Unable to detect trigger in a Siemens scanner

Builder
2

Hi-

Which trigger box do you have? We’ve generally found it more reliable to use the trigger as a keyboard emulation.

But if you’re really set on reading from the parallel port you might find these threads helpful:

  1. Reading from parallel port
  2. Reading parallel port pin (for acquiring response from response pad) for MEG experiment - #12 by jtseng

I believe you’ll need a line of code to read data from the port and do something with it.

-PM