How to Send Data to a Device

How to Send Data to a Device

TWedge V2

Solution: TWedge provides the function WriteToDevice () for this purpose. WriteToDevice () accepts two parameters:

• The first one specifies the data which should be sent to the device.
• The second parameter specifies the timeout (in milliseconds) for this operation.

The following example sends two lines of text: The first line prompts the device for accepting the username, the second line sends the username. Each line is terminated by a newline character (\n line feed):

WriteToDevice ("user\n", 1000);
WriteToDevice ("sysadmin\n", 1000);

TWedge V3

Solution: For this purpose TWedge provides the Javascript member function WriteData (). This function exists in two variants with different parameters.:

• Integer WriteData (Array arrData, Integer nTimeout)
• Integer WriteData (String sData, Integer nTimeout, String sEncoding = "Latin1")

The following example sends data one time as binary array and one time as string. Inside of a string you can encode a line feed with the escape sequence \n:

var arrSend = [0x48, 0x65, 0x6c, 0x6c, 0x6f];
hConn.WriteData (arrSend, 200);

hConn.WriteData ("Hello\n", 1000);

hConn is the actual connection object.