Resistance Calculator

Beege · February 6, 2009

Here is my new version after listening to everyone suggestions.

Changes: Added 5 band Calculator

Added E6, E12, E24, E48, E96 Series

Added Range inputs and AutoRange option <-- Made it alot faster!

Rewrote combination functions to allow larger combinations sets

Once again let me know if you see or have any problems. Thanks for looking!

Edit: fixed 30 second hang and window positioning in Version 2.

#include <ButtonConstants.au3>
#include <ComboConstants.au3>
#include <EditConstants.au3>
#include <GUIConstantsEx.au3>
#include <GUIListBox.au3>
#include <StaticConstants.au3>
#include <WindowsConstants.au3>
#Include <GuiComboBox.au3>
#include <GuiListView.au3>
#Include <array.au3>
#Include <file.au3>
#include <Date.au3>

Dim $R_Values
Global $tfound = 0, $tchecked = 0, $Gui_time_comb = 1, $Gui_time_list = 1, $ltimeS, $current_series
$Form1 = GUICreate("Resistance Calculator", 629, 657)
GUISetBkColor(0xFFFFFF)
$B_Target = GUICtrlCreateButton("Calculate", 488, 472, 89, 33, 0)
$Target = GUICtrlCreateInput("", 80, 408, 81, 21)
$Tolerance = GUICtrlCreateInput("1.00", 184, 408, 81, 21)
$Label1 = GUICtrlCreateLabel("Target Value", 80, 384, 82, 20)
GUICtrlSetFont(-1, 10, 400, 0, "MS Sans Serif")
$Label2 = GUICtrlCreateLabel("% Tolerance", 184, 384, 81, 20)
GUICtrlSetFont(-1, 10, 400, 0, "MS Sans Serif")
$nResistors = GUICtrlCreateCombo("2", 288, 408, 81, 25)
GUICtrlSetData(-1, "3|4|5")
$Label3 = GUICtrlCreateLabel("# of Resistors", 288, 384, 85, 20)
GUICtrlSetFont(-1, 10, 400, 0, "MS Sans Serif")
$Label4 = GUICtrlCreateLabel("Combinations Checked = ", 272, 592, 156, 20)
GUICtrlSetFont(-1, 10, 400, 0, "MS Sans Serif")
$checked = GUICtrlCreateLabel("0", 427, 592, 200, 20)
GUICtrlSetFont(-1, 10, 400, 0, "MS Sans Serif")
$Label6 = GUICtrlCreateLabel("Combinations Found = ", 56, 592, 140, 20)
GUICtrlSetFont(-1, 10, 400, 0, "MS Sans Serif")
$found = GUICtrlCreateLabel("0", 197, 592, 67, 20)
GUICtrlSetFont(-1, 10, 400, 0, "MS Sans Serif")
Global $List1 = GUICtrlCreateListView('Resistors|Value|% Tolerance', 56, 448, 425, 136)
_GUICtrlListView_SetColumnWidth ($List1, 0, 190)
_GUICtrlListView_SetColumnWidth ($List1, 1, 100)
_GUICtrlListView_SetColumnWidth ($List1, 2, 130)
$Checkbox_series = GUICtrlCreateCheckbox("Series", 112, 320, 65, 17)
GUICtrlSetFont(-1, 10, 400, 0, "MS Sans Serif")
$Checkbox_Parallel = GUICtrlCreateCheckbox("Parallel", 184, 320, 81, 17)
GUICtrlSetFont(-1, 10, 400, 0, "MS Sans Serif")
$Group = GUICtrlCreateGroup("Resistor Connection", 96, 296, 177, 57, $BS_CENTER)
GUICtrlSetBkColor(-1, 0xFFFFE1)
GUICtrlCreateGroup("", -99, -99, 1, 1)
$B_Save = GUICtrlCreateButton("Save List", 488, 528, 89, 33, 0)
$Group1 = GUICtrlCreateGroup("Settings", 56, 360, 337, 81, $BS_CENTER)
GUICtrlCreateGroup("", -99, -99, 1, 1)
$Qcalc_Input = GUICtrlCreateInput("", 32, 112, 161, 21)
$Label5 = GUICtrlCreateLabel("Ex: 10k, 68, 3.3M", 64, 88, 88, 17)
$B_Qcalc = GUICtrlCreateButton("Calculate", 72, 144, 73, 33, 0)
$Group3 = GUICtrlCreateGroup("Quick Calc", 8, 56, 209, 137, $BS_CENTER)
GUICtrlSetFont(-1, 14, 400, 0, "MS Sans Serif")
GUICtrlCreateGroup("", -99, -99, 1, 1)
$Band_1_4 = GUICtrlCreateCombo("Black", 296, 56, 97, 25, $CBS_DROPDOWNLIST)
GUICtrlSetData(-1, "Brown|Red|Orange|Yellow|Green|Blue|Violet|Gray|white")
$label = GUICtrlCreateLabel("Band 1", 248, 56, 38, 17, $SS_CENTERIMAGE)
$Band_2_4 = GUICtrlCreateCombo("Black", 296, 88, 97, 25, $CBS_DROPDOWNLIST)
GUICtrlSetData(-1, "Brown|Red|Orange|Yellow|Green|Blue|Violet|Gray|white")
$Label7 = GUICtrlCreateLabel("Band 2", 248, 88, 38, 17, $SS_CENTERIMAGE)
$Band_3_4 = GUICtrlCreateCombo("Black", 296, 120, 97, 25, $CBS_DROPDOWNLIST)
GUICtrlSetData(-1, "Brown|Red|Orange|Yellow|Green|Blue|Violet|Gray|White|Gold|Silver")
$Label8 = GUICtrlCreateLabel("Band 3", 248, 120, 38, 17, $SS_CENTERIMAGE)
$Band_4_4 = GUICtrlCreateCombo("Gold", 296, 152, 97, 25, $CBS_DROPDOWNLIST)
GUICtrlSetData(-1, "Silver|Brown|Red|Green|Blue|Violet|Gray|None")
$Label9 = GUICtrlCreateLabel("Band 4", 248, 152, 38, 17, $SS_CENTERIMAGE)
$B_Colors4 = GUICtrlCreateButton("Calculate", 280, 184, 81, 33, 0)
$Color = GUICtrlCreateGroup("4 Band Calc", 224, 16, 193, 209, $BS_CENTER)
GUICtrlSetFont(-1, 14, 400, 0, "MS Sans Serif")
GUICtrlCreateGroup("", -99, -99, 1, 1)
$Group2 = GUICtrlCreateGroup("Resistor Combination Calculator ", 40, 253, 553, 369, $BS_CENTER)
GUICtrlSetFont(-1, 18, 400, 0, "MS Sans Serif")
GUICtrlCreateGroup("", -99, -99, 1, 1)
$Checkbox_allowdup = GUICtrlCreateCheckbox("Allow Duplication of Resistors", 309, 322, 201, 17)
GUICtrlSetFont(-1, 10, 400, 0, "MS Sans Serif")
$Group4 = GUICtrlCreateGroup("Options", 296, 296, 217, 57, $BS_CENTER)
GUICtrlSetBkColor(-1, 0xFFFFE1)
GUICtrlCreateGroup("", -99, -99, 1, 1)
$Group5 = GUICtrlCreateGroup("5 Band Calc", 424, 0, 193, 241, $BS_CENTER)
GUICtrlSetFont(-1, 14, 400, 0, "MS Sans Serif")
GUICtrlCreateGroup("", -99, -99, 1, 1)
$Band_1_5 = GUICtrlCreateCombo("Black", 496, 40, 97, 25, $CBS_DROPDOWNLIST)
GUICtrlSetData(-1, "Brown|Red|Orange|Yellow|Green|Blue|Violet|Gray|White")
$Label10 = GUICtrlCreateLabel("Band 1", 448, 40, 38, 17, $SS_CENTERIMAGE)
$Band_2_5 = GUICtrlCreateCombo("Black", 496, 72, 97, 25, $CBS_DROPDOWNLIST)
GUICtrlSetData(-1, "Brown|Red|Orange|Yellow|Green|Blue|Violet|Gray|White")
$Label11 = GUICtrlCreateLabel("Band 2", 448, 72, 38, 17, $SS_CENTERIMAGE)
$Band_3_5 = GUICtrlCreateCombo("Black", 496, 104, 97, 25, $CBS_DROPDOWNLIST)
GUICtrlSetData(-1, "Brown|Red|Orange|Yellow|Green|Blue|Violet|Gray|White")
$Label12 = GUICtrlCreateLabel("Band 3", 448, 104, 38, 17, $SS_CENTERIMAGE)
$Band_4_5 = GUICtrlCreateCombo("Black", 496, 136, 97, 25, $CBS_DROPDOWNLIST)
GUICtrlSetData(-1, "Brown|Red|Orange|Yellow|Green|Blue|Violet|Gray|White|Gold|Silver")
$Label13 = GUICtrlCreateLabel("Band 4", 448, 136, 38, 17, $SS_CENTERIMAGE)
$B_Colors5 = GUICtrlCreateButton("Calculate", 480, 200, 81, 33, 0)
$Band_5_5 = GUICtrlCreateCombo("Gold", 496, 168, 97, 25)
GUICtrlSetData(-1, "Silver|Brown|Red|Green|Blue|Violet|Gray|None")
$Label14 = GUICtrlCreateLabel("Band 5", 448, 168, 38, 17, $SS_CENTERIMAGE)
Global $Range_Start = GUICtrlCreateInput("", 416, 408, 49, 21)
$Range_End = GUICtrlCreateInput("", 480, 408, 49, 21)
$Label15 = GUICtrlCreateLabel("Start", 426, 384, 31, 20)
GUICtrlSetFont(-1, 10, 400, 0, "MS Sans Serif")
$Label16 = GUICtrlCreateLabel("End", 491, 384, 28, 20)
GUICtrlSetFont(-1, 10, 400, 0, "MS Sans Serif")
$Group6 = GUICtrlCreateGroup("Range", 400, 360, 145, 81, $BS_CENTER)
GUICtrlCreateGroup("", -99, -99, 1, 1)
$MenuItem1 = GUICtrlCreateMenu("&File")
$MenuItem8 = GUICtrlCreateMenuitem("View Loaded Values", $MenuItem1)
$Auto_Range = GUICtrlCreateMenuitem("Auto Range", $MenuItem1)
GUICtrlSetState(-1, $GUI_CHECKED)
$MenuItem3 = GUICtrlCreateMenuitem("Exit", $MenuItem1)
$MenuItem9 = GUICtrlCreateMenu("&Load")
$MenuItem10 = GUICtrlCreateMenuitem("E6 Series", $MenuItem9)
$MenuItem11 = GUICtrlCreateMenuitem("E12 Series", $MenuItem9)
$MenuItem12 = GUICtrlCreateMenuitem("E24 Series", $MenuItem9)
$MenuItem13 = GUICtrlCreateMenuitem("E48 Series", $MenuItem9)
$MenuItem14 = GUICtrlCreateMenuitem("E96 Series", $MenuItem9)
$MenuItem7 = GUICtrlCreateMenuitem("Default Values", $MenuItem9)
$MenuItem4 = GUICtrlCreateMenuitem("Import Custom Values", $MenuItem9)
$MenuItem2 = GUICtrlCreateMenu("&Help")
$MenuItem5 = GUICtrlCreateMenuitem("How to Use", $MenuItem2)
$MenuItem6 = GUICtrlCreateMenuitem("About", $MenuItem2)
GUISetState(@SW_SHOW)
GUICtrlSetState($Checkbox_Parallel, $GUI_CHECKED)
GUICtrlSetState($Checkbox_allowdup, $GUI_CHECKED)
GUICtrlSetState($Checkbox_series, $GUI_CHECKED)
_Load_Default_Values($R_Values)
$current_series = 'Default Values'

