Управление Arduino через локальный IP - адрес из приложения VB net.
Всем привет.
Что-то очень странное происходит в моем коде, и мне действительно нужна ваша помощь.
Итак, моя настройка-это arduino uno с экраном ethernet и приложением vb net. Что делает приложение, так это дает некоторые данные arduino в локальной сети . Это работает, но есть проблема. Иногда я получал быстрый ответ от arduino некоторых других с задержкой, которая составляет максимум около 4 секунд. Я не могу понять, почему это происходит.
Когда я пробую ту же процедуру через веб-браузер или свой мобильный телефон, она работает без каких-либо задержек.
Что я уже пробовал:
Here is my codes.
arduino code :
<pre lang="c#"><pre>//zoomkat 12-8-11
//simple button GET with iframe code
//for use with IDE 1.0
//open serial monitor to see what the arduino receives
//use the \ slash to escape the " in the html (or use ')
//address will look like http://192.168.1.102:84 when submited
//for use with W5100 based ethernet shields
#include <SPI.h>
#include <Ethernet.h>
#define HC12 Serial
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; //physical mac address
byte ip[] = { 192, 168, 1, 102 }; // ip in lan
byte gateway[] = { 192, 168, 1, 1 }; // internet access via router
byte subnet[] = { 255, 255, 255, 0 }; //subnet mask
EthernetServer server(84); //server port
String readString;
//////////////////////
void setup(){
pinMode(5, OUTPUT); //pin selected to control
//start Ethernet
Ethernet.begin(mac, ip, gateway, gateway, subnet);
server.begin();
//enable serial data print
Serial.begin(9600);
HC12.begin(9600);
Serial.println("server LED test 1.0"); // so I can keep track of what is loaded
}
void loop(){
// Create a client connection
EthernetClient client = server.available();
if (client) {
while (client.connected()) {
if (client.available()) {
char c = client.read();
//read char by char HTTP request
if (readString.length() < 200) {
//store characters to string
readString += c;
//Serial.print(c);
}
//if HTTP request has ended
if (c == '\n') {
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
String stringOne = readString;
//Serial.println(stringOne);
// replace() changes all instances of one substring with another:
// first, make a copy of the original string:
String stringTwo = stringOne;
// then perform the replacements:
stringTwo.replace("HTTP/1.1", "");
// print the original:
//Serial.println("Original string: " + stringOne);
// and print the modified string:
//Serial.println("Modified string: " + stringTwo);
// String stringOne = readString;
//Serial.println(stringOne);
// replace() changes all instances of one substring with another:
// first, make a copy of the original string:
String stringThree = stringTwo;
// then perform the replacements:
stringThree.replace("%20", " ");
// print the original:
//Serial.println("Original string: " + stringOne);
// and print the modified string:
//Serial.println("Modified string: " + stringTwo);
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
///////////////
HC12.println(stringThree); //print to serial monitor for debuging
//now output HTML data header
if(readString.indexOf('?') >=0) { //don't send new page
client.println("HTTP/1.1 ");
client.println();
client.println();
}
else {
client.println("HTTP/1.1 200 OK"); //send new page
client.println("Content-Type: text/html");
client.println();
client.println("<HTML>");
client.println("<HEAD>");
client.println("<TITLE>Arduino GET test page</TITLE>");
client.println("</HEAD>");
client.println("<BODY>");
client.println("<H1>Zoomkat's simple Arduino button</H1>");
client.println("<a href=\"/?on1\" target=\"inlineframe\">ON</a>");
client.println("<a href=\"/?off\" target=\"inlineframe\">OFF</a>");
//client.println("<IFRAME name=inlineframe src=\"res://D:/WINDOWS/dnserror.htm\" width=1 height=1\">");
client.println("<IFRAME name=inlineframe style=\"display:none\" >");
client.println("</IFRAME>");
client.println("</BODY>");
client.println("</HTML>");
}
delay(1);
//stopping client
client.stop();
///////////////////// control arduino pin
if(readString.indexOf("on1") >0)//checks for on
{
digitalWrite(5, HIGH); // set pin 4 high
Serial.println("Led On");
}
if(readString.indexOf("off") >0)//checks for off
{
digitalWrite(5, LOW); // set pin 4 low
Serial.println("Led Off");
}
//clearing string for next read
readString="";
}
}
}
}
}
и код vb :
<pre lang="vb"><pre>
Imports System.IO
Imports System.IO.Ports
Imports System.Threading
Public Class Form1
Private Sub Button6_Click(sender As Object, e As EventArgs) Handles Button6.Click
If SerialPort1.IsOpen Then
SerialPort1.WriteLine("m")
End If
TextBox10.Text = TextBox11.Text
TextBox10.Text = TextBox10.Text & "m"
WebBrowser1.Navigate(TextBox10.Text)
End Sub
Private Sub Button7_Click(sender As Object, e As EventArgs) Handles Button7.Click
TextBox10.Text = TextBox11.Text
TextBox10.Text = TextBox10.Text & "c" & Label10.Text
WebBrowser1.Navigate(TextBox10.Text)
' Threading.Thread.Sleep(20)
TextBox10.Text = TextBox11.Text
TextBox10.Text = TextBox10.Text & "a" & Label11.Text
WebBrowser1.Navigate(TextBox10.Text)
' Threading.Thread.Sleep(20)
TextBox10.Text = TextBox11.Text
TextBox10.Text = TextBox10.Text & "k"
WebBrowser1.Navigate(TextBox10.Text)
' Threading.Thread.Sleep(20)
End Sub
Private Sub TrackBar1_Scroll(sender As Object, e As EventArgs) Handles TrackBar1.Scroll
Label8.Text = TrackBar1.Value
If SerialPort1.IsOpen Then
SerialPort1.WriteLine("z" & Val(Label8.Text))
End If
TextBox10.Text = TextBox11.Text
TextBox10.Text = TextBox10.Text & "z" & Val(Label8.Text)
WebBrowser1.Navigate(TextBox10.Text)
End Sub
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
Label5.Text = "ΕΞΕΛΙΞΗ"
Label10.Text = TextBox1.Text * 3600 + TextBox2.Text * 60
TextBox10.Text = TextBox11.Text
TextBox10.Text = TextBox10.Text & "c" & Label10.Text
WebBrowser1.Navigate(TextBox10.Text)
If Label10.Text > 0 Then
Timer2.Start()
End If
End Sub
Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
Label15.Text = "ΕΞΕΛΙΞΗ"
Label11.Text = TextBox3.Text * 3600 + TextBox4.Text * 60
TextBox10.Text = TextBox11.Text
TextBox10.Text = TextBox10.Text & "a" & Label11.Text
WebBrowser1.Navigate(TextBox10.Text)
'Label11.Text = Label11.Text + 1
If Label11.Text > 0 Then
Timer3.Start()
End If
End Sub
Private Sub Button11_Click(sender As Object, e As EventArgs) Handles Button11.Click
TextBox10.Text = TextBox11.Text
TextBox10.Text = TextBox10.Text & "s" & RichTextBox1.Text
WebBrowser1.Navigate(TextBox10.Text)
End Sub
End Class
Gerry Schmitz
Слишком много кода, чтобы с ним возиться. Вам нужно "сузить кругозор".