DataReceived(object sender, SerialDataReceivedEventArgs e)
        {

            Thread.Sleep(100);
            try
            {
                string data = port1.ReadLine();
                Dispatcher.BeginInvoke(new SetTextDeleg(si_DataReceived), new object[] { data });
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }


            // Invokes the delegate on the UI thread, and sends the data that was received to the invoked method. 

            // ---- The "si_DataReceived" method will be executed on the UI thread which allows populating of the textbox. 


        }

        private void si_DataReceived(string data)  //Modifica la entrada del serial a legible
        {
            data_saved = data;
            tb1.Text = data_saved;
            tryToSend();
        }

        private void tryToSend()
        {
            if (port1.IsOpen == true)
            {
                if (data_saved == "239A0701")
                {
                    port1.Write("ok");
                    tb1.Text = "Sended ok";
                    tb1.Text = data_saved;
                    data2 = data_saved;
                    tb2.Text = data2;
                }
                else
                {
                    tb1.Text = "Sended no";
                    data2 = data_saved;
                    tb2.Text = data2;
                }
            }
        }
    }
}





所以你可以看到,当arduino读取一个picc时,它获取UID并将其打印在SerialPort中。当c#programm接收数据时,从端口(也就是uid)验证它并且它是否与UID匹配:239A0701它向端口发送'ok',如果不是,则向端口发送'no'。但它总是(在我的程序中),我现在不知道,发送否,并且从不匹配uid(知道我正在使用的picc有那个uid(239A0701));



请帮助我;谢谢!!



So as you can see, when the arduino reads a picc, it gets the UID and prints it in the SerialPort. When the c# programm receives data, from the port (which is the uid) verifies it and if it matches the UID: 239A0701 it send 'ok' to the port and if it doesn´t it sends 'no' to the port. But it always (in my programm), and I don´t now why, sends no, and never matches the uid (knowing that the picc I´m using has that uid (239A0701));

Please, help me; Thank You!!

推荐答案

Serial.println() 

(告诉程序执行回车和换行)你必须把

(which tells the program to do a carriage return and a new line) you have to put

Serial.print("\n");

只创建新行,问题解决了。



所以arduino代码应该会结束喜欢这个



which only creates the new line, problema solved.

So the arduino code should end up like this

#include <spi.h>
#include <mfrc522.h>

#define RST_PIN         9           // Configurable, see typical pin layout above
#define SS_PIN          10          // Configurable, see typical pin layout above

MFRC522 nfc(SS_PIN, RST_PIN);   // Create nfc instance.

MFRC522::MIFARE_Key key;
String uid;
byte try1[5];
String dato;
int number;
byte readCard[1];
void setup()
{
  Serial.begin(9600); // Initialize serial communications with the PC
  while (!Serial);    // Do nothing if no serial port is opened (added for Arduinos based on ATMEGA32U4)
  SPI.begin();        // Init SPI bus
  nfc.PCD_Init(); // Init nfc car
}


void loop()
{
  if(Serial.available()){
    delay(100);  
    while(Serial.available() > 0){
        // statement
        dato = Serial.readString();
    }
  }
  if(dato == "ok"){
      admited();
      dato = "";
  }
  if(dato == "no"){
      noAdmited();
      dato = "";
  }
  if ( ! nfc.PICC_IsNewCardPresent())
        return;

    // Select one of the cards
    if ( ! nfc.PICC_ReadCardSerial())
        return;
    // Show some details of the PICC (that is: the tag/card)
   
  
  
  
  int contador = 0;
  for (byte i = 0; i < nfc.uid.size; i++) {
      contador++;
      Serial.print(nfc.uid.uidByte[i] < 0x10 ? "0" : "");
      Serial.print(nfc.uid.uidByte[i], HEX);
      if(contador == 4){
        Serial.print("\n");
      }
   }

   
  delay(500);
   
  
  }

  void admited()
  {
    Serial.println("La tarjeta ha sido admitida");
  }

  void noAdmited()
  {
    Serial.println("La tarjeta no ha sido admitida");
  }







c#夏普代码还可以,但你可以删除一些不必要的东西... c#代码最终会像:






