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I am planning on building a "How To - AutoIT & Phidgets" and am looking for direction on how to document it. Phidgets are "Products for USB Sensing and Control" that can be utilized with AutoIT. They allow physical interface, functions and events / input and output through COM in the case of AutoIT. Check out the Phidgets page for more information, and go to Trossen Robotics if you are going to buy (Cheaper and Faster). The image is a link to the video right after I was able to get AutoIT and the 1063 Bipolar stepper controllers talking. I am building a 3-Axis CNC mill. I Know AutoIT and Phidgets are not the ideal way to go when building a mill... its a learning experience. Quick piece together of code used in video above. #include <GUIConstantsEx.au3> GUICreate("PhidgetStepper Control Test",500,400)$Add_2C_B = GUICtrlCreateButton("Add to Current Position (+10000 1/16)", 5, 5, 490, 30) $Sub_FC_B = GUICtrlCreateButton("Subtract from Current Position (-10000 1/16)", 5, 40, 490, 30) $Output_E = GUICtrlCreateEdit("", 5, 335, 490, 60)GUISetState(@SW_SHOW) ;create the phidget object $oPhidget = ObjCreate("phidget21COM.PhidgetStepper");open the Phidget system $oPhidget.Open(130664) $oPhidget.WaitForAttachment(3000) If NOT $oPhidget.IsAttached Then MsgBox(0, "Error", "Phidget Device not attached") Exit EndIf ;register Phidget events $oPhidEvents = ObjEvent($oPhidget, "phid1_");Power Stepper Motor, index motor 0 $oPhidget.Engaged(0) = 1 ;set Stepper control values $oPhidget.CurrentLimit(0) = 00.70 $oPhidget.VelocityLimit(0) = 7000.00 $oPhidget.Acceleration(0) = 18100.00;set the current position $oPhidget.CurrentPosition(0) = 0 ;read current position to variable $Current_P = $oPhidget.CurrentPosition(0)GUICtrlSetData($Output_E, $Current_P) While 1 $msg = GUIGetMsg()Select Case $msg = $GUI_EVENT_CLOSE MsgBox(0,"Application Alert", "Application Closing") ExitLoopCase $msg = $Add_2C_B $Current_P = $oPhidget.CurrentPosition(0) $oPhidget.TargetPosition(0) = $Current_P +10000 GUICtrlSetData($Output_E, $Current_P) Case $msg = $Sub_FC_B $Current_P = $oPhidget.CurrentPosition(0) $oPhidget.TargetPosition(0) = $Current_P -10000 GUICtrlSetData($Output_E, $Current_P) EndSelect WEnd;power off stepper at index 0 $oPhidget.Engaged(0) = 0 ;close $oPhidget.Close();Phidget Event Handlers Func phid1_OnDetach($Index, $IRValue) MsgBox(0,"Error", "Phidget detached") Exit EndFunc Sorry its one blob, it keeps coming out like that. So where should I start a thread or threads, examples or questions, as it will be both and more. I have a few different Phidgets and will be progressing the capabilities and limitations with the help of the forum.