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Keyboard Wedges Overview
Hardware & Software Keyboard Wedges

See below for Comparison of all WedgeLink hardware and software keyboard wedges from MicroRidge.

Video, brochure and other resources can be found on the WedgeLink Videos & PDFs page.

If you are looking for the WedgeLink DG (renamed GageWay KW) or Gage Interfaces with Keyboard Wedges, refer to the GageWay Interfaces Overview page.

What is a Keyboard Wedge?
A keyboard wedge is used when you are trying to get data from some type of measuring device into applications that cannot accept data from a serial port.  A software keyboard wedge reads data from a serial port and passes this data to a PC application in such a manner that the application thinks the data is entered via the keyboard.  A hardware wedge reads data from digital gages or RS-232 devices and sends the data to the PC via a keyboard or USB port.  The data sent by the hardware wedge looks like keyboard data to the current application.  The more common applications that are used with keyboard wedges are Microsoft Excel, Microsoft Access, and other database types of applications.

Software and hardware keyboard wedges are used extensively in data acquisition applications that include statistical programs, spreadsheets, barcode, LIMS, etc.  MicroRidge keyboard wedges can accept input data from any RS-232 serial device.  The data is then passed to a Windows application in such a manner that the application thinks the data is actually coming from the keyboard.

About Software Keyboard Wedges
The advantage of a software wedge is that it provides much more flexibility in the formatting of data for presentation to the application and control of the target where the data is sent.  In addition to transferring the information to the application, the WedgeLink software keyboard wedge can also simultaneously send the information to a disk file.  The disadvantage of a software wedge is that your software wedge settings can be changed by your users.

About Hardware Keyboard Wedges
It is not uncommon in a production type environment that a company will insist upon using a hardware wedge rather than a software wedge.  An advantage of a hardware wedge is that it is simpler to use because it is more like a plug 'n play device.  In most cases, just plug it in and you are ready to go.

The following table compares the WedgeLink keyboard wedges available from MicroRidge.  Click on the photo for more detail.

Wedge Model
Click to View User's
Wedge Type
Supported Gages
& Devices
Read Switch
WedgeLink SP Hardware RS-232 gages and devices
at 19.2K, 9600 or 4800 baud.
No USB port No 1.76"x1.24"x.63" 4 specific models available:
  • 19.2K-N-8-1

  • 9600-N-8-1
  • 9600-E-7-1
  • 4800-E-7-1 or 2 (also supports gages with the Simplex Opto or Proximity interfaces).
WedgeLink AT Hardware RS-232 gages and devices Yes USB port Yes 2.61"x2.61"x1.10" Use this hardware wedge if you need data parsing or selectable baud rates.  Keyboards emulated include North America, German, French and Belgium.
WedgeLink Lite Software RS-232 gages and devices Yes N/A No N/A Use this software wedge if data parsing is not required.  Allows you to add a date/time stamp as a data prefix
WedgeLink Standard Use this software wedge if you need full data parsing capabilities.



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Revised February 22, 2018