And the c# Sharp code is ok but you can remove some uneccesary things... The c# code would end up like:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.IO.Ports;
using try1.Properties;
using System.Threading;

namespace try1
{
    /// <summary>
    /// Lógica de interacción para MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        SerialPort port1 = new SerialPort();
        SerialPort port2 = new SerialPort();
        string port1_com = Settings.Default.com_port_1;
        int port1_baud_rate = Settings.Default.baud_port_1;
        private delegate void SetTextDeleg(string text);
        string data_saved;
        string button_1_data = Settings.Default.button1_data;
        string button_2_data = Settings.Default.button2_data;
        string button_3_data = Settings.Default.button3_data;
        string button_4_data = Settings.Default.button4_data;
        string uid = Settings.Default.uid;
        string choosen_button;
        string completed_uid;

        public MainWindow()
        {
            InitializeComponent();
            loadSetup();
            loadPort1();
            proveUID();
            loadButtonsOnComboxAndloadButtons();
            serialPortReceiving();
            serialPortSending();
        }

        private void proveUID() //Void para verficar el UID de las tarjetas
        {
            if (port1.IsOpen == true) //Si el puerto está abierto
            {
                    pb_sending.IsIndeterminate = false; //Interfaz
                    pb_sending.Value = 10;
                  
                    if (uid == "239A0701") //Si el uid se corresponde a el de la tarjeta
                    {
                        port1.Write("ok"); //Enviar por el serial 'ok'
                        lb_serial_sending.Content = "";
                        lb_serial_sending.Content = "Sended 'ok' to serial";
                    }
                    else //Si no
                    {
                        
                    }
                
            }
        }

        private void loadButtonsOnComboxAndloadButtons() //Añade los botones al comboBox y añade el setup de estos, pertenece a la interfaz gráfica
        {
            cb_choose_button.Text = choosen_button;
            cb_choose_button.Items.Add("Button1");
            cb_choose_button.Items.Add("Button2");
            cb_choose_button.Items.Add("Button3");
            cb_choose_button.Items.Add("Button4");
            if (button_1_data == "")
            {
                button1.Content = "Button1";
            }
            else
            {
                button1.Content = button_1_data;
            }
            if (button_2_data == "")
            {
                button2.Content = "Button2";
            }
            else
            {
                button2.Content = button_2_data;
            }
            if (button_3_data == "")
            {
                button3.Content = "Button3";
            }
            else
            {
                button3.Content = button_3_data;
            }
            if (button_4_data == "")
            {
                button4.Content = "Button4";
            }
            else
            {
                button4.Content = button_4_data;
            }
            
        }

        

        private void serialPortSending() //Configura el pb_sending, pertenece a la interfaz gráfica
        {
            if (port1.IsOpen == true) //Mientras el puerto está abierto
            {
                pb_sending.Foreground = new SolidColorBrush(System.Windows.Media.Colors.Violet);
                pb_sending.IsIndeterminate = true;
            }
            if (port1.IsOpen == false) //Mientras el puerto está cerrado
            {
                pb_sending.Foreground = new SolidColorBrush(System.Windows.Media.Colors.Red);
                pb_sending.IsIndeterminate = true;
            }
            
        }

        private void serialPortReceiving() //Busca si el serial port1 escribe algo
        {
            pb_receiving.Foreground = new SolidColorBrush(System.Windows.Media.Colors.Turquoise);
            pb_receiving.IsIndeterminate = true;
            if (port1.IsOpen == true) //Mientras el puerto esté abierto
            {
                port1.DataReceived += new SerialDataReceivedEventHandler(sp_DataReceived); //Cuando recibe información del serial genera un evento con una string
            }
            if (port1.IsOpen == false) //Mientras el puerto este cerrado
            {
                pb_receiving.Foreground = new SolidColorBrush(System.Windows.Media.Colors.Red);
                pb_receiving.IsIndeterminate = true;
            }
            
        }

        private void sp_DataReceived(object sender, SerialDataReceivedEventArgs e) //Si recibe data del serial
        {
            Thread.Sleep(100);
            try //Prueba
            {
                string data = port1.ReadLine(); //Lee una línea del serial y la pasa a string (variable local)
                Dispatcher.BeginInvoke(new SetTextDeleg(si_DataReceived), new object[] { data }); //Pasar variable local a variable general (no arduino eventhandler string)
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message); //Muestra errores
            }
            
            
        }

        private void si_DataReceived(string data)  //Modifica la entrada del serial a legible
        {
            uid = "";
            data_saved = "";
            data_saved = data; //Pasa la información en data a una variable global (dispacher generated)
            tb_data.Text = data_saved;
            uid = data; //Pasa la información en data a una variable global (utilizada solo en el reconociemiento de tarjetas)
            lb_serial_port.Content = "";
            lb_serial_port.Content = data_saved;
            pb_receiving.IsIndeterminate = true;
            proveUID(); //Llama al void proveUID()
        }

