GPI Commander 2

Home Video & 3D Utility GPI Commander 2
24 in / 8 out GPI to USB converter.
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Softron Media Services
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GPICommander is two things: a USB to GPI Converter and a software. You can send or receive GPI triggers using AppleScript, so it can be used with any application under MacOS X. If needed, an SDK is available if you want to have direct access to it without AppleScript (it also runs on Windows then and it enables you to control the unit by writing C code.)


It has 24 inputs (open-collector type, common ground) and 8 independant relay outputs but since each unit has a unique serial ID, you can chain more than once on the USB bus to have more inputs and/or outputs.

AppleScript Integration

Download our GPICommander application so you can :


Trigger an AppleScript when any of the 8 input changes status (On to OFF or OFF to ON).

Use AppleScripts to trigger the 24 outputs of the GPICommander box.

Direct Integration

A few of our software have a direct integration with GPICommander (so without having to create AppleScripts). For example:


With MovieRecorder, you can trigger the recording

With OnTheAir Video, you can play/pause, skipt to next, etc...

With Multicam Logger, you can change the selected angles when connected to the GPIout of your production switcher


Easy integration with other applications

Trigger GPI outputs from any application that can send AppleScripts

A GPI input status change can control any AppleScriptable application

REST API for easy integration in various workflows

Direct integration with some of our applications (no need to know AppleScripts)



In / out


24 inputs on DB 25 (ground on pin 25)

8 outputs on phoenix connector with screw contacts

Volume control (for the general output, the document, or the clip)


Automatically analyze audio to set the out point

Mac OS application


Available for free

Manual controls (set outputs on or off or pulse)

AppleScriptable (set outputs from third party application)

Can trigger AppleScripts when a change of status of one of the inputs is detected (different action possible for on or off change)

Windows applications


Not developed but if you are a developer, contact us to get the protocol.

Third party integration


Can be controlled by third party software through AppleScripts.

Integration possible with most of our products (check the features list to see if it can trigger GPI).

  • Minimum System requirements
    • MAC: G4, OS 10.4.11, 2GB RAM
    • PC: no software supplied - developers can ask for the API
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