While 1
    $nMsg = GUIGetMsg()
    Switch $nMsg
        Case $Auto_Range
            If BitAND(GUICtrlRead($Auto_Range), $GUI_CHECKED) = $GUI_CHECKED Then
                GUICtrlSetState($Auto_Range, $GUI_UNCHECKED)
                GUICtrlSetData($Range_Start, '')
                GUICtrlSetData($Range_End, '')
            Else
                GUICtrlSetState($Auto_Range, $GUI_CHECKED)
                GUICtrlSetData($Range_End, '')
                GUICtrlSetData($Range_Start, '')
            EndIf
        Case $B_Save
            _SaveList($List1)
        Case $MenuItem7
            Dim $R_Values[66]
            _Load_Default_Values($R_Values)
            $current_series = 'Default Values'
            MsgBox(0, 'Default Values Loaded!', UBound($R_Values) & ' Values have been Loaded')
        Case $MenuItem4
            Dim $R_Values_Temp
            _Import_Custom_Values($R_Values_Temp)
            If IsArray($R_Values_Temp) = 1 Then
                $R_Values = $R_Values_Temp
                MsgBox(0, 'Custom Values Imported!', UBound($R_Values) & ' Values have been Loaded')
            Else
                ContinueLoop
            EndIf
        Case $B_Target
            If GUICtrlRead($Target) = '' Then
                MsgBox(0, 'ERROR!', 'No Value Entered')
                ContinueLoop
            EndIf
            If BitAND(GUICtrlRead($Checkbox_Parallel) = $GUI_UNCHECKED, GUICtrlRead($Checkbox_series) = $GUI_UNCHECKED) Then
                MsgBox(0, 'ERROR!', 'You must select at least one type of connection')
                ContinueLoop
            EndIf
            $vtarget = GUICtrlRead($Target)
            _Format_View2Value($vtarget)
            Dim $hour, $mins, $secs, $time
            $timeS = TimerInit()
            $ltimeS = TimerInit()
            $tfound = 0
            $tchecked = 0
            $Gui_time_comb = 1
            $Gui_time_list = 1
            _GUICtrlListView_DeleteAllItems ($List1)
            GUICtrlSetData($found, $tfound)
            GUICtrlSetData($checked, $tchecked)
            ;_Calc_Total(GUICtrlRead($Checkbox_series),GUICtrlRead($Checkbox_Parallel),$vtarget, $R_Values, GUICtrlRead($nResistors))
            Select
                Case BitAND(GUICtrlRead($Checkbox_Parallel) = $GUI_CHECKED, GUICtrlRead($Checkbox_series) = $GUI_CHECKED, BitAND(GUICtrlRead($Auto_Range), $GUI_CHECKED) = $GUI_CHECKED)
                    If GUICtrlRead($Checkbox_allowdup) = $GUI_CHECKED Then
                        _AutoRange('Parallel', $vtarget, $R_Values)
                        $Range_Rvalues = _Create_Range($R_Values, GUICtrlRead($Range_Start), GUICtrlRead($Range_End))
                        _Combo_Dups($Range_Rvalues, $vtarget, GUICtrlRead($Tolerance), $GUI_UNCHECKED, $GUI_CHECKED, GUICtrlRead($nResistors))
                        _AutoRange('Series', $vtarget, $R_Values)
                        $Range_Rvalues = _Create_Range($R_Values, GUICtrlRead($Range_Start), GUICtrlRead($Range_End))
                        _Combo_Dups($Range_Rvalues, $vtarget, GUICtrlRead($Tolerance), $GUI_CHECKED, $GUI_UNCHECKED, GUICtrlRead($nResistors))
                    EndIf
                    If GUICtrlRead($Checkbox_allowdup) = $GUI_UNCHECKED Then
                        _AutoRange('Parallel', $vtarget, $R_Values)
                        $Range_Rvalues = _Create_Range($R_Values, GUICtrlRead($Range_Start), GUICtrlRead($Range_End))
                        _Combo($Range_Rvalues, $vtarget, GUICtrlRead($Tolerance), $GUI_UNCHECKED, $GUI_CHECKED, GUICtrlRead($nResistors))
                        _AutoRange('Series', $vtarget, $R_Values)
                        $Range_Rvalues = _Create_Range($R_Values, GUICtrlRead($Range_Start), GUICtrlRead($Range_End))
                        _Combo($Range_Rvalues, $vtarget, GUICtrlRead($Tolerance), $GUI_CHECKED, $GUI_UNCHECKED, GUICtrlRead($nResistors))
                    EndIf
                Case BitAND(GUICtrlRead($Checkbox_Parallel) = $GUI_CHECKED, GUICtrlRead($Checkbox_series) = $GUI_UNCHECKED, BitAND(GUICtrlRead($Auto_Range), $GUI_CHECKED) = $GUI_CHECKED)
                    If GUICtrlRead($Checkbox_allowdup) = $GUI_CHECKED Then
                        _AutoRange('Parallel', $vtarget, $R_Values)
                        $Range_Rvalues = _Create_Range($R_Values, GUICtrlRead($Range_Start), GUICtrlRead($Range_End))
                        _Combo_Dups($Range_Rvalues, $vtarget, GUICtrlRead($Tolerance), $GUI_UNCHECKED, $GUI_CHECKED, GUICtrlRead($nResistors))
                    EndIf
                    If GUICtrlRead($Checkbox_allowdup) = $GUI_UNCHECKED Then
                        _AutoRange('Parallel', $vtarget, $R_Values)
                        $Range_Rvalues = _Create_Range($R_Values, GUICtrlRead($Range_Start), GUICtrlRead($Range_End))
                        _Combo($Range_Rvalues, $vtarget, GUICtrlRead($Tolerance), $GUI_UNCHECKED, $GUI_CHECKED, GUICtrlRead($nResistors))
                    EndIf
                Case BitAND(GUICtrlRead($Checkbox_Parallel) = $GUI_UNCHECKED, GUICtrlRead($Checkbox_series) = $GUI_CHECKED, BitAND(GUICtrlRead($Auto_Range), $GUI_CHECKED) = $GUI_CHECKED)
                    If GUICtrlRead($Checkbox_allowdup) = $GUI_CHECKED Then
                        _AutoRange('Series', $vtarget, $R_Values)
                        $Range_Rvalues = _Create_Range($R_Values, GUICtrlRead($Range_Start), GUICtrlRead($Range_End))
                        _Combo_Dups($Range_Rvalues, $vtarget, GUICtrlRead($Tolerance), $GUI_CHECKED, $GUI_UNCHECKED, GUICtrlRead($nResistors))
                    EndIf
                    If GUICtrlRead($Checkbox_allowdup) = $GUI_UNCHECKED Then
                        _AutoRange('Series', $vtarget, $R_Values)
                        $Range_Rvalues = _Create_Range($R_Values, GUICtrlRead($Range_Start), GUICtrlRead($Range_End))
                        _Combo($Range_Rvalues, $vtarget, GUICtrlRead($Tolerance), $GUI_CHECKED, $GUI_UNCHECKED, GUICtrlRead($nResistors))
                    EndIf
                Case BitAND(GUICtrlRead($Auto_Range), $GUI_UNCHECKED) = $GUI_UNCHECKED
                    If GUICtrlRead($Checkbox_allowdup) = $GUI_CHECKED Then
                        $Range_Rvalues = _Create_Range($R_Values, GUICtrlRead($Range_Start), GUICtrlRead($Range_End))
                        _Combo_Dups($Range_Rvalues, $vtarget, GUICtrlRead($Tolerance), GUICtrlRead($Checkbox_series), GUICtrlRead($Checkbox_Parallel), GUICtrlRead($nResistors))
                    EndIf
                    If GUICtrlRead($Checkbox_allowdup) = $GUI_UNCHECKED Then
                        $Range_Rvalues = _Create_Range($R_Values, GUICtrlRead($Range_Start), GUICtrlRead($Range_End))
                        _Combo($Range_Rvalues, $vtarget, GUICtrlRead($Tolerance), GUICtrlRead($Checkbox_series), GUICtrlRead($Checkbox_Parallel), GUICtrlRead($nResistors))
                    EndIf
            EndSelect
            Global $B_DESCENDING[_GUICtrlListView_GetColumnCount ($List1) ]
            _GUICtrlListView_SimpleSort ($List1, $B_DESCENDING, 2)
            $dif = TimerDiff($timeS)
            If $dif < 60000 Then
                $time = Round($dif / 1000, 2) & ' Seconds'
            Else
                _TicksToTime(Int($dif), $hour, $mins, $secs)
                If $hour = 0 Then
                    $time = $mins & ' Minutes and ' & $secs & ' Seconds'
                Else
                    $time = $hour & 'Hours ' & $mins & 'Minutes and ' & $secs & ' Seconds'
                EndIf
            EndIf
            MsgBox(0, 'Finished!', 'Search Took ' & $time)
            If _GUICtrlListView_GetItemCount ($List1) = 0 Then MsgBox(0, 'No Matches', 'You had 0 matches so you should increase the tolerance.' & @LF & _
                    'Remember for low Values you can increase the tolerance pretty high without changing value much.')
        Case $B_Colors4
            Dim $colors[4]
            $colors[0] = _GUICtrlComboBox_GetCurSel ($Band_1_4)
            $colors[1] = _GUICtrlComboBox_GetCurSel ($Band_2_4)
            $colors[2] = _GUICtrlComboBox_GetCurSel ($Band_3_4)
            $colors[3] = _GUICtrlComboBox_GetCurSel ($Band_4_4)
            $resistor_Color_Value = _Color_Value_4($colors)
            