        

        private void loadSetup() //Carga la interfaz gráfica predeterminada
        {
            if (port1.IsOpen == false)
            {
                pb_connection_1.IsIndeterminate = true;
            }
            cb_port_1.Text = port1_com;
            cb_baud_rate_1.Text = port1_baud_rate.ToString();
            lb_status_1.Content = "";
            lb_status_1.Content = "Last save port '" + port1_com + "' and baud rate '" + port1_baud_rate + "'";
            bt_close_port1.IsEnabled = false;
            lb_serial_sending.Content = "";
            lb_serial_port.Content = "";
        }

        private void loadPort1() //Load com ports and baudrates of port 1
        {
            cb_port_1.Items.Clear();
            cb_baud_rate_1.Items.Clear();
            foreach (string ports_1 in SerialPort.GetPortNames())
            {
                cb_port_1.Items.Add(ports_1);
            }
            cb_baud_rate_1.Items.Add("300");  
            cb_baud_rate_1.Items.Add("1200");
            cb_baud_rate_1.Items.Add("2400");
            cb_baud_rate_1.Items.Add("4800");
            cb_baud_rate_1.Items.Add("9600");
            cb_baud_rate_1.Items.Add("19200");
            cb_baud_rate_1.Items.Add("38400");      
            cb_baud_rate_1.Items.Add("57600");
            cb_baud_rate_1.Items.Add("115200");
            cb_baud_rate_1.Items.Add("230400");
            cb_baud_rate_1.Items.Add("250000");
        }

        private void cb_port_1_DropDownClosed(object sender, EventArgs e) //Reacciona cuando se cierra el combo box que elige los puertos de port1
        {
            if (cb_port_1.SelectedItem != null) //Si has seleccionado algo
            {
                port1_com = cb_port_1.SelectedItem.ToString(); //Guarda lo que has seleccionado a un string
                Settings.Default.com_port_1 = port1_com; //Guardar en la memoria a largo plazo de la aplicación
                Settings.Default.Save(); //Guarda cualquier dato de tipo Settings.Default.
                lb_status_1.Content = "";
                lb_status_1.Content = "You selected " + port1_com;
                cb_port_1.Text = port1_com;
            }
            else //Si no
            {
                MessageBox.Show("You hav to choose something");
            }
        }

        private void cb_baud_rate_1_DropDownClosed(object sender, EventArgs e) //Reacciona cuando se cierra el cb que elige el baud rate del port1
        {
            if (cb_baud_rate_1.SelectedItem != null) //Si has seleccionado algo
            {
                port1_baud_rate = int.Parse(cb_baud_rate_1.Text); //Seleccion -> Int32 -> variable
                Settings.Default.baud_port_1 = port1_baud_rate; //Guarda en la memoria a largo plazo
                Settings.Default.Save(); //Guarda todo lo que sea Settings.Default.
                lb_status_1.Content = "";
                lb_status_1.Content = "You selected " + port1_baud_rate;
                cb_baud_rate_1.Text = port1_baud_rate.ToString();
            }
            else //Si no
            {
                MessageBox.Show("You have to select something");
            }
        }

        private void bt_connect_1_Click(object sender, RoutedEventArgs e) //Reacciona cuando se pulsa el bt de conectar
        {
            conneciont_on_port1();
        }

        private void conneciont_on_port1() //se intenta connectar a port1
        {
            pb_connection_1.Foreground = new SolidColorBrush(System.Windows.Media.Colors.Green);
            pb_connection_1.IsIndeterminate = true;
            if (port1_com != "")
            {
                if (port1_baud_rate.ToString() != "") 
                {
                    try //Conexión al port1
                    {
                        lb_status_1.Content = "";
                        lb_status_1.Content = "Trying to connect " + port1_com + " at " + port1_baud_rate + " baud rate";
                        port1.BaudRate = port1_baud_rate; //El BaudRate es = a la variable port1_baud_rate
                        port1.PortName = port1_com;//El puerto es = a la variable port1_com
                        port1.Open(); //Abre el puerto port1 (definido al principio)
                        serialPortSending(); //Llama al void serialPortSending
                        serialPortReceiving();
                        pb_connection_1.IsIndeterminate = false;
                        pb_connection_1.Value = 10;
                        lb_status_1.Content = "";
                        lb_status_1.Content = "Connected succesfully";
                        bt_connect_1.IsEnabled = false;
                        bt_close_port1.IsEnabled = true;

