Serial Port in VB .NET 2008

[Dave.W]

I think there must be many sources out there for delphi in the net already.

Visual studio is a relativly new kind of language, with very few websites helping with serial comms, thats why I post here

[infogsm]

thx man it s very interesting for beginners !!
br

[cool_guy4ever15]

thanks man i've worked with t290i and AT Command it works well.

now i'll try to make the MCU recieve the msg that the mobile recieve automatically and switch on/off devices

[dr_aybyd]

hi, Dave.W
i got this error when I sent this AT Command AT+CPBR=1,250
that command is for phonebook extraction

System.InvalidOperationException was unhandled
Message="The port is closed."
Source="System"
StackTrace:
at System.IO.Ports.SerialPort.ReadExisting() at SerialPort_Test.Form1.SerialPort1_DataReceived(Obj ect sender, SerialDataReceivedEventArgs e) in C:\Documents and Settings\Administrator\My Documents\Downloads\SerialPort_Test\SerialPort_Tes t\SerialPort_Test\Form1.vb:line 74 at System.IO.Ports.SerialPort.CatchReceivedEvents(Obj ect src, SerialDataReceivedEventArgs e) at System.IO.Ports.SerialStream.EventLoopRunner.CallR eceiveEvents(Object state) at System.Threading._ThreadPoolWaitCallback.WaitCallb ack_Context(Object state) at System.Threading.ExecutionContext.runTryCode(Objec t userData) at System.Runtime.CompilerServices.RuntimeHelpers.Exe cuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData) at System.Threading.ExecutionContext.RunInternal(Exec utionContext executionContext, ContextCallback callback, Object state) at System.Threading.ExecutionContext.Run(ExecutionCon text executionContext, ContextCallback callback, Object state) at System.Threading._ThreadPoolWaitCallback.PerformWa itCallbackInternal(_ThreadPoolWaitCallback tpWaitCallBack) at System.Threading._ThreadPoolWaitCallback.PerformWa itCallback(Object state)
InnerException:

[satmosc]

it is really easier in C# .net , and specially , You can compile and MSL for later compile for linux.

[wahidgmx]

tnx guys For this Nice topic

[costel_mcb]

Dave.W can explain how can i send nck codes via usb to nokia bb5 phones, i try to use at comand but not all phones have "Phone to Network Lock" facility Enabled

[AswanX]

thx man it s very interesting for beginners !!

[ufsx002]

Dim i As VariantType

[ufsx002]

Dim i As VariantType

[calvinpower]

I want to write an application using visualbasic2008 which will run on my PC and communicate to a mobile phone using AT commands. ( nokia 1202, 1203)
like reading phone imei, security code, restore factory state, unlock sp lock

[Dave.W]

Originally Posted by calvinpower

I want to write an application using visualbasic2008 which will run on my PC and communicate to a mobile phone using AT commands. ( nokia 1202, 1203)
like reading phone imei, security code, restore factory state, unlock sp lock

Yes, read post 1 and 2 in this thread!

[calvinpower]

cool man. but where to find AT COMMANDS

[Dave.W]

Originally Posted by calvinpower

cool man. but where to find AT COMMANDS

Read post number 2, all is posted.

[calvinpower]

its grateful that u have provided me with such a beatiful and simple tutorial. i was in search of such tutorial for long a time.
I have managed to add a progressivebar and a timer. I am about to start prepairing gsm AT commands like read imei, firmware version, model , make and so forth. please guide me how to send all AT commands at once. and please can you give me AT commands for " read security code, write flash etc...etc..