        Case $B_Colors5
            Dim $colors[5]
            $colors[0] = _GUICtrlComboBox_GetCurSel ($Band_1_5)
            $colors[1] = _GUICtrlComboBox_GetCurSel ($Band_2_5)
            $colors[2] = _GUICtrlComboBox_GetCurSel ($Band_3_5)
            $colors[3] = _GUICtrlComboBox_GetCurSel ($Band_4_5)
            $colors[4] = _GUICtrlComboBox_GetCurSel ($Band_5_5)
            _Color_Value_5($colors)
        Case $B_Qcalc
            $F_Value = _Stringformat(GUICtrlRead($Qcalc_Input), 1)
            $RP_String = _Parallel_Value($F_Value)
            $RS_String = _Series_Value($F_Value)
            MsgBox(0, 'Resistance Value', 'Parallel Value = ' & $RP_String & ' Ohms' & @LF & _
                    'Series Value = ' & $RS_String & ' Ohms')
        Case $GUI_EVENT_CLOSE
            Exit
        Case $MenuItem3
            Exit
        Case $MenuItem6
            MsgBox(0, 'About', 'Resistance Calculator' & @LF & 'Version 2' & @LF & 'Writen by Brian J Christy')
        Case $MenuItem5
            MsgBox(0, 'How to Use', "All values entered can be abbreviated with a K for thousand or M for Million." & @LF & _
                    "For imported values the same rule applies.  Also the file you import" & @LF & "can only have one value per line and must be a .txt file." & @LF & @LF & _
                    "Default Values are preloaded startup. These Values include all values found in " & @LF & _
                    "RadioShacks Assortment Pack." & @LF & @LF & "A Comma is the character used to seperate values in the Quick calc and you can" & @LF & _
                    "enter as many values as you want. The Calc will return both series and parallel values.")
        Case $MenuItem8
            Dim $Atemp = $R_Values
            For $i = 0 To UBound($Atemp) - 1
                _Format_Value2View($Atemp[$i])
            Next
            _ArrayDisplay($Atemp, $current_series)
        Case $MenuItem10
            _Load_E6_Values($R_Values)
            $current_series = 'E6 Series'
            MsgBox(0, 'E6 Series Loaded!', UBound($R_Values) & ' Values have been Loaded')
        Case $MenuItem11
            _Load_E12_Values($R_Values)
            $current_series = 'E12 Series'
            MsgBox(0, 'E12 Series Loaded!', UBound($R_Values) & ' Values have been Loaded')
        Case $MenuItem12
            _Load_E24_Values($R_Values)
            $current_series = 'E24 Series'
            MsgBox(0, 'E24 Series Loaded!', UBound($R_Values) & ' Values have been Loaded')
        Case $MenuItem13
            _Load_E48_Values($R_Values)
            $current_series = 'E48 Series'
            MsgBox(0, 'E48 Series Loaded!', UBound($R_Values) & ' Values have been Loaded')
        Case $MenuItem14
            _Load_E96_Values($R_Values)
            $current_series = 'E96 Series'
            MsgBox(0, 'E96 Series Loaded!', UBound($R_Values) & ' Values have been Loaded')
    EndSwitch
WEnd

