removed helper functions from the module usage. Moved the alphabet variable to a script variable

Author: DanielSSilva

ScrollpHat.psd1

@@ -69,7 +69,7 @@ RequiredModules = @("Microsoft.PowerShell.IoT")
 # NestedModules = @()
 
 # Functions to export from this module, for best performance, do not use wildcards and do not delete the entry, use an empty array if there are no functions to export.
-FunctionsToExport = '*'
+FunctionsToExport = @('Set-PhatBrightness','Write-PhatString','Write-PhatChar',)
 
 # Cmdlets to export from this module, for best performance, do not use wildcards and do not delete the entry, use an empty array if there are no cmdlets to export.
 CmdletsToExport = '*'

ScrollpHat.psm1

@@ -2,6 +2,47 @@
 
 New-Variable -Name "TotalRegisters" -Value 11 -Option Constant -Scope Script
 New-Variable -Name "CurrentRegisterValues" -Value @() -Scope Script
+New-Variable -Name "Alphabet" -Value  @{
+	A = 0x3E, 0x05, 0x3E
+	B = 0x1F, 0x15, 0x0A
+	C = 0x0E, 0x11, 0x11
+	D = 0x1F, 0x11, 0x0E
+	E = 0x1F, 0x15, 0x11
+	F = 0x1F, 0x05, 0x01
+	G = 0x0E, 0x11, 0x1D
+	H = 0x1F, 0x04, 0x1F
+	I = 0x11, 0x1F, 0x11
+	J = 0x09, 0x11, 0x0F
+	K = 0x1F, 0x04, 0x1B
+	L = 0x1F, 0x10, 0x10
+	M = 0x1F, 0x02, 0x04, 0x02, 0x1F
+	N = 0x1F, 0x02, 0x0C, 0x1F
+	O = 0x0E, 0x11, 0x0E
+	P = 0x1F, 0x09, 0x06
+	Q = 0x0E, 0x11, 0x09, 0x16
+	R = 0x1F, 0x09, 0x16
+	S = 0x12, 0x15, 0x09
+	T = 0x01, 0x1F, 0x01
+	U = 0x0F, 0x10, 0x10, 0x0F
+	V = 0x0F, 0x10, 0x0F
+	W = 0x0F, 0x10, 0x08,0x10,0x0F
+	X = 0x1D, 0x04, 0x1D
+	Y = 0x03, 0x1C, 0x03
+	Z = 0x19, 0x15, 0x13
+	"1" = 0x12, 0x1F, 0x10
+	"2" = 0x19, 0x15, 0x12
+	"3" = 0x11, 0x15, 0x0A
+	"4" = 0x0E, 0x09, 0x1C
+	"5" = 0x17, 0x15, 0x09
+	"6" = 0x0E, 0x15, 0x08
+	"7" = 0x19, 0x05, 0x03
+	"8" = 0x0A, 0x15, 0x0A
+	"9" = 0x02, 0x15, 0x0E
+	"0" = 0x0E, 0x15, 0x0E
+	"!" = 0x17
+	" " = 0X00,0X00
+	"-" = 0x04,0x04,0x04
+} -Scope Script
 
