pyevt - A python package for the Event Exchanger EVT-2 USB hardware

This repository contains the code to communicate with the EVT-2 USB devices developed by the Research Support group of the faculty of Behavioral and Social Science from the University of Groningen. This code was originally written by Eise Hoekstra and Mark M. Span and is now maintained by Martin Stokroos and Mark M. Span

Purpose

The EVT-2 is an event marking and triggering device intended for physiological experiments. pyevt is a Python module to communicate with EVT-2 hardware (+derivatives).

Dependencies

pyevt uses the HIDAPI python module to communicate over USB according the HID class. https://pypi.org/project/hidapi/

Usage

Install pyevt with:

pip install pyevt or pip install --user pyevt on managed computers.

Example

from pyevt import EvtExchanger
myevt = EvtExchanger()
myevt.Select("EventExchanger")

myevt.SetLines(0) # reset outputs
myevt.PulseLines(170, 1000) # value=170, duration=1s

del myevt # remove device handle