Muse 2 Disconnects after a period of time

[Colton127]

I'm running Windows 11 and using the Bluetooth adapter onboard the Realtek RTL8852AE chipset with the Bleak backend. My Muse 2 connects properly and streams fine, but randomly disconnects after roughly 10 minutes (it appears a bit random.) I have tried ensuring the Muse is fully charged.

This is really interfering with my ability to collect data, as the random disconnects interrupts any experiment entirely.

I enable logging within Bleak using
set BLEAK_LOGGING=1

Upon disconnection, a simple notification occurs "Disconnecting from BLE device".

Any advice/suggestions would be most appreciated.

Thank you.

[narodnik]

It's because of your IdleTimeout operating system bluetooth setting or similar. Here's a simple patch to fix the issue:

diff --git a/muselsl/record.py b/muselsl/record.py
index 30a41cb..d5fff8a 100644
--- a/muselsl/record.py
+++ b/muselsl/record.py
@@ -218,9 +218,14 @@ def record_direct(duration,
     t_init = time()
     print('Start recording at time t=%.3f' % t_init)
 
+    last_update = t_init
     while (time() - t_init) < duration:
         try:
             backends.sleep(1)
+
+            if time() - last_update > 60:
+                last_update = time()
+                muse.keep_alive()
         except KeyboardInterrupt:
             break
 

Alternatively just disable your bluetooth idle timeout setting completely. On Linux you may need UserspaceHID=true as well.

Check pull request #212