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Netduino Plus and Seedstudio GPRS Shield


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#1 tknman0700

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Posted 27 April 2012 - 09:38 PM

I am very new to the concept of netduino development and I must admit there are a few hurdles I need to cross. My background is in windows application development and my formal eduaction is in microprocessor and fw design with some emphasis in PLC implementation. I say all of this to say that I have some exposure to the idea of hardware development and am comfortable with the Visual Studio design environment.

I am however struggling with this device

http://www.seeedstud...l?cPath=132_134

I have located this helper wiki:
http://www.seeedstud...RS_Shield_v0.9b

I have located a helper library here:
http://netduino2seedgsm.codeplex.com/

I have downloaded the helper library and have tried to post simple SMS messages with no real luck. It seems that when I insert my break points into simple code like this Visual Studio simply dies when I try to watch a variable or even mouse over an object.

'static int bufferLength = 0;
        Public Sub New(Optional ByVal portName As String = SerialPorts.COM1, Optional ByVal baudRate As Integer = 19200, Optional ByVal parity__1 As Parity = Parity.Odd, Optional ByVal dataBits As Integer = 8, Optional ByVal stopBits__2 As StopBits = StopBits.One)
            serialPort = New SerialPort(portName, baudRate, parity__1, dataBits, stopBits__2)
            serialPort.ReadTimeout = -1
            serialPort.WriteTimeout = 10
            serialPort.Handshake = Handshake.XOnXOff
            serialPort.Open()

            AddHandler serialPort.DataReceived, New SerialDataReceivedEventHandler(AddressOf serialPort_DataReceived)
        End Sub

My question is this... are there any good reference links to getting started with serial communication using the netduino Plus?

Secondly if anyone has experience developing with this shield and is interested in making some contract money I will pay for the work to be done - I have all the control logic built I am just struggling to get around the communication piece of this.

Thank you in advance for your consideration.

#2 tknman0700

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Posted 02 May 2012 - 01:41 AM

Can anyone give me direction with how to get support here?

#3 Mario Vernari

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Posted 02 May 2012 - 04:08 AM

Hello there.
In my mind there's a small project involving a GSM modem, but everything I do around Netduino is made on my (few) spare time. If you aren't in a hurry...

In the meantime, have a look here: http://forums.netdui...d-with-sm5100b/

Cheers
Biggest fault of Netduino? It runs by electricity.

#4 michel capua

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Posted 19 June 2012 - 08:05 AM

Can anyone give me direction with how to get support here?



Hi tknman0700,

Do you advice me the GPRS shield you're using?
Do you have obtained good results?




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