Muse S Athena Support

[BrianMohseni]

Muse S Athena has issues connecting with Muse LSL, even for pre-existing channels, due to some changes made (I believe in naming convention). Also added FNIRS.

Not in any rush, but I was wondering if support for Muse S Athena was being worked on.

Thanks for your hard work thus far!

[tjthejuggler]

Is there any update on this? I want to get one, but only once I can do stuff with it.

[kowalej]

Anyone have more info on the Athena? I have at least one BlueMuse user asking to support the device, but I don't have access to the hardware. I've tried to get some more info, here's the thread: kowalej/BlueMuse#73. I could probably help make adjustments if needed to Muse-LSL as well.

Here's the screenshot the user sent with the GATT characteristics, I'm seeing the same data service as always, but with way less than expected channels showing up.

<img width="3840" height="2032" alt="Image" src="https://github.com/user-attachments/assets/810560d6-85da-496e-9dbe-466e455ec847" /

[BrianMohseni]

Anyone have more info on the Athena? I have at least one BlueMuse user asking to support the device, but I don't have access to the hardware. I've tried to get some more info, here's the thread: kowalej/BlueMuse#73. I could probably help make adjustments if needed to Muse-LSL as well.

Here's the screenshot the user sent with the GATT characteristics, I'm seeing the same data service as always, but with way less than expected channels showing up.

<img width="3840" height="2032" alt="Image" src="https://github.com/user-attachments/assets/810560d6-85da-496e-9dbe-466e455ec847" /

Apologies for the late reply. here is everything I found:

Service: 00001801-0000-1000-8000-00805f9b34fb: Generic Attribute Profile
Characteristic: 00002a05-0000-1000-8000-00805f9b34fb
Service Handle: 1
Service UUID: 00001801-0000-1000-8000-00805f9b34fb
Properties: indicate
Description: Service Changed
Descriptor: 00002902-0000-1000-8000-00805f9b34fb (Client Characteristic Configuration (CCCD)) | Handle: 4
Characteristic: 00002b29-0000-1000-8000-00805f9b34fb
Service Handle: 1
Service UUID: 00001801-0000-1000-8000-00805f9b34fb
Properties: write,read
Description: Client Supported Features
No descriptors
Characteristic: 00002b2a-0000-1000-8000-00805f9b34fb
Service Handle: 1
Service UUID: 00001801-0000-1000-8000-00805f9b34fb
Properties: read
Description: Database Hash
No descriptors
Service: 00001800-0000-1000-8000-00805f9b34fb: Generic Access Profile
Characteristic: 00002a00-0000-1000-8000-00805f9b34fb
Service Handle: 9
Service UUID: 00001800-0000-1000-8000-00805f9b34fb
Properties: read
Description: Device Name
No descriptors
Characteristic: 00002a01-0000-1000-8000-00805f9b34fb
Service Handle: 9
Service UUID: 00001800-0000-1000-8000-00805f9b34fb
Properties: read
Description: Appearance
No descriptors
Characteristic: 00002a04-0000-1000-8000-00805f9b34fb
Service Handle: 9
Service UUID: 00001800-0000-1000-8000-00805f9b34fb
Properties: read
Description: Peripheral Preferred Connection Parameters
No descriptors
Service: 0000fe8d-0000-1000-8000-00805f9b34fb: Interaxon Inc.
Characteristic: 273e0001-4c4d-454d-96be-f03bac821358
Service Handle: 16
Service UUID: 0000fe8d-0000-1000-8000-00805f9b34fb
Properties: notify,write-without-response
Description: Control / Command
Descriptor: 00002902-0000-1000-8000-00805f9b34fb (Client Characteristic Configuration (CCCD)) | Handle: 19
Subscribing to 273e0001-4c4d-454d-96be-f03bac821358 (Control / Command)
CCCD after subscribe: 0100 notify=True indicate=False
Characteristic: 273e0014-4c4d-454d-96be-f03bac821358
Service Handle: 16
Service UUID: 0000fe8d-0000-1000-8000-00805f9b34fb
Properties: notify
Description: Aux Sensor Stream (Accel/Gyro/Battery)
Descriptor: 00002902-0000-1000-8000-00805f9b34fb (Client Characteristic Configuration (CCCD)) | Handle: 22
Subscribing to 273e0014-4c4d-454d-96be-f03bac821358 (Aux Sensor Stream (Accel/Gyro/Battery))
CCCD after subscribe: 0100 notify=True indicate=False
Characteristic: 273e0013-4c4d-454d-96be-f03bac821358
Service Handle: 16
Service UUID: 0000fe8d-0000-1000-8000-00805f9b34fb
Properties: notify
Description: EEG Stream
Descriptor: 00002902-0000-1000-8000-00805f9b34fb (Client Characteristic Configuration (CCCD)) | Handle: 25
Subscribing to 273e0013-4c4d-454d-96be-f03bac821358 (EEG Stream)
CCCD after subscribe: 0100 notify=True indicate=False

