Arduino wifly

Hi guys,my project is very simple. I would like to use the channeljc.com yun to send data from a sensor to a PC via wifi. However, I don"t have a router and I want to use a the ad-hoc connection. I didn"t find much information about it, I only found where I can set the ad-hoc configuration on the advance setting...ok.. and then.... I miss the next step.

Can you help me?? Thanks!!


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channeljc.com channeljc.com – 23 Jul 14
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woodstock:Thank you Jesse for your answer.I read the different documentation but apart from the information about the setting configuration in LUCI interface… unfortunally I have not solved the problem

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woodstock,are you aware that the default settings for the Yun is to act as an AP (wireless Access Point)?So, I’m puzzled as to your real problem. Do you want wifi as your primary network medium?Or are you looking for a dependable network. Can you please give us more details.

ThanksJesse


woodstock:I have a doubt: with the Console command I need a ssh connection, in your opinion the C# code doesn’t change?

Oh… that would be a problem. This is a straight TCP stream socket. SSH adds an encrypted protocol layer on top of that. This was tested using the straight YunClient, but not tested with Console. I’m sure it won’t work, and I’ve never looked into what it would take to make an SSH connection from C#. I’m afraid I can’t be any help there.

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Hi guys… I finally completed my project. THANKS very much for your support. Now I want to share with you the code that I used.

Sketch code: I didn’t use the Console command but the TCP approach with YunClient. (Thanks to ShapeShifter)

#include #include #include #define PORT 255YunServer server(PORT);YunClient client;static boolean clientActive = false;void setup(){ // Bridge startup Bridge.begin(); server.noListenOnLocalhost(); server.begin(); client = server.accept();}void loop(){ if (client.connected()) { if (!clientActive) //Serial.println("New client connection."); clientActive = true; // Have a connection. Read and echo any input to the serial port if (client.available()) { //Serial.print("From client: \""); //while (client.available()) //Serial.print((char)client.read()); //Serial.println("\""); } // Send to the client 350 349 348.... 301 350 349..... int x; for (x=350; x>300; x--){ client.println(x); delay(100); } } else // No connection, try to accept one. { if (clientActive) Serial.println("Client disconnected."); clientActive = false; client = server.accept(); }}C# code: it was not very easy to create a socket and to control the sending data. However in with this code you will not have any problem

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using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Net.Sockets; using System.Threading; using System.Net;namespace readthat{ public class StateObject { // Client socket. public Socket workSocket = null; // Size of receive buffer. public const int BufferSize = 256; // Receive buffer. public byte<> buffer = new byte; // Received data string. public StringBuilder sb = new StringBuilder(); } public class AsynchronousClient { // The port number for the remote device. private const int port = 255; // ManualResetEvent instances signal completion. private static ManualResetEvent connectDone = new ManualResetEvent(false); private static ManualResetEvent sendDone = new ManualResetEvent(false); private static ManualResetEvent receiveDone = new ManualResetEvent(false); // The response from the remote device. private static String response = String.Empty; public static void StartClient() { // Connect to a remote device. try { // Establish the remote endpoint for the socket. // The name of the // remote device is "host.contoso.com". //IPHostEntry ipHostInfo = Dns.GetHostEntry("192.168.43.102:255"); //IPAddress ipAddress = ipHostInfo.AddressList<0>; // IPAddress ipAddress = IPAddress.Parse("192.168.43.102"); IPEndPoint remoteEP = new IPEndPoint(ipAddress, port); // Create a TCP/IP socket. Socket client = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); // Connect to the remote endpoint. client.BeginConnect(remoteEP, new AsyncCallback(ConnectCallback), client); connectDone.WaitOne(); // Send test data to the remote device. Send(client, "This is a test"); sendDone.WaitOne(); // Receive the response from the remote device. Receive(client); receiveDone.WaitOne(); // Write the response to the console. Console.WriteLine("Response received : {0}", response); // Release the socket. client.Shutdown(SocketShutdown.Both); client.Close(); } catch (Exception e) { Console.WriteLine(e.ToString()); } } private static void ConnectCallback(IAsyncResult ar) { try { // Retrieve the socket from the state object. Socket client = (Socket)ar.AsyncState; // Complete the connection. client.EndConnect(ar); Console.WriteLine("Socket connected to {0}", client.RemoteEndPoint.ToString()); // Signal that the connection has been made. connectDone.Set(); } catch (Exception e) { Console.WriteLine(e.ToString()); } } private static void Receive(Socket client) { try { // Create the state object. StateObject state = new StateObject(); state.workSocket = client; // Begin receiving the data from the remote device. client.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0, new AsyncCallback(ReceiveCallback), state); } catch (Exception e) { Console.WriteLine(e.ToString()); } } private static void ReceiveCallback(IAsyncResult ar) { try { // Retrieve the state object and the client socket // from the asynchronous state object. StateObject state = (StateObject)ar.AsyncState; Socket client = state.workSocket; // Read data from the remote device. int bytesRead = client.EndReceive(ar); if (bytesRead > 0) { // There might be more data, so store the data received so far. response = Encoding.ASCII.GetString(state.buffer, 0, bytesRead); Console.Write("{0}", response); state.sb.Append(response); // Get the rest of the data. client.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0, new AsyncCallback(ReceiveCallback), state); } else { // All the data has arrived; put it in response. if (state.sb.Length > 1) { response = state.sb.ToString(); } // Signal that all bytes have been received. receiveDone.Set(); } } catch (Exception e) { Console.WriteLine(e.ToString()); } } private static void Send(Socket client, String data) { // Convert the string data to byte data using ASCII encoding. byte<> byteData = Encoding.ASCII.GetBytes(data); // Begin sending the data to the remote device. client.BeginSend(byteData, 0, byteData.Length, 0, new AsyncCallback(SendCallback), client); } private static void SendCallback(IAsyncResult ar) { try { // Retrieve the socket from the state object. Socket client = (Socket)ar.AsyncState; // Complete sending the data to the remote device. int bytesSent = client.EndSend(ar); Console.WriteLine("Sent {0} bytes to server.", bytesSent); sendDone.Set(); } catch (Exception e) { Console.WriteLine(e.ToString()); } } } }Thank you again and I hope that these code will be helpful for your project.
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