Android Question how to get bytes from BLE communication

Issues in the Code​

1. Type Mismatch in Conversion: The IntsFromBytes method returns an array of integers (Int()), not a single byte. Assigning it to a byte variable (Dim result As Byte) will not work.
2. Loop Handling: If there are multiple services, the label (lblStat.Text) will only show the result from the last service processed in the loop.

Corrected and Improved Code​

Dim bc As ByteConverter
Dim KeyCode() As Byte
Dim result() As Int
Dim results As String = ""

For Each ServiceId As String In Characteristics.Keys
    KeyCode = Characteristics.Get(ServiceId)  ' Get the byte array from the characteristic
    result = bc.IntsFromBytes(KeyCode)  ' Convert byte array to an array of integers

    ' Append all integers from the result to the results string
    For Each val As Int In result
        results = results & val & ", "
    Next
Next

' Update the label text with all results, trimming the trailing comma
If results.Length > 0 Then
    results = results.SubString2(0, results.Length - 2)
End If

lblStat.Text = results

Explanation​

• Data Handling: The code now correctly handles the byte array conversion to an array of integers. It processes all services and concatenates their results into a string, which is then displayed in the label.
• Concatenation of Results: It concatenates the integer results into a single string, separated by commas. This allows you to see all the integer values from all services.
• Final Display: The final string is assigned to lblStat.Text, showing all integer values derived from the byte arrays of all services.

jimseng said:

all I needed in the end

Click to expand...

Dim f() As Byte = Characteristics.Get(ServiceId)
Log(f.As(List))    'if List-to-String works here
lblStat.Text = f.As(List)    'then it might work here too