The descriptions are based on prior naming conventions.

[BrianMohseni]

Anyone have more info on the Athena? I have at least one BlueMuse user asking to support the device, but I don't have access to the hardware. I've tried to get some more info, here's the thread: kowalej/BlueMuse#73. I could probably help make adjustments if needed to Muse-LSL as well.
Here's the screenshot the user sent with the GATT characteristics, I'm seeing the same data service as always, but with way less than expected channels showing up.
<img width="3840" height="2032" alt="Image" src="https://github.com/user-attachments/assets/810560d6-85da-496e-9dbe-466e455ec847" /

Apologies for the late reply. here is everything I found:

Service: 00001801-0000-1000-8000-00805f9b34fb: Generic Attribute Profile
UUID: 00002a05-0000-1000-8000-00805f9b34fb
Service Handle: 1
Service UUID: 00001801-0000-1000-8000-00805f9b34fb
Properties: indicate
Description: Service Changed
Descriptor: 00002902-0000-1000-8000-00805f9b34fb (Client Characteristic Configuration (CCCD)) | Handle: 4
UUID: 00002b29-0000-1000-8000-00805f9b34fb
Service Handle: 1
Service UUID: 00001801-0000-1000-8000-00805f9b34fb
Properties: read,write
Description: Client Supported Features
No descriptors
UUID: 00002b2a-0000-1000-8000-00805f9b34fb
Service Handle: 1
Service UUID: 00001801-0000-1000-8000-00805f9b34fb
Properties: read
Description: Database Hash
No descriptors
Service: 00001800-0000-1000-8000-00805f9b34fb: Generic Access Profile
UUID: 00002a00-0000-1000-8000-00805f9b34fb
Service Handle: 9
Service UUID: 00001800-0000-1000-8000-00805f9b34fb
Properties: read
Description: Device Name
No descriptors
UUID: 00002a01-0000-1000-8000-00805f9b34fb
Service Handle: 9
Service UUID: 00001800-0000-1000-8000-00805f9b34fb
Properties: read
Description: Appearance
No descriptors
UUID: 00002a04-0000-1000-8000-00805f9b34fb
Service Handle: 9
Service UUID: 00001800-0000-1000-8000-00805f9b34fb
Properties: read
Description: Peripheral Preferred Connection Parameters
No descriptors
Service: 0000fe8d-0000-1000-8000-00805f9b34fb: Interaxon Inc.
UUID: 273e0001-4c4d-454d-96be-f03bac821358
Service Handle: 16
Service UUID: 0000fe8d-0000-1000-8000-00805f9b34fb
Properties: notify,write-without-response
Description: Unknown
Descriptor: 00002902-0000-1000-8000-00805f9b34fb (Client Characteristic Configuration (CCCD)) | Handle: 19
Subscribing to 273e0001-4c4d-454d-96be-f03bac821358/(Unknown)
CCCD after subscribe: 0000 notify=False indicate=False
UUID: 273e0014-4c4d-454d-96be-f03bac821358
Service Handle: 16
Service UUID: 0000fe8d-0000-1000-8000-00805f9b34fb
Properties: notify
Description: Unknown
Descriptor: 00002902-0000-1000-8000-00805f9b34fb (Client Characteristic Configuration (CCCD)) | Handle: 22
Subscribing to 273e0014-4c4d-454d-96be-f03bac821358/(Unknown)
CCCD after subscribe: 0000 notify=False indicate=False
UUID: 273e0013-4c4d-454d-96be-f03bac821358
Service Handle: 16
Service UUID: 0000fe8d-0000-1000-8000-00805f9b34fb
Properties: notify
Description: Unknown
Descriptor: 00002902-0000-1000-8000-00805f9b34fb (Client Characteristic Configuration (CCCD)) | Handle: 25
Subscribing to 273e0013-4c4d-454d-96be-f03bac821358/(Unknown)
CCCD after subscribe: 0000 notify=False indicate=False