Func _AutoRange($connection, $aTarget, $aArray)
    Local $i, $index
    GUICtrlSetData($Range_End, '')
    GUICtrlSetData($Range_Start, '')
    If $connection = 'Parallel' Then
        For $i = UBound($aArray) - 1 To 0 Step - 1
            If $aArray[$i] <= $aTarget Then
                $index = $i - 1
                If $index <= 0 Then
                    GUICtrlSetData($Range_End, '')
                    GUICtrlSetData($Range_Start, '')
                    Return
                EndIf
                GUICtrlSetData($Range_Start, $index)
                Return
            EndIf
        Next
    EndIf
    If $connection = 'Series' Then
        For $i = 0 To UBound($aArray) - 1
            If $aArray[$i] = $aTarget Then
                GUICtrlSetData($Range_End, $i + 1)
                GUICtrlSetData($Range_Start, '')
                Return
            EndIf
            If $aArray[$i] > $aTarget Then
                GUICtrlSetData($Range_End, $i)
                GUICtrlSetData($Range_Start, '')
                Return
            EndIf
        Next
    EndIf
EndFunc   ;==>_AutoRange

Func _Combo(ByRef $avArray, $Target, $Tolerance, $series, $parallel, $iSet, $sDelim = ",")
    Local $i, $aIdx[1], $Resistor_Set, $iN = 0, $iR = 0, $iLeft = 0, $iTotal = 0
    Local $sParallelV, $sSeriesV, $high, $low, $Resistor_Set
    $high = $Target+ ($Target* ($Tolerance / 100))
    $low = $Target- ($Target* ($Tolerance / 100))
    $iN = UBound($avArray)
    $iR = $iSet
    Dim $aIdx[$iR]
    For $i = 0 To $iR - 1
        $aIdx[$i] = $i
    Next
    $iTotal = New_Array_Combinations($iN, $iR)
    $iLeft = $iTotal
    While Int($iLeft) > 0
        _Array_GetNext ($iN, $iR, $iLeft, $iTotal, $aIdx)
        For $i = 0 To $iSet - 1
            $Resistor_Set &= $avArray[$aIdx[$i]] & $sDelim
        Next
        If $sDelim <> "" Then $Resistor_Set = StringTrimRight($Resistor_Set, 1)
        If $parallel = $GUI_CHECKED Then
            $sParallelV = _Parallel_Value($Resistor_Set)
            _Tolerance_Check($sParallelV, $Target, $high, $low, 'P', $Resistor_Set)
        EndIf
        If $series = $GUI_CHECKED Then
            $sSeriesV = _Series_Value($Resistor_Set)
            _Tolerance_Check($sSeriesV, $Target, $high, $low, 'S', $Resistor_Set)
        EndIf
        $Resistor_Set = ''
    WEnd
    GUICtrlSetData($checked, $tchecked)
EndFunc   ;==>_Combo

