Dear ML2 Support Community,
We are planning to use the Magic Leap 2 (ML2) headset in conjunction with an EEG recording system (Wearable Sensing’s DSI-7). We will use ML2 to show different images and record the EEG signal. Our experimental setup requires precise synchronization between ML2 stimuli/events and EEG data.
To achieve synchronization, we want to send digital trigger signals from ML2 to a Trigger Hub, which subsequently forwards these triggers to the EEG headset, so in the EEG signal we acquired, there will be synch event information. The Trigger Hub accepts parallel port input signals or analog trigger signals.
Could you please advise on the following points?
- Trigger Signal via USB-C:
- Does ML2 support outputting digital trigger signals via the USB-C port?
- If yes, what protocols/interfaces (e.g., serial communication, HID events, GPIO over USB-C, etc.) are supported for such signals?
- Compatibility with USB-to-Parallel Interfaces:
- Can the ML2 interface reliably with USB-to-parallel adapters or virtual COM port devices (such as the MMBT-S trigger interface box from Neurospec)?
- Are there known recommended USB-to-parallel or USB-to-serial devices officially tested and supported with ML2?
- Another option is to have the ML2 send signals (wire/wireless) directly to a PC, and then use existing software to forward triggers via COM ports. This might be the simplest approach?
Thank you for your help. I appreciate any insights or official guidance you can provide on this setup!
Best regards,
Zipai Wang