Connect to gateway using VB.NET

[Sensorbuilder]

I am trying to develope my own controller SW using VB.NET 2012.

Reading data from Gateway works perfect, using Sockets.NetworkStream and public function .GetStream(), but i do not suceed sending anything.

When i try to send to gateway, i use function .Client.Send(<bytes>) where bytes are by command text string "20;1;1;1;2;0;\n" decoded to byte with the expression System.Text.Encoding.ASCII.GetBytes( "20;1;1;1;2;0;\n")

When i connect to gateway using putty and a raw connection everything works fine.

Does anyone have knowledge about VB.net and howto send command to gateway?

[ch3b7]

You dont need send newline

[ch3b7]

Use streamreader and streamwrite to read and send data over the networkstream

[Dirk_H]

Hi,

I'm not 100% sure especially for Ethernet but shouldn't the string to send be:
"20;1;1;1;2;0\n" (no trailing semicolon at the last argument).

You can also check if the output of ASCII.GetBytes is ok. \n should get a 10 (dec). But this should work I think.

[ch3b7]

im make a vb.net controller im try to help you with some code

declare

Public Swriter As StreamWriter
Public Client As New TcpClient
Public ClientStream As NetworkStream

to send data use

ClientStream = Client.GetStream()
ClientStream.Flush()
Swriter = New StreamWriter(ClientStream)
Swriter.WriteLine(deviceid & ";" & sensorchildid & ";" & msgType & ";" & ack & ";" & subType & ";" & payload)
Swriter.Flush()

if you need more help tell me im try to help ^^

[Sensorbuilder]

Hi,

Thank you very mouch for your quick support!!
Now it works perfect as expected