VB Express Help Needed

kenwtn

Hi All,

··· I m trying to send commands to the homework board using Visual Basic Express. This is a example of code that works.


SerialPort1.Write("++^++")

SerialPort1.Write(Cmd)

··· But if I try to send a second Variable I can't get it to work. Examples of what I tried.

SerialPort1.Write("++^++")

SerialPort1.Write(Cmd)

SerialPort1.Write(Parm2)



And tried

SerialPort1.Write("++^++")

SerialPort1.Write(Cmd)

SerialPort1.Write(" ")

SerialPort1.Write(Parm2)

··· If anyone has done this please help me out.

Thanks in advance



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Keep buying replacement parts and sooner or later you will get it RIGHT!

Franklin

Attach your code you are using on the stamp to receive this and what it is you get instead of what you were expecting.

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- Stephen

kenwtn

Ok here is the last code I tried.

VB Code

Dim vel As Int16

Dim x As Integer

Dim Cmd As Int16

Cmd = 2

vel = PanRL.Value

For x = 1 To 10

SerialPort1.Write("++^++")

SerialPort1.Write(Str(Cmd))

SerialPort1.Write(" ")

SerialPort1.Write(Str(vel))

Next



And Attached is the Basic Stamp Code. I know the CMD is being passed since it transmits it to my robot and the robot see that. I can't tell what the Stamp is seeing in the Variable CmdParm since I am using the serial port to send the commands and cannot use DEBUG.

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Keep buying replacement parts and sooner or later you will get it RIGHT!

Unsoundcode

Hi kenwtn, you could try the following write command at the VB end

SerialPort1.ReadExisting()

SerialPort1.WriteLine("++^++" & VbCr & Cmd & VbCr & Param2)

and at the Stamp

SERIN 16,16780, [noparse][[/noparse]WAIT("++^++"), DEC3 Command ,DEC3 CmdParm]

A couple of things about this, you will need to reduce the baud rate for the WAIT formatter.

Using WriteLine with the carriage returns in the VB code will separate the transmitted data, so basically you are placing·each data within a bracket

Using DEC3 the Stamp will wait for three digits or a carriage return (whichever comes first ) before reading the next paramater.

As is the VB data will have to be a figure between 0 and 255

There should be no need for a DO-LOOP in either code

Did you check this link out yet······ http://forums.parallax.com/showthread.php?p=671804

Jeff T.

kenwtn

Jeff,
Thanks that did the trick. Thanks so much for the help.

Ken

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Keep buying replacement parts and sooner or later you will get it RIGHT!