 function Select-ScrollpHat {
         [int]$DeviceAddress = 0x60
@@ -79,50 +120,50 @@ function Write-PhatChar {
         [string]$char
     )
     ##############TEMP#################
-    $alphabet = @{
-        A = 0x3E, 0x05, 0x3E
-        B = 0x1F, 0x15, 0x0A
-        C = 0x0E, 0x11, 0x11
-        D = 0x1F, 0x11, 0x0E
-        E = 0x1F, 0x15, 0x11
-        F = 0x1F, 0x05, 0x01
-        G = 0x0E, 0x11, 0x1D
-        H = 0x1F, 0x04, 0x1F
-        I = 0x11, 0x1F, 0x11
-        J = 0x09, 0x11, 0x0F
-        K = 0x1F, 0x04, 0x1B
-        L = 0x1F, 0x10, 0x10
-        M = 0x1F, 0x02, 0x04, 0x02, 0x1F
-        N = 0x1F, 0x02, 0x0C, 0x1F
-        O = 0x0E, 0x11, 0x0E
-        P = 0x1F, 0x09, 0x06
-        Q = 0x0E, 0x11, 0x09, 0x16
-        R = 0x1F, 0x09, 0x16
-        S = 0x12, 0x15, 0x09
-        T = 0x01, 0x1F, 0x01
-        U = 0x0F, 0x10, 0x10, 0x0F
-        V = 0x0F, 0x10, 0x0F
-        W = 0x0F, 0x10, 0x08,0x10,0x0F
-        X = 0x1D, 0x04, 0x1D
-        Y = 0x03, 0x1C, 0x03
-        Z = 0x19, 0x15, 0x13
-        "1" = 0x12, 0x1F, 0x10
-        "2" = 0x19, 0x15, 0x12
-        "3" = 0x11, 0x15, 0x0A
-        "4" = 0x0E, 0x09, 0x1C
-        "5" = 0x17, 0x15, 0x09
-        "6" = 0x0E, 0x15, 0x08
-        "7" = 0x19, 0x05, 0x03
-        "8" = 0x0A, 0x15, 0x0A
-        "9" = 0x02, 0x15, 0x0E
-        "0" = 0x0E, 0x15, 0x0E
-        "!" = 0x17
-        " " = 0X00,0X00
-        "-" = 0x04,0x04,0x04
-    }
+    # $alphabet = @{
+    #     A = 0x3E, 0x05, 0x3E
+    #     B = 0x1F, 0x15, 0x0A
+    #     C = 0x0E, 0x11, 0x11
+    #     D = 0x1F, 0x11, 0x0E
+    #     E = 0x1F, 0x15, 0x11
+    #     F = 0x1F, 0x05, 0x01
+    #     G = 0x0E, 0x11, 0x1D
+    #     H = 0x1F, 0x04, 0x1F
+    #     I = 0x11, 0x1F, 0x11
+    #     J = 0x09, 0x11, 0x0F
+    #     K = 0x1F, 0x04, 0x1B
+    #     L = 0x1F, 0x10, 0x10
+    #     M = 0x1F, 0x02, 0x04, 0x02, 0x1F
+    #     N = 0x1F, 0x02, 0x0C, 0x1F
+    #     O = 0x0E, 0x11, 0x0E
+    #     P = 0x1F, 0x09, 0x06
+    #     Q = 0x0E, 0x11, 0x09, 0x16
+    #     R = 0x1F, 0x09, 0x16
+    #     S = 0x12, 0x15, 0x09
+    #     T = 0x01, 0x1F, 0x01
+    #     U = 0x0F, 0x10, 0x10, 0x0F
+    #     V = 0x0F, 0x10, 0x0F
+    #     W = 0x0F, 0x10, 0x08,0x10,0x0F
+    #     X = 0x1D, 0x04, 0x1D
+    #     Y = 0x03, 0x1C, 0x03
+    #     Z = 0x19, 0x15, 0x13
+    #     "1" = 0x12, 0x1F, 0x10
+    #     "2" = 0x19, 0x15, 0x12
+    #     "3" = 0x11, 0x15, 0x0A
+    #     "4" = 0x0E, 0x09, 0x1C
+    #     "5" = 0x17, 0x15, 0x09
+    #     "6" = 0x0E, 0x15, 0x08
+    #     "7" = 0x19, 0x05, 0x03
+    #     "8" = 0x0A, 0x15, 0x0A
+    #     "9" = 0x02, 0x15, 0x0E
+    #     "0" = 0x0E, 0x15, 0x0E
+    #     "!" = 0x17
+    #     " " = 0X00,0X00
+    #     "-" = 0x04,0x04,0x04
+    # }
     ###################################
     #get respective bits from hashtable
-    $bitsArray = $alphabet[$char] # this is an array with required data
+    $bitsArray = $Script:Alphabet[$char] # this is an array with required data
     $totalRegistersRequired = $Script:CurrentRegisterValues.Count + $bitsArray.Count
 
     $registers = ($Script:CurrentRegisterValues.Count+1) .. $totalRegistersRequired
@@ -182,27 +223,6 @@ function Set-PhatLedsOff {
     Update-PhatRegisters
 }
 
-function Reset-PhatRegisters {
-    $resetRegisterAddress = 0xFF
-    $resetRegisterValue = 0xF #can be any value
-    Set-I2CRegister -Device $Script:Device -Register $resetRegisterAddress -Data $resetRegisterValue
-}
-
-function Get-NextAvailableRegisters {
-    param(
-        [int]$numberOfRequiredRegisters
-    )
-
-    $availableRegisters = $Script:MatrixRegisters | Where-Object {$_.InUse -eq $false}
-
-    $requestedRegisters = $availableRegisters | Select-Object -First $numberOfRequiredRegisters
-
-    return [PSCustomObject]@{
-        RequestedRegisters = $requestedRegisters
-        TotalAvailable = $availableRegisters.Count
-    }
-}
-
 function Set-PhatCrazyLeds () {
     $brightnessValues = 'Lowest','Low', 'Medium', 'High', 'Highest'
     $iteration