convert raw hex string to ASCII

hello,
I've been wrestling with this for a while now and need some help.

I am making a system call to read a serial port as follows:
status = CommRead(Port, Buffer, Size)

Where Port is an integer, Buffer is a String and Size is a Long

I get a string of 20 raw hex values from the device I am reading.
When I put the Buffer String into a cell, only the numbers that are ASCII characters are displayed.
I need to convert the raw hex value to an ASCII set then place the 20 values into 20 different rows.

I've tried indexing into the string, but I always seem to get compile errors. Buffer.Chars(int)
Side note, my version of VB won't let me declare a Char variable.

Thanks for any help you can offer.

You probably need a FOR/NEXT loop to step through and break down your input string into pairs of bytes which are presumably numerical.

e.g

For X = 1 to Len(Buffer) step 2
Range("A" & X).value = mid(Buffer,X,2)
Next x

Well, after wrestling around with this a bit more I finally figured it out.
What are the rules for posting code here?

    Dim intPortID As Integer
    Dim lngStatus As Long
    Dim strDatain As String
    Dim x As Long, endhere As Long
    Dim singlechar As String
            
    intPortID = Range("A4").Value
    lngStatus = CommRead(intPortID, strDatain, 20)
    endhere = Len(strDatain)
    For x = 1 To endhere
        singlechar = Asc(Mid(strDatain, x, 1))
        Range("H" & x).Value = singlechar
    Next
    Range("G9").Value = strDatain
    Range("F9").Value = lngStatus
    Range("F10").Value = Len(strDatain)