                        

                    }
                    catch (Exception ex)
                    {
                        MessageBox.Show(ex.Message);
                        pb_connection_1.IsIndeterminate = false;
                        pb_connection_1.Foreground = new SolidColorBrush(System.Windows.Media.Colors.Red);
                        pb_connection_1.Value = 10;
                        lb_status_1.Content = "";
                        lb_status_1.Content = ex.Message;
                        bt_connect_1.IsEnabled = true;
                        bt_close_port1.IsEnabled = false;
                    }
                }

            }
            else //Si no
            {
                if (port1_com == "") //Excepciones
                {
                    MessageBox.Show("You didn´t select a 'COM' port, please select one");
                }
                else if (port1_baud_rate.ToString() == "")
                {
                    MessageBox.Show("You have to select a 'BAUD' rate");
                }
            }
        }

        private void bt_close_port1_Click(object sender, RoutedEventArgs e) //Intenta cerrar port1
        {
            close_port_1();  //Llama al void que cierra el puerto
        }

        private void close_port_1() //Void de cerrado del port
        {
            if (port1.IsOpen == true)
            {
                try
                {
                    port1.Close(); //Cierra el puerto
                    lb_status_1.Content = "";
                    lb_status_1.Content = "The port has been closed succesfully";
                    pb_connection_1.IsIndeterminate = false;
                    pb_connection_1.Foreground = new SolidColorBrush(System.Windows.Media.Colors.DodgerBlue);
                    pb_connection_1.Value = 10;
                    bt_connect_1.IsEnabled = true;
                    bt_close_port1.IsEnabled = false;
                    serialPortReceiving();
                    serialPortSending();
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message);
                    pb_connection_1.Foreground = new SolidColorBrush(System.Windows.Media.Colors.Red);
                    pb_connection_1.Value = 10;
                    lb_status_1.Content = "";
                    lb_status_1.Content = ex.Message;
                    bt_connect_1.IsEnabled = false;
                    bt_close_port1.IsEnabled = true;
                }
            }
        }

        private void bt_refresh_port_1_Click(object sender, RoutedEventArgs e) //Vuelve a buscar puertos com
        {
            loadPort1(); //Llama al void que busca los puertos
            pb_connection_1.IsIndeterminate = false;
            pb_connection_1.Foreground = new SolidColorBrush(System.Windows.Media.Colors.Coral);
            pb_connection_1.Value = 10;
        }

        private void bt_send_Click(object sender, RoutedEventArgs e) //Envía el texto a el port1
        {
            if (port1.IsOpen == true)
            {
                if (tb_cmd.Text != "") //Para que no haya errores
                {
                    try
                    {
                        pb_sending.IsIndeterminate = false;
                        pb_sending.Foreground = new SolidColorBrush(System.Windows.Media.Colors.Violet);
                        pb_sending.Value = 10;
                        port1.Write(tb_cmd.Text); //Envía lo que haya en el tb
                        lb_serial_sending.Content = "";
                        lb_serial_sending.Content = "Sended " + tb_cmd.Text + " to serial port";
                    }
                    catch (Exception ex)
                    {
                        MessageBox.Show(ex.Message);
                        lb_port1.Content = "";
                        lb_port1.Content = ex.Message;
                        pb_sending.IsIndeterminate = false;
                        pb_sending.Foreground = new SolidColorBrush(System.Windows.Media.Colors.Red);
                        pb_sending.Value = 10;
                    }
                }
            }
            else
            {
                lb_port1.Content = "";
                lb_port1.Content = "You are not connected to any port";
            }
            }

        private void tb_cmd_GotMouseCapture(object sender, MouseEventArgs e) //pb_sending action, interfaz gráfica
        {
            pb_sending.IsIndeterminate = true;
        }

        private void cb_choose_button_DropDownClosed(object sender, EventArgs e) //Guarda la seleccion del combo box para elegir el Button a una variable
        {
            
            if (cb_choose_button.SelectedItem != null) //Guarda la seleccion en una variable
            {
                choosen_button = cb_choose_button.Text;
                lb_serial_port.Content = "";
                lb_serial_port.Content = choosen_button + " was selected in the comboBox";
            }
            else
            {
                MessageBox.Show("You have to select something");
            }
        }

        private void bt_set_cmd_as_Click(object sender, RoutedEventArgs e) //Establece el código al Button
        {
            choosen_buttonVoid();
            