Func _Combo_Dups(ByRef $array, $Target, $Tolerance, $series, $parallel, $iSet)
    Local $i, $done, $iSet2[1]
    Local $sParallelV, $sSeriesV, $high, $low, $Resistor_Set
    $high = $Target+ ($Target* ($Tolerance / 100))
    $low = $Target- ($Target* ($Tolerance / 100))
    For $i = 0 To $iSet - 1
        _ArrayAdd($iSet2, '0')
    Next
    _ArrayDelete($iSet2, 0)
    Do
        $Resistor_Set = ''
        For $i = 0 To UBound($iSet2) - 1
            $Resistor_Set &= $array[$iSet2[$i]] & ','
        Next
        $Resistor_Set = StringTrimRight($Resistor_Set, 1)
        If $parallel = $GUI_CHECKED Then
            $sParallelV = _Parallel_Value($Resistor_Set)
            _Tolerance_Check($sParallelV, $Target, $high, $low, 'P', $Resistor_Set)
        EndIf
        If $series = $GUI_CHECKED Then
            $sSeriesV = _Series_Value($Resistor_Set)
            _Tolerance_Check($sSeriesV, $Target, $high, $low, 'S', $Resistor_Set)
        EndIf
        _Shift($array, $iSet2, $done)
    Until $done = 1
    GUICtrlSetData($checked, $tchecked)
EndFunc   ;==>_Combo_Dups

Func _Tolerance_Check($value, $Target, $high, $low, $connection, $Resistor_Set)
    If BitAND(($value <= $high) , ($value >= $low)) Then
        Select
            Case $value > $Target
                $vTolerance = Round((($value - $Target) / $Target) * 100, 4)
            Case $value < $Target
                $vTolerance = Round((($Target - $value) / $Target) * 100, 4)
            Case $value = $Target
                $vTolerance = 0
        EndSelect
        $format_set = _Stringformat($Resistor_Set, 0)
        GUICtrlCreateListViewItem($connection & ' - ' & $format_set & '|' & $value & '|' & $vTolerance, $List1)
        $tfound += 1
        GUICtrlSetData($found, $tfound)
        If BitAND(TimerDiff($ltimeS) > $Gui_time_list, $tfound < 50) Then
            Global $B_DESCENDING[_GUICtrlListView_GetColumnCount ($List1) ]
            _GUICtrlListView_SimpleSort ($List1, $B_DESCENDING, 2)
            $Gui_time_list += 1000
        EndIf
    EndIf
    $tchecked += 1
    If TimerDiff($ltimeS) > $Gui_time_comb Then
        GUICtrlSetData($checked, $tchecked)
        $Gui_time_comb += 200
    EndIf
EndFunc   ;==>_Tolerance_Check

Func _SaveList(ByRef $list)
    Local $count, $iArray, $tArray[1], $tString, $location
    $count = _GUICtrlListView_GetItemCount ($list)
    If $count = 0 Then
        MsgBox(0, 'ERROR', 'You have no values in your list!')
        Return
    EndIf
    For $i = 0 To $count - 1
        $iArray = _GUICtrlListView_GetItemTextArray ($list, $i)
        $tString = 'Resistor = ' & $iArray[1] & ' --- Value = ' & $iArray[2] & ' --- Tolerance = ' & $iArray[3] & '%'
        _ArrayAdd($tArray, $tString)
    Next
    $location = FileSaveDialog( "Choose a Filename and Location.", @ScriptDir, "Text files (*.txt)", 2)
    If StringRight($location, 4) <> '.txt' Then $location &= '.txt'
    _FileWriteFromArray($location, $tArray, 0)
EndFunc   ;==>_SaveList

Func _Color_Value_4($color_Array)
    Local $value
    Select
        Case $color_Array[2] = 0
            $value = ($color_Array[0] & $color_Array[1])
        Case $color_Array[2] = 1
            $value = ($color_Array[0] & $color_Array[1]) * 10
        Case $color_Array[2] = 2
            $value = ($color_Array[0] & $color_Array[1]) * 100
        Case $color_Array[2] = 3
            $value = ($color_Array[0] & $color_Array[1]) * 1000
        Case $color_Array[2] = 4
            $value = ($color_Array[0] & $color_Array[1]) * 10000
        Case $color_Array[2] = 5
            $value = ($color_Array[0] & $color_Array[1]) * 100000
        Case $color_Array[2] = 6
            $value = ($color_Array[0] & $color_Array[1]) * 1000000
        Case $color_Array[2] = 7
            $value = ($color_Array[0] & $color_Array[1]) * 10000000
        Case $color_Array[2] = 8
            $value = ($color_Array[0] & $color_Array[1]) * 100000000
        Case $color_Array[2] = 9
            $value = ($color_Array[0] & $color_Array[1]) * 1000000000
        Case $color_Array[2] = 10
            $value = ($color_Array[0] & $color_Array[1]) * .1
        Case $color_Array[2] = 11
            $value = ($color_Array[0] & $color_Array[1]) * .01
    EndSelect
    If StringLeft($value, 1) = 0 Then $value = StringTrimLeft($value, 1)
    _Format_Value2View($value)
    If $color_Array[3] = 0 Then MsgBox(0, '4 Band Value', $value & ' Ohms  +/- 5% ')
    If $color_Array[3] = 1 Then MsgBox(0, '4 Band Value', $value & ' Ohms  +/- 10% ')
    If $color_Array[3] = 2 Then MsgBox(0, '4 Band Value', $value & ' Ohms  +/- 1% ')
    If $color_Array[3] = 3 Then MsgBox(0, '4 Band Value', $value & ' Ohms  +/- 2% ')
    If $color_Array[3] = 4 Then MsgBox(0, '4 Band Value', $value & ' Ohms  +/- 0.5% ')
    If $color_Array[3] = 5 Then MsgBox(0, '4 Band Value', $value & ' Ohms  +/- 0.25% ')
    If $color_Array[3] = 6 Then MsgBox(0, '4 Band Value', $value & ' Ohms  +/- 0.1% ')
    If $color_Array[3] = 7 Then MsgBox(0, '4 Band Value', $value & ' Ohms  +/- 0.05% ')
    If $color_Array[3] = 8 Then MsgBox(0, '4 Band Value', $value & ' Ohms  +/- 20%')
EndFunc   ;==>_Color_Value_4

