I don't think you can output TTL using the actual serial port, as that is RS-232, not TTL logic levels. If you're using the serial port, you'll need a converter, like this.
Type: Posts; User: Helenawe
I don't think you can output TTL using the actual serial port, as that is RS-232, not TTL logic levels. If you're using the serial port, you'll need a converter, like this.
if your experiment generator presents an image and does not check for a response in a timely fashion, your OS intervenes, or an anti-virus check runs, your Response Times will remain inaccurate...