        }

        private void choosen_buttonVoid() //Guarda la selección en una variable que será llamada cuando pulses ese botón
        {
            if (choosen_button != "")
            {
                if (choosen_button == "Button1")
                {
                    if (tb_cmd.Text != "")
                    {
                        button_1_data = tb_cmd.Text; //Guarda en una variable lo que haya en el tb
                        lb_serial_port.Content = "Guardando " + button_1_data;
                        button1.Content = button_1_data; //La variable anterior la ponemos como nombre de el botón seleccionado
                        Settings.Default.button1_data = button_1_data;//Guardar en la memoria de larga distancia
                        Settings.Default.Save(); //Guardar todo lo que esté dentro de Settings.Default.
                    }
                }
                if (choosen_button == "Button2")
                {
                    if (tb_cmd.Text != "")
                    {
                        button_2_data = tb_cmd.Text;
                        lb_serial_port.Content = "Guardando " + button_2_data;
                        button2.Content = button_2_data;
                        Settings.Default.button2_data = button_2_data;
                        Settings.Default.Save();
                    }
                }
                if (choosen_button == "Button3")
                {
                    if (tb_cmd.Text != "")
                    {
                        button_3_data = tb_cmd.Text;
                        lb_serial_port.Content = "Guardando " + button_3_data;
                        button3.Content = button_3_data;
                        Settings.Default.button3_data = button_3_data;
                        Settings.Default.Save();
                    }
                }
                if (choosen_button == "Button4")
                {
                    if (tb_cmd.Text != "")
                    {
                        button_4_data = tb_cmd.Text;
                        lb_serial_port.Content = "Guardando " + button_4_data;
                        button4.Content = button_4_data;
                        Settings.Default.button4_data = button_4_data;
                        Settings.Default.Save();
                    }
                }
            }
            else
            {
                MessageBox.Show("Please, write the code on the textBox");
            }
        }

        private void button1_Click(object sender, RoutedEventArgs e) //Si hay algo guardado en button1 enviar al serial
        {
            if (port1.IsOpen == true) //Si el puerto está abierto
            {
                if (button_1_data != "")
                {
                    port1.Write(button_1_data); //Envia por el serial la variable button_1_data
                    lb_serial_sending.Content = "";
                    lb_serial_sending.Content = "Sended " + button_1_data + " to serial";
                }
            }
            else
            {
                lb_serial_sending.Content = "";
                lb_serial_sending.Content = "You have to connect to a port";
            }
        }

        private void button2_Click(object sender, RoutedEventArgs e) //Si hay algo guardado en button2 enviar al serial
        {
            if (port1.IsOpen == true)
            {
                if (button_2_data != "")
                {
                    port1.Write(button_2_data);
                    lb_serial_sending.Content = "";
                    lb_serial_sending.Content = "Sended " + button_2_data + " to serial";
                }
            }
            else
            {
                lb_serial_sending.Content = "";
                lb_serial_sending.Content = "You have to connect to a port";
            }
        }

        private void button3_Click(object sender, RoutedEventArgs e)
        {
            if (port1.IsOpen == true)
            {
                if (button_3_data != "")
                {
                    port1.Write(button_3_data);
                    lb_serial_sending.Content = "";
                    lb_serial_sending.Content = "Sended " + button_3_data + " to serial";
                }
            }
            else
            {
                lb_serial_sending.Content = "";
                lb_serial_sending.Content = "You have to connect to a port";
            }
            
        }

        private void button4_Click(object sender, RoutedEventArgs e)
        {
            if (port1.IsOpen == true)
            {
                if (button_4_data != "")
                {
                    port1.Write(button_4_data);
                    lb_serial_sending.Content = "";
                    lb_serial_sending.Content = "Sended " + button_4_data + " to serial";
                }
            }
            else
            {
                lb_serial_sending.Content = "";
                lb_serial_sending.Content = "You have to connect to a port";
            }
        }


    }
}







by kardexx1 (the guy who asked the question) :).




by kardexx1 (the guy who asked the question) :).


这篇关于如何在wpf应用程序中验证mfrc522 arduino uid的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

09-24 12:36