Func _Color_Value_5($color_Array)
    Local $value
    Select
        Case $color_Array[3] = 0
            $value = ($color_Array[0] & $color_Array[1] & $color_Array[2])
        Case $color_Array[3] = 1
            $value = ($color_Array[0] & $color_Array[1] & $color_Array[2]) * 10
        Case $color_Array[3] = 2
            $value = ($color_Array[0] & $color_Array[1] & $color_Array[2]) * 100
        Case $color_Array[3] = 3
            $value = ($color_Array[0] & $color_Array[1] & $color_Array[2]) * 1000
        Case $color_Array[3] = 4
            $value = ($color_Array[0] & $color_Array[1] & $color_Array[2]) * 10000
        Case $color_Array[3] = 5
            $value = ($color_Array[0] & $color_Array[1] & $color_Array[2]) * 100000
        Case $color_Array[3] = 6
            $value = ($color_Array[0] & $color_Array[1] & $color_Array[2]) * 1000000
        Case $color_Array[3] = 7
            $value = ($color_Array[0] & $color_Array[1] & $color_Array[2]) * 10000000
        Case $color_Array[3] = 8
            $value = ($color_Array[0] & $color_Array[1] & $color_Array[2]) * 100000000
        Case $color_Array[3] = 9
            $value = ($color_Array[0] & $color_Array[1] & $color_Array[2]) * 1000000000
        Case $color_Array[3] = 10
            $value = ($color_Array[0] & $color_Array[1] & $color_Array[2]) * .1
        Case $color_Array[3] = 11
            $value = ($color_Array[0] & $color_Array[1] & $color_Array[2]) * .01
    EndSelect
    If StringLeft($value, 1) = 0 Then $value = StringTrimLeft($value, 1)
    _Format_Value2View($value)
    If $color_Array[4] = 0 Then MsgBox(0, '5 Band Value', $value & ' Ohms  +/- 5%')
    If $color_Array[4] = 1 Then MsgBox(0, '5 Band Value', $value & ' Ohms  +/- 10%')
    If $color_Array[4] = 2 Then MsgBox(0, '5 Band Value', $value & ' Ohms  +/- 1%')
    If $color_Array[4] = 3 Then MsgBox(0, '5 Band Value', $value & ' Ohms  +/- 2%')
    If $color_Array[4] = 4 Then MsgBox(0, '5 Band Value', $value & ' Ohms  +/- 0.5% ')
    If $color_Array[4] = 5 Then MsgBox(0, '5 Band Value', $value & ' Ohms  +/- 0.25% ')
    If $color_Array[4] = 6 Then MsgBox(0, '5 Band Value', $value & ' Ohms  +/- 0.1% ')
    If $color_Array[4] = 7 Then MsgBox(0, '5 Band Value', $value & ' Ohms  +/- 0.05% ')
    If $color_Array[4] = 8 Then MsgBox(0, '5 Band Value', $value & ' Ohms  +/- 20%')
    ;Return $value
EndFunc   ;==>_Color_Value_5

Func _Series_Value($Resistors)
    Local $string, $array
    $Resistors = StringReplace($Resistors, ' ', '')
    $array = StringSplit($Resistors, ',')
    For $i = 1 To $array[0]
        $string += $array[$i]
    Next
    Return $string
EndFunc   ;==>_Series_Value

Func _Parallel_Value($Resistors)
    Local $string, $array
    $Resistors = StringReplace($Resistors, ' ', '')
    $array = StringSplit($Resistors, ',')
    For $i = 1 To $array[0]
        $string += (1 / $array[$i])
        If $i = $array[0] Then $string = 1 / $string
    Next
    If $string < 5 Then
        $string = Round($string, 4)
    Else
        $string = Round($string, 2)
    EndIf
    Return $string
EndFunc   ;==>_Parallel_Value

Func _Format_View2Value(ByRef $value)
    If StringInStr($value, 'k') <> 0 Then
        $value = StringReplace($value, 'k', '')
        $value *= 1000
    EndIf
    If StringInStr($value, 'm') <> 0 Then
        $value = StringReplace($value, 'm', '')
        $value *= 1000000
    EndIf
    Return $value
EndFunc   ;==>_Format_View2Value

Func _Format_Value2View(ByRef $value)
    Local $count
    $count = StringLen($value)
    Select
        Case $count > 6
            $value = ($value / 1000000) & 'M'
            Return
        Case $count > 3
            If StringInStr($value, '.') <> 0 Then Return
            $value = ($value / 1000) & 'K'
            Return
    EndSelect
EndFunc   ;==>_Format_Value2View

Func _Stringformat($string, $type)
    Local $Atemp, $newString
    $string = StringReplace($string, ' ', '')
    $Atemp = StringSplit($string, ',')
    If $type = 0 Then
        For $i = 1 To $Atemp[0]
            _Format_Value2View($Atemp[$i])
            $newString &= $Atemp[$i] & ',  '
        Next
        $newString = StringTrimRight($newString, 3)
        Return $newString
    EndIf
    If $type = 1 Then
        For $i = 1 To $Atemp[0]
            _Format_View2Value($Atemp[$i])
            $newString &= $Atemp[$i] & ','
        Next
        $newString = StringTrimRight($newString, 1)
        Return $newString
    EndIf
EndFunc   ;==>_Stringformat

Func _Import_Custom_Values(ByRef $Custom)
    Local $R_V_Check, $file
    $file = FileOpenDialog("Select File to Import", @ScriptDir & "\", "Text files (*.txt)", 1)
    If $file = '' Then Return
    _FileReadToArray($file, $R_V_Check)
    _ArrayDelete($R_V_Check, 0)
    _ArrayDeleteBlanks($R_V_Check)
    For $i = 0 To UBound($R_V_Check) - 1
        $R_V_Check[$i] = Number(_Format_View2Value($R_V_Check[$i]))
    Next
    _ArraySort($R_V_Check, 0)
    $Custom = $R_V_Check
EndFunc   ;==>_Import_Custom_Values

Func _Load_E6_Values(ByRef $E6_Values)
    Local $E6[6] = [1, 1.5, 2.2, 3.3, 4.7, 6.8]
    _Expand_Series($E6)
    $E6_Values = $E6
EndFunc   ;==>_Load_E6_Values

Func _Load_E12_Values(ByRef $E12_Values)
    Local $E12[12] = [1, 1.2, 1.5, 1.8, 2.2, 2.7, 3.3, 3.9, 4.7, 5.6, 6.8, 8.2]
    _Expand_Series($E12)
    $E12_Values = $E12
EndFunc   ;==>_Load_E12_Values

Func _Load_E24_Values(ByRef $E24_Values)
    Local $value, $E24[24] = [1, 1.1, 1.2, 1.3, 1.5, 1.6, 1.8, 2, 2.2, 2.4, 2.7, 3, 3.3, 3.6, _
            3.9, 4.3, 4.7, 5.1, 5.6, 6.2, 6.8, 7.5, 8.2, 9.1]
    _Expand_Series($E24)
    $E24_Values = $E24
EndFunc   ;==>_Load_E24_Values

Func _Load_E48_Values(ByRef $E48_Values)
    Local $value, $E48[48] = [1, 1.05, 1.1, 1.15, 1.21, 1.27, 1.33, 1.4, 1.47, 1.54, 1.62, 1.69, 1.78, 1.87, _
            1.96, 2.05, 2.15, 2.26, 2.37, 2.49, 2.61, 2.74, 2.87, 3.01, 3.16, 3.32, 3.48, 3.65, 3.83, 4.02, 4.22, _
            4.42, 4.64, 4.87, 5.11, 5.36, 5.62, 5.9, 6.19, 6.49, 6.81, 7.15, 7.5, 7.87, 8.25, 8.66, 9.09, 9.53]
    _Expand_Series($E48)
    $E48_Values = $E48
EndFunc   ;==>_Load_E48_Values

