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Benoit Pierre edited this page Apr 9, 2016 · 14 revisions

Stenotype Machines

Supported protocols

Plover supports several protocols that are in use by various machines:

  • Stentura serial: most machines by Stenograph and many others.
  • Gemini PR serial: typically any recent machine made by the Neutrino Group, such as the Piper, Revolution, or Infinity series.
  • TX Bolt: an older protocol supported by some machines as a primary or secondary protocol.
  • Treal: used only by the Treal from Word Technologies.
  • Passport: used only by the Passport Writer from Advantage Software.

This means that, in theory, many machines work with Plover.

Known supported stenotypes

The following machines have been confirmed by users to work with Plover after actually trying it:

Product Name Manufacturer Connection Protocol Comments
Elan Cybra Student Stenograph serial TX Bolt
Flash Writer ProCAT
Gemini2 Neutrino Group
Lightspeed Stenovations
Infinity Ergonomic Neutrino Group
Infinity Genesis Neutrino Group serial Gemini PR
Passport Advantage Software USB -
Protege Stenograph
Revolution Grand Neutrino Group
SOFT/HRUF Scott Urueta Open source hardware
Stenoboard Utopen Open source hardware
Stentura 400 SRT Stenograph
Tréal Word technologies USB -
Wave Stenograph

Keyboards

Plover is best used with a keyboard supporting N-Key Rollover (NKRO).

What's NKRO?

This is a feature that certain keyboards have that let the keyboards register each key regardless of other keys being pressed. Read the Wikipedia entry about NKRO.

How do I know if my keyboard has NKRO?

A simple test is to open up a text editor and--while holding down both shift keys--type each letter on your keyboard. If all keys are typed into the text editor, your keyboard probably has NKRO.

This site provides a web application that lets you test your keyboard's capabilities for registering multiple key presses. To test, click where it says "click to use", then each key you press lights up green in the picture of a keyboard. Press the middle row keys asdfjkl; and with a normal keyboard only 6 of the 8 keys will light up green, maybe fewer, but if your keyboard has n-key rollover, all 8 will light up green. Then press other multiple-key combinations such as yuhj and see if they all light up green.

What if my keyboard is not capable of NKRO?

If you don't have a keyboard that's capable of NKRO, but still want to give Plover a try, you can arpeggiate/roll the keyboard chords. More info can be found at the bottom of this post.

Known supported keyboards

Product Name Manufacturer Comments Price
Apex m-800 SteelSeries NKRO over USB $199
CM Storm Quickfire TK Cooler Master NKRO over USB $85
Noppoo Choc Noppoo NKRO over USB $95
Ergo Pro Matias NKRO over USB $200
Ergodox Ergodox NKRO over USB $295
G710+ Logitech NKRO over USB $130
Keyboardio Keyboardio NKRO over USB $329
Majestouch-2 Filco NKRO over USB $167
Das Keyboard 4 Ultimate Das Keyboard NKRO over USB $169
Ultimate Hacking Keyboard Ultimate Gadget Labs NKRO over USB $250
Vengeance K65 Corsair NKRO over USB $90
ZM-K600S Zalman NKRO over USB $40