The descriptions are based on prior naming conventions.

I should also mention that the descriptions were not all correct, so I went back in and just pulled the raw data rather than my estimates. here is an updated version:

Service: 00001801-0000-1000-8000-00805f9b34fb: Generic Attribute Profile
UUID: 00002a05-0000-1000-8000-00805f9b34fb
Service Handle: 1
Service UUID: 00001801-0000-1000-8000-00805f9b34fb
Properties: indicate
Description: Service Changed
Descriptor: 00002902-0000-1000-8000-00805f9b34fb (00002902-0000-1000-8000-00805f9b34fb (Handle: 4): Client Characteristic Configuration) | Handle: 4
UUID: 00002b29-0000-1000-8000-00805f9b34fb
Service Handle: 1
Service UUID: 00001801-0000-1000-8000-00805f9b34fb
Properties: write,read
Description: Client Supported Features
No descriptors
UUID: 00002b2a-0000-1000-8000-00805f9b34fb
Service Handle: 1
Service UUID: 00001801-0000-1000-8000-00805f9b34fb
Properties: read
Description: Database Hash
No descriptors
Service: 00001800-0000-1000-8000-00805f9b34fb: Generic Access Profile
UUID: 00002a00-0000-1000-8000-00805f9b34fb
Service Handle: 9
Service UUID: 00001800-0000-1000-8000-00805f9b34fb
Properties: read
Description: Device Name
No descriptors
UUID: 00002a01-0000-1000-8000-00805f9b34fb
Service Handle: 9
Service UUID: 00001800-0000-1000-8000-00805f9b34fb
Properties: read
Description: Appearance
No descriptors
UUID: 00002a04-0000-1000-8000-00805f9b34fb
Service Handle: 9
Service UUID: 00001800-0000-1000-8000-00805f9b34fb
Properties: read
Description: Peripheral Preferred Connection Parameters
No descriptors
Service: 0000fe8d-0000-1000-8000-00805f9b34fb: Interaxon Inc.
UUID: 273e0001-4c4d-454d-96be-f03bac821358
Service Handle: 16
Service UUID: 0000fe8d-0000-1000-8000-00805f9b34fb
Properties: write-without-response,notify
Description: Unknown
Descriptor: 00002902-0000-1000-8000-00805f9b34fb (00002902-0000-1000-8000-00805f9b34fb (Handle: 19): Client Characteristic Configuration) | Handle: 19
Subscribing to 273e0001-4c4d-454d-96be-f03bac821358/(Unknown)
CCCD after subscribe: 0100 notify=True indicate=False
UUID: 273e0014-4c4d-454d-96be-f03bac821358
Service Handle: 16
Service UUID: 0000fe8d-0000-1000-8000-00805f9b34fb
Properties: notify
Description: Unknown
Descriptor: 00002902-0000-1000-8000-00805f9b34fb (00002902-0000-1000-8000-00805f9b34fb (Handle: 22): Client Characteristic Configuration) | Handle: 22
Subscribing to 273e0014-4c4d-454d-96be-f03bac821358/(Unknown)
CCCD after subscribe: 0100 notify=True indicate=False
UUID: 273e0013-4c4d-454d-96be-f03bac821358
Service Handle: 16
Service UUID: 0000fe8d-0000-1000-8000-00805f9b34fb
Properties: notify
Description: Unknown
Descriptor: 00002902-0000-1000-8000-00805f9b34fb (00002902-0000-1000-8000-00805f9b34fb (Handle: 25): Client Characteristic Configuration) | Handle: 25
Subscribing to 273e0013-4c4d-454d-96be-f03bac821358/(Unknown)
CCCD after subscribe: 0100 notify=True indicate=False

