B4R Library rConvert

B4R Library rConvert

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Brief
rConvert is a lightweight, open-source helper library for B4R that provides practical conversion routines often needed when working with micro-controllers, sensors, and communication protocols.

It includes simple methods for converting between:
- Unsigned integers (UInt, ULong) and byte arrays
- Floats and byte arrays (IEEE 754)
- Numbers and formatted strings
- Bytes and hexadecimal strings
- Common convenience helpers (e.g. On/Off > Boolean)

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Install
Copy the rConvert.b4xlib into your B4R Additional Libraries folder.

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Example Selected Routines

Sub Process_Globals
    Public Serial1 As Serial
End Sub

Private Sub AppStart
    Serial1.Initialize(115200)
    Log(CRLF, "[Main.AppStart]", CRLF)

    Dim testuint As UInt
    Dim testulong As ULong
    Dim testfloat As Float
    Dim testbytes() As Byte

    ' UInt > Bytes (2)
    testuint = 10
    testbytes = Convert.UIntToBytes(testuint)
    Log("[UIntToBytes] int=", testuint, ", result hex=", Convert.BytesToHex(testbytes), ", length=",testbytes.Length)
    ' [UIntToBytes] int=10, result hex=0A00, length=2

    ' Bytes > UInt Note: byte array must be length 2
    testbytes = Array As Byte(0x0A, 0x00)
    testuint = Convert.BytesToUInt(testbytes)
    Log("[BytesToUInt] bytes=", Convert.BytesToHex(testbytes), ", length=",testbytes.Length,", uint=", testuint)
    ' [BytesToUInt] bytes=0A00, length=2, uint=10

    ' ULong > Bytes (4)
    testulong = 10
    testbytes = Convert.ULongToBytes(testulong)
    Log("[ULongToBytes] long=", testulong, ", result hex=", Convert.BytesToHex(testbytes), ", length=",testbytes.Length)
    ' [ULongToBytes] long=10, result hex=0A000000, length=4

    ' Bytes > ULong Note: byte array must be length 4
    testbytes = Array As Byte(0x0A,0x00,0x00,0x00)
    testulong = Convert.BytesToULong(testbytes)
    Log("[BytesToULong] bytes=", Convert.BytesToHex(testbytes), ", length=",testbytes.Length,", ulong=", testulong)
    ' [BytesToULong] bytes=0A000000, length=4, ulong=10

    ' ULong > String Note: Uses cast
    Dim teststring As String = testulong
    Log("[ULongToString Cast] ulong=", testulong, ", teststring=", teststring)
    ' [ULongToString Cast] ulong=10, teststring=10.00

    ' ULong > String Note: Uses numberformat
    Dim teststring As String = NumberFormat(testulong, 0, 0)
    Log("[ULongToString NumberFormat] ulong=", testulong, ", teststring=", teststring)
    ' [ULongToString NumberFormat] ulong=10, teststring=10.00

    ' Float to bytes
    testfloat = 18.58
    testbytes = Convert.FloatToBytes(testfloat)
    Log("[FloatToBytes] float=", testfloat, ", result hex=", Convert.BytesToHex(testbytes), ", length=",testbytes.Length)
    ' [FloatToBytes] float=18.5800, result hex=D7A39441

    ' Two Bytes to Hex
    Dim b1 As Byte = 10
    Dim b2 As Byte = 15
    Log("[TwoBytesToHex] b1=", b1, ", b2=", b2, ", result hex=", Convert.TwoBytesToHex(b1, b2))
    ' [TwoBytesToHex] b1=10, b2=15, result hex=0A0F

    ' OnOff to Bool
    Log("OnOffToBool] on=", Convert.OnOffToBool("on"), ", off=", Convert.OnOffToBool("off"))
    ' OnOffToBool] on=1, off=0
End Sub

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License
MIT