Func _Load_E96_Values(ByRef $E96_Values)
    Local $value, $E96[96] = [1, 1.02, 1.05, 1.07, 1.1, 1.13, 1.15, 1.18, 1.21, 1.24, 1.27, 1.3, 1.33, 1.37, 1.4, 1.43, 1.47, 1.5, _
            1.54, 1.58, 1.62, 1.65, 1.69, 1.74, 1.78, 1.82, 1.87, 1.91, 1.96, 2, 2.05, 2.1, 2.15, 2.21, 2.26, 2.32, 2.37, 2.43, 2.49, 2.55, 2.61, _
            2.67, 2.74, 2.8, 2.87, 2.94, 3.01, 3.09, 3.16, 3.24, 3.23, 3.4, 3.48, 3.57, 3.65, 3.74, 3.83, 3.92, 4.02, 4.12, 4.22, 4.32, 4.42, _
            4.53, 4.64, 4.75, 4.87, 4.99, 5.11, 5.23, 5.36, 5.49, 5.62, 5.76, 5.9, 6.04, 6.19, 6.34, 6.49, 6.65, 6.81, 6.98, 7.15, 7.32, _
            7.5, 7.68, 7.87, 8.06, 8.25, 8.45, 8.66, 8.87, 9.09, 9.31, 9.53, 9.76]
    _Expand_Series($E96)
    $E96_Values = $E96
EndFunc   ;==>_Load_E96_Values

Func _Load_Default_Values(ByRef $RadioShack)
    Local $T_RadioShack[65] = [1, 2.2, 10, 15, 22, 33, 39, 47, 51, 68, 82, 100, 120, 150, 180, 220, 270, 300, 330, _
            390, 470, 510, 560, 680, 820, 1000, 1200, 1500, 1800, 2200, 2700, 3000, 3300, 3900, 4700, 5100, 5600, _
            6800, 8200, 10000, 12000, 15000, 18000, 22000, 27000, 33000, 39000, 47000, 51000, 56000, 68000, 82000, _
            100000, 120000, 150000, 180000, 220000, 270000, 330000, 1000000, 1500000, 2200000, 3300000, 4700000, 10000000]
    $RadioShack = $T_RadioShack
EndFunc   ;==>_Load_Default_Values

Func _Expand_Series(ByRef $Eseries)
    Local $value
    For $i = 0 To UBound($Eseries) - 1
        $value = $Eseries[$i] * 10
        _ArrayAdd($Eseries, $value)
        $value = $Eseries[$i] * 100
        _ArrayAdd($Eseries, $value)
        $value = $Eseries[$i] * 1000
        _ArrayAdd($Eseries, $value)
        $value = $Eseries[$i] * 10000
        _ArrayAdd($Eseries, $value)
        $value = $Eseries[$i] * 100000
        _ArrayAdd($Eseries, $value)
        $value = $Eseries[$i] * 1000000
        _ArrayAdd($Eseries, $value)
    Next
    _ArrayAdd($Eseries, 10000000)
    _ArraySort($Eseries, 0)
EndFunc   ;==>_Expand_Series

Func _ArrayDeleteBlanks(ByRef $array)
    $i = 0
    Do
        If $array[$i] = '' Then
            _ArrayDelete($array, $i)
            $i -= 1
        EndIf
        $i += 1
    Until $i = UBound($array)
EndFunc   ;==>_ArrayDeleteBlanks

Func New_Array_Combinations($n, $r)
    Local $total = 1
    For $i = $r To 1 Step - 1
        $total *= ($n / $i)
        $n -= 1
    Next
    Return $total
EndFunc   ;==>New_Array_Combinations

Func _Create_Range(ByRef $rR_Values, $start, $end)
    Local $R_Range
    If BitAND($start = '', $end = '') Then
        $R_Range = $rR_Values
        Return $R_Range
    EndIf
    If $start = '' Then $start = 0
    If $end = '' Then
        $end = UBound($rR_Values)
    Else
        $end += 1
    EndIf
    $total = $end - $start
    Local $R_Range[$total]
    For $i = 0 To $total - 1
        $R_Range[$i] = $rR_Values[$start + $i]
    Next
    Return $R_Range
EndFunc   ;==>_Create_Range

Func _Shift(ByRef $array, ByRef $iSet, ByRef $done)
    Local $l
    If $iSet[0] = UBound($array) - 1 Then
        $done = 1
        Return
    EndIf
    $x = UBound($iSet) - 1
    While $x <> 0
        If $iSet[$x] <> UBound($array) - 1 Then
            $iSet[$x] += 1
            Return
        EndIf
        $x -= 1
        If $iSet[$x] <> UBound($array) - 1 Then
            $iSet[$x] += 1
            $l = $x
            Do
                $iSet[$l + 1] = $iSet[$x]
                $l += 1
            Until $l = UBound($iSet) - 1
            Return
        EndIf
    WEnd
EndFunc   ;==>_Shift

Func _Calc_Total($series, $parallel, $aTarget, $aArray, $resistorsN)
    Local $i, $index, $parallel_start = 0, $parallel_end = 0, $series_Start = 0, $series_end = 0, $totalp = 0, $totals = 0, $total
    If $parallel = $GUI_CHECKED Then
        For $i = UBound($aArray) - 1 To 0 Step - 1
            If $aArray[$i] <= $aTarget Then
                $index = $i - 1
                If $index <= 0 Then
                    $parallel_start = 0
                    $parallel_end = UBound($aArray) - 1
                    ExitLoop
                EndIf
                $parallel_start = $index
                $parallel_end = UBound($aArray) - 1
                ExitLoop
            EndIf
        Next
    EndIf
    $totalp = $parallel_end - $parallel_start + 1
    $totalp = New_Array_Combinations($totalp, $resistorsN)
    If $series = $GUI_CHECKED Then
        For $i = 0 To UBound($aArray) - 1
            If $aArray[$i] = $aTarget Then
                $series_end = $i + 1
                If $series_end > UBound($aArray) - 1 Then $series_end = UBound($aArray) - 1
                $series_Start = 0
                ExitLoop
            EndIf
            If $aArray[$i] > $aTarget Then
                $series_end = $i
                $series_Start = 0
                ExitLoop
            EndIf
        Next
    EndIf
    $totals += $series_end - $series_Start + 1
    $totals = New_Array_Combinations($totals, $resistorsN)
    $total += $totalp + $totals
    MsgBox(0, 'final', $total)
EndFunc   ;==>_Calc_Total

Complete_Resistance_Calculator.au3

Complete_Resistance_Calculator_V2.au3

Edited February 9, 2009 by bchris01

Achilles · February 6, 2009

Don't know anything about what it does.

Here's some suggestions for the GUI:

Add $CBS_DROPDOWNLIST (or something like that) to the combo boxes, that way people can edit their contents

You'll want to use _GUICtrlListView_SetColumnWidth() instead of adding a ton of spaces after the column text..

I would suggest rearranging the GUI a little bit, some places look cramped while others have too much space.

JRowe · February 6, 2009

Excellent idea, and great first edition.

trancexx · February 6, 2009

I like it (a lot). Nice idea. Looks good.