in case you have suggestions as to scraping data. half of this was vibe coded:

import asyncio
from bleak import BleakScanner, BleakClient

MUSE_DEVICE_NAME = "Muse"


async def notification_handler(sender, data: bytearray):
    stream_name = sender
    print(f"[{stream_name}] {data.hex()}")


async def enable_notify_with_check(client, char):
    print(f"    Subscribing to {char.uuid}/({char.description})")
    await client.start_notify(char.uuid, notification_handler)

    await asyncio.sleep(0.2)

    try:
        for desc in char.descriptors:
            if desc.uuid == "00002902-0000-1000-8000-00805f9b34fb":
                val = await client.read_gatt_descriptor(desc.handle)
                enabled = int.from_bytes(val, "little")
                print(
                    f"       CCCD after subscribe: {val.hex()} "
                    f"notify={bool(enabled & 0x0001)} indicate={bool(enabled & 0x0002)}"
                )
    except Exception as e:
        print(f"       (Could not re-check CCCD: {e})")


async def main():
    print("Scanning for devices...")
    devices = await BleakScanner.discover()
    muse_device = None

    for d in devices:
        if MUSE_DEVICE_NAME in (d.name or ""):
            muse_device = d
            break

    if not muse_device:
        print("Muse not found")
        return

    async with BleakClient(muse_device) as client:
        print("Connected")

        for service in client.services:
            print(f"Service: {service.uuid}: {service.description}")
            for char in service.characteristics:
                props = ",".join(char.properties)

                print(f" UUID: {char.uuid}")
                print("     Service Handle: ", char.service_handle)
                print("     Service UUID: ", char.service_uuid)
                print(f"    Properties: {props}")
                print(f"    Description: {char.description}")

                if char.descriptors:
                    for desc in char.descriptors:
                        print(f"    Descriptor: {desc.uuid} ({desc}) | Handle: {desc.handle}")
                else:
                    print("    No descriptors")

                if "notify" in char.properties:
                    await enable_notify_with_check(client, char)


if __name__ == "__main__":
    asyncio.run(main())

[kowalej]

There's some discussion now on the NeuroTechX Slack, with the assumption that someone will make a recording using HCI snoop log on Android. That should give us a pretty good idea of what characteristics are being used and what the data looks like. See: https://neurotechx.slack.com/archives/C08PVFWH4/p1755100802182479.

[thenoobmlengineer]

Im trying to connect the muse S athena using the muselsl. But its not working. Im wondering if muselsl is compatible with the muse S athena. If its not compatible with muse S athena. Can anyone tell me how I can make it work? Or @kowalej can you make the updated version of muselsl so it can work.

[BrianMohseni]

Anyone have more info on the Athena? I have at least one BlueMuse user asking to support the device, but I don't have access to the hardware. I've tried to get some more info, here's the thread: kowalej/BlueMuse#73. I could probably help make adjustments if needed to Muse-LSL as well.

Here's the screenshot the user sent with the GATT characteristics, I'm seeing the same data service as always, but with way less than expected channels showing up.

<img width="3840" height="2032" alt="Image" src="https://github.com/user-attachments/assets/810560d6-85da-496e-9dbe-466e455ec847" /

update: Muse S Athena is now supported by the 'brainflow' module. it has not yet received support in MuseLSL.

[thenoobmlengineer]

Im trying to connect muse S athena using brainflow now, and Im getting errors.

[thenoobmlengineer]

Hi, is muselsl getting any updates to support Muse S athena? Im trying to stream EEG data from muse S athena but its not working. Can anyone kindly guide me how I can stream EEG signals from muse S athena. It will be a great help.

[kowalej]

@thenoobmlengineer - it's not supported right now, the Bluetooth data format is different, but work is being done to decode it. The author or Brainflow will be supporting it there, and I will probably try supporting it with BlueMuse. I'm not sure about muse-lsl. First step is figuring out the new data format though from the device, which is being worked on by a few NeurotechX community members.