since a long time I’m struggling to get a Cedrus button box working with PsychoPy (I’m using a Cedrus response pad RB-540). No matter which version of PsychPy I’m trying on Windows computers it does not work and I always get the error message “Could not find a Cedrus device”.
With most Macs it’s working. On one Mac computer I get the same error message, but it disappears after unplugging the button box and plugging it back again. On one Mac it does not work at all. On all machines I tried to replace the pyxid (e.g., from here: https://github.com/cedrus-opensource/pyxid) as it was suggested, for example, here: Cedrus Button Box - “no attribute” error.
My newest experience on one Windows machine: When I create a new experiment with only one text component and one Cedrus component (created in the Builder) the button box works perfectly. The same works if I loop around the routine, but as soon as I insert another routine with a second Cedrus component I get the same error message “Could not find a Cedrus device” (if the second component is text only, everything works fine). I replicated this effect with different versions of PsychoPy.
Has anyone an idea how to get a Cedrus button box working with PsychoPy?