Cedrus Response Pad?

[Trevor]

I'd like to use a Cedrus Response Pad RB Series for collecting response and timing data. I want to use it to replace simple keystrokes, but am not sure where to get started. Is there any documentation for using this with Vizard? Thanks.

[Jeff]

You can use the vizcedrus module. To connect to the pad use the following:

#Connect to cedrus pad
import vizcedrus
vizcedrus.open() #Default: port=1 , baudRate=19200

Then you can register callback functions for button events:

#Setup cedrus callbacks
def cedrusButtonDown(e):
	print e.button,'button down' 

def cedrusButtonUp(e):
	e.button,'button up'

viz.callback(vizcedrus.BUTTONDOWN_EVENT,cedrusButtonDown)
viz.callback(vizcedrus.BUTTONUP_EVENT,cedrusButtonUp)