macOS 10.14 returns empty list after discovery about bleak HOT 2 OPEN

scanner = BleakScanner(service_uuids=[SERVICE_UUID])

Hmm... I suppose the behavior could have changed in the CoreBluetooth implementations between macOS versions. I doubt I have a version of macOS that old for testing though.

As a workaround, you can move the service UUID check elsewhere.

# Wait for 5 seconds to find the device

Tip: Using BleakScanner.find_device_by_name() would save you from always having to wait 5 seconds and would save you a lot of lines of code.

async with BleakClient(compass.address) as client:

Tip: just pass compass instead of compass.address, otherwise it has to scan again.

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Initially had a script without specifying service_uuids, but that failed as well.

Oh, didn't see that part. Not sure what could be going on in that case then. You could try logging Bluetooth packets as described in the troubleshooting page of the docs.

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