Getting a answer from a driver in HEX

i´m working in a communication between a software that i developed and a weighing module. I´m facing the following problem problem:
I´m receiving the data from a serial port in CHAR, but it goes untill 127, after this i start to receive a "?" and it converts to a "63".
There is a way of receiving the message back in HEX or do you have another solution maybe? Because i need the rest of the numbers from 127 to 255.

SerialPort1.Write(message1)

message = SerialPort1.ReadLine()

peso1 = message.Chars(2)

value1 = Convert.ToInt32(peso1)

If pes2 = "?" Then
value2 = 0
If peso1 = "?" Then
value1 = 0
End If
End If


pes2 = message.Chars(1)
value2 = Convert.ToInt32(pes2)

pes3 = message.Chars(0)
value3 = Convert.ToInt32(pes3)


valuef = value1 + value2*255
TextBox1.Text = valuef
'
tv1.Text = value1
tv2.Text = value2
tv3.Text = value3


1 Answer
1

If the device is sending ASCII characters then the encoding of the serial port will have to be something that has 256 values defined. I believe this is one.

System.Text.Encoding.GetEncoding(28591)


Without knowing the protocol of the device it is hard to give a better answer.

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