Sends data from a serial port when the element starts, then registers a trigger and ends on its own. Most commonly set syncExperiment = <cd>true<cd> to tell the element to synchronize the experiment at trigger, then set the timing of any element in the trial (element properties start/end field t_sync) and/or subsequent trial timing (trial object property start field t_sync) from sync. You can also set any element in the trial to start/end from triggers more generally using element properties start/end fields trigger/TriggerBy.

Trigger value recorded in record property trigger is a row vector of bytes (integers 0–255) sent. Trigger time recorded in triggerTime or syncTime is time send completed relative to trial 1 start.

If you want to set options for the port, you can use pb_prefs → "Other" tab. Or to set for only the current experiment, add an object of type port and set its properties. Typically you don't need to.

Currently portReceiver elements only work with serial ports.

"Ends on its own" means ends automatically at that point. If an element can end on its own, you don't need to set end conditions for it in property end (unless you want it to maybe end earlier).

portName

No default

A string that is name of the serial port, as accepted by Psychtoolbox IOPort('OpenSerialPort'). From Psychtoolbox documentation: On Windows this could be, e.g. <cds>"COM1"<cds>, <cds>"COM2"<cds>, etc.; on Mac it is a path to a BSD device file, e.g. <cds>"/dev/cu.usbserial-FT3Z95V5"<cds> for a serial-over-USB device with unique ID FT3Z95V5; on Linux e.g. <cds>"/dev/ttyS0"<cds> for the first real serial port, <cds>"/dev/ttyUSB0"<cds> for the first serial-over-USB device, etc.

data

No default

Row vector of byte values (integers 0–255) to send.

(None)