> For the complete documentation index, see [llms.txt](https://zapit.gitbook.io/user-guide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://zapit.gitbook.io/user-guide/installation-and-setup/configuring-zapit/ni-daq-settings.md).

# NI DAQ settings

#### `NI`

* `device_ID` **must** be set to the name of the DAQ you will use to run Zapit. Open [NI MAX](https://www.ni.com/en-gb/support/documentation/supplemental/21/what-is-ni-measurement---automation-explorer--ni-max--.html) and find the name of your DAQ. Likely it will be called `Dev1`, `Dev2` or similar. If you wish, you can change the name to something more meaningful, such as "`zapit`". Either way, find the name and enter this as the value of `device_ID`.
* `wrapper` determines the method used by MATLAB to communicate with [NI DAQmx](https://www.ni.com/docs/en-US/bundle/ni-daqmx/page/daqhelp/nidaqoverview.html). It should stay as `dotnet`
* `samplesPerSecond` It's probably a bad idea to edit this.
* `triggerChannel` defines the channel on which Zapit looks for a trigger before initiating stimulation during an experiment.