# Trigger a TMS machine by external computer with USB DIO ?

**URL:** <https://psychtoolbox.discourse.group/t/trigger-a-tms-machine-by-external-computer-with-usb-dio/340>\
**Category:** Uncategorized\
**Created:** [April 17, 2013, 3:48pm UTC](https://psychtoolbox.discourse.group/t/trigger-a-tms-machine-by-external-computer-with-usb-dio/340 "2013-04-17T15:48:49Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![vrakotomalala](https://avatars.discourse-cdn.com/v4/letter/v/c6cbf5/32.png) [@vrakotomalala](https://psychtoolbox.discourse.group/u/vrakotomalala)\
**Post date:** [April 17, 2013, 3:48pm UTC](https://psychtoolbox.discourse.group/t/trigger-a-tms-machine-by-external-computer-with-usb-dio/340/1 "2013-04-17T15:48:49Z")

</div>

Hi,  
  
I have read on this website   
  
[http://psychtoolbox.org/ptb-2/usb.html](http://psychtoolbox.org/ptb-2/usb.html)  
  
that psychHID only works with HID compliant device.  
  
I'd like to trigger a TMS machine by an external computer (the TMS can be triggered by BNC 5V TTL).  
  
I found this device, USB-DIO, that has low latency (less than 2 ms):  
[http://sunburst.usd.edu/~schieber/psyc770/AIOUSB32.html](http://sunburst.usd.edu/~schieber/psyc770/AIOUSB32.html)  
  
I have asked Acces and they replied that a USB-DIO-32 or a USB-DIO-16A would do the job as they have TTL output.  
  
I would like to know if someone have experience with Acces USB DIO and if they would work with Psychtoolbox. I am bit confused about the HID- compliance.  
  
many Thanks

---

<div class="post-metadata">

**Author:** ![tattooed.tentacle](https://avatars.discourse-cdn.com/v4/letter/t/ec9cab/32.png) [@tattooed.tentacle](https://psychtoolbox.discourse.group/u/tattooed.tentacle)\
**Post date:** [April 17, 2013, 9:45pm UTC](https://psychtoolbox.discourse.group/t/trigger-a-tms-machine-by-external-computer-with-usb-dio/340/2 "2013-04-17T21:45:22Z")

</div>

These are much more up-to-date links, you have lots of options, though it sounds as if the Acces should work in principal (for Windows anyway):  
  
[http://psychtoolbox.org/FaqTTLTrigger](http://psychtoolbox.org/FaqTTLTrigger)  
[http://psychtoolbox.org/FaqTTLTriggerOSXLinux](http://psychtoolbox.org/FaqTTLTriggerOSXLinux)  
  

> --- In [psychtoolbox@yahoogroups.com](mailto:psychtoolbox@yahoogroups.com), "Veneree" \<vrakotomalala@...\> wrote:  
> \>  
> \> Hi,  
> \>   
> \> I have read on this website   
> \>   
> \> [http://psychtoolbox.org/ptb-2/usb.html](http://psychtoolbox.org/ptb-2/usb.html)  
> \>   
> \> that psychHID only works with HID compliant device.  
> \>   
> \> I'd like to trigger a TMS machine by an external computer (the TMS can be triggered by BNC 5V TTL).  
> \>   
> \> I found this device, USB-DIO, that has low latency (less than 2 ms):  
> \> [http://sunburst.usd.edu/~schieber/psyc770/AIOUSB32.html](http://sunburst.usd.edu/~schieber/psyc770/AIOUSB32.html)  
> \>   
> \> I have asked Acces and they replied that a USB-DIO-32 or a USB-DIO-16A would do the job as they have TTL output.  
> \>   
> \> I would like to know if someone have experience with Acces USB DIO and if they would work with Psychtoolbox. I am bit confused about the HID- compliance.  
> \>   
> \> many Thanks  
> \>