Only thing is that the resistors that I have on my self are usually with 5 color rings, and wider range of possible tolerances.

edit: 5 little stars from me

Edited February 6, 2009 by trancexx

weirddave · February 6, 2009

Pretty good !

A few years ago I wrote a parallel resistor calculator in C. I had a drop down for selecting the resistor series to use (E12, E24 etc..). This would be a welcome addition I feel

I'm not sure if you've done this (couldn't see it in the code), but you only need to check with values >= to the desired result, which speeds things up a bit.

In my version, I didn't specify a tolerance, I just printed the nearest combination/value above and below the desired result, might be worth thinking about.

I put an optional maximum R to use, you don't always want to use high values.

I did plan, but never got around to, having a custom R range. This would be really handy as sometimes you don't have a value to hand, or have odd values from other ranges.

I've attached a pic of my little effort for inpiration (or my humiliation )

For some reason it won't pick up the includes now, somethings got bugged on my system! Oh well, I'll play with it when I get home from work....

Well done!

Beege · February 6, 2009

Don't know anything about what it does.
Here's some suggestions for the GUI:
Add $CBS_DROPDOWNLIST (or something like that) to the combo boxes, that way people can edit their contents
You'll want to use _GUICtrlListView_SetColumnWidth() instead of adding a ton of spaces after the column text..
I would suggest rearranging the GUI a little bit, some places look cramped while others have too much space.

Thanks for the suggestions about the gui. I will add both $CBS_DROPDOWNLIST and _GUICtrlListView_SetColumnWidth() in to my script. If your curious about what my script does you should have a look here -> "http://en.wikipedia.org/wiki/Resistor". It explains what resistors are and the different ways resistance is calculated.

Beege · February 6, 2009

I like it (a lot). Nice idea. Looks good.
Only thing is that the resistors that I have on my self are usually with 5 color rings, and wider range of possible tolerances.
edit: 5 little stars from me

Thanks for looking (and the five stars). In the future i do plan on adding a section for calculating 5 band values.

Beege · February 6, 2009

Pretty good !
A few years ago I wrote a parallel resistor calculator in C. I had a drop down for selecting the resistor series to use (E12, E24 etc..). This would be a welcome addition I feel
I'm not sure if you've done this (couldn't see it in the code), but you only need to check with values >= to the desired result, which speeds things up a bit.
In my version, I didn't specify a tolerance, I just printed the nearest combination/value above and below the desired result, might be worth thinking about.
I put an optional maximum R to use, you don't always want to use high values.
I did plan, but never got around to, having a custom R range. This would be really handy as sometimes you don't have a value to hand, or have odd values from other ranges.
I've attached a pic of my little effort for inpiration (or my humiliation )
For some reason it won't pick up the includes now, somethings got bugged on my system! Oh well, I'll play with it when I get home from work....
Well done!

Thanks for the comments and the ideas. In the future i will implement options to load E12, E24 etc.. values. As for the custom R range, in a way I have already implemented that (if were talking about the same thing). The user would create a .txt file with only the values that he or she actually has on hand. Then import the values using the "import value" option. This lets the program only search for combination's made up of the values he loaded. Also I like the idea of putting a picture in the GUI for showing the type of connection. That looked really good in your snapshot. Thanks again!

gseller · February 6, 2009

Very nice! I got out of the field and don't need anything like this anymore but am sure many will use it and be thankful! Thanks for sharing!

weirddave · February 7, 2009

Thanks for the comments and the ideas. In the future i will implement options to load E12, E24 etc.. values. As for the custom R range, in a way I have already implemented that (if were talking about the same thing). The user would create a .txt file with only the values that he or she actually has on hand. Then import the values using the "import value" option. This lets the program only search for combination's made up of the values he loaded. Also I like the idea of putting a picture in the GUI for showing the type of connection. That looked really good in your snapshot. Thanks again!

If you look at my snapshot, you'll see a blue bar just below the Go button, that's a progress bar I put in place so the user can see roughly how long it's going to take to finish. I needed it because I allowed more than 3 parallel R's and it could take a long time if you picked lowish values (higher required R is much faster due to less checking required by not bothering with lower values - I see you always check all 47905 possibilities [3 R's]).

Just played with the import option, cool!

Beege · February 9, 2009

Great suggestion about the Range. I implemented that and it really speed things up a lot. In the future I plan on adding some kind of progress update. It really going to need that after adding all the E series. The number of combination's starts getting CRAZY!! Thanks again.

trancexx · February 9, 2009

Why are you positioning window at the beginning? My screen is not that big, for example.

Something is wrong with calculator. What is the proper way to use it now? It just hangs for me for about 30 sec.

Progress control will likely slow things down.

Beege · February 9, 2009

Why are you positioning window at the beginning? My screen is not that big, for example.
Something is wrong with calculator. What is the proper way to use it now? It just hangs for me for about 30 sec.
Progress control will likely slow things down.

Im not sure what you mean when you say "positioning window". The gui isnt that much bigger than before. The proper way to use it is still the same so i really want to figure this out. Does the program crash after it hangs for 30 sec or does it return normally?

Andreik · February 9, 2009

I like it. Only one suggestion: replace +/- with Chr(177) to look more good.

Regard,

Andreik

trancexx · February 9, 2009

Im not sure what you mean when you say "positioning window". The gui isnt that much bigger than before. The proper way to use it is still the same so i really want to figure this out. Does the program crash after it hangs for 30 sec or does it return normally?

You have this:

$Form1 = GUICreate("Resistance Calculator", 629, 657, 192, 151)oÝ÷ Ù*jË.ì¨º¯zj'Ú+Â+a±ÊÞz{"Íé^·l±¬µö«¨´íêÞÉè²©ky«(ú+x©r¦"¶*'x0whÂj+zè¥êðk,(ºW[zØb±«¢+ØÀÌØí½É´ÄôU%
ÉÑ ÅÕ½ÐíIÍ¥ÍÑ¹
±Õ±Ñ½ÈÅÕ½Ðì°ØÈä°ØÔÜ¤

As for the other thing, I'm dazed by fact that no one noticed Sleep(30000) in your script. Not even you.

Beege · February 9, 2009

As for the other thing, I'm dazed by fact that no one noticed Sleep(30000) in your script. Not even you.

Ahh your right! I forgot about the 30 sec sleep delay I put in there at the last minute to test the _tickstotime function. Ill change that right away. And thanks for pointing out the positioning. Ill change that too.

Beege · February 9, 2009

I like it. Only one suggestion: replace +/- with Chr(177) to look more good.
Regard,
Andreik

Good Call. Thanks

Fractured · August 22, 2018

fyi - Error on Line 359 = _Array_GetNext ($iN, $iR, $iLeft, $iTotal, $aIdx) in version 3.3.14.5 - _Array_GetNext is an internal function of array.au3

Will need to change to read __Array_GetNext ($iN, $iR, $iLeft, $iTotal, $aIdx) **notice double__, not single_**

Works as advertised now!

Resistance Calculator

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