Send trigger (biosemi actiview) for every key press

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4

OK, you want to follow roughly the guidance in this post But some tweaks.

Add a code component.

In the Begin Experiment tab:

import serial
port = serial.Serial('COM1')# where COM1 is the address of your port

In the Begin Routine tab

CountedKeys = 0

In the Each frame tab

if len(key_resp.keys) > CountedKeys:
    CountedKeys += 1 # increase the keys that were counted
    port.write([0x01]) # sent the trigger

Make sure you have a keyboard component that is called “key_resp” where Data > Store data is set to “All Keys”

Please do feed back if that works.

Hope this helps,
Becca