response time (case 3948)

[empirifolb]

how do I use directRt to measure the reaction time of an external switch closure that would be recognized through usb port

[timdritchie]

Hi. If this is continues to be relevant to you, the following DirectRT v2012 help link provides a good overview that will help you associate reaction times and port activity:

http://www.empirisoft.com/directrt/help/_HelpContents.htm?directrt_directrt_help_main_menu.htm

via the Search tab, type "TTL Signals"

Additionally, in the DirectRT folder on your computer includes an example, located in:

…\DirectRT\samples\5 other features\13 ttl signals

If you have further questions about TTL-related issues feel free to post them here.