Add support for Xiaomi "Smart Magic Cube"

[alastaira]

Hi, I've recently acquired a bluetooth cube described as a Xiaomi Smart Magic Cube. Product link is https://uk.banggood.com/Newest-Version-XIAOMI-Original-Bluetooth-Magic-Cube-Smart-Gateway-Linkage-3x3x3-Square-Magnetic-Cube-Puzzle-Science-Education-Toy-Gift-p-1586342.html - it seems to be a more recent version of the Giiker.

It works with an Android app called "Mi Smart Magic Cube" which can be downloaded from the manufacturer at http://app.xiaomi.com/download/918392 however, unfortunately it doesn't seem to be recognised by cubing (or "Supercube" or other third party apps) - I guess because the properties/protocol of the BLE service differ from other cubes.

I'd love to use the cubing API with it - in the absence of any documentation, I'm wondering how I can help add support for this type of cube?

[lgarron]

This cube actually uses the same protocol as the GiiKER cube, but unfortunately it doesn't advertise a device name.

The following should work:

• Don't turn the cube.
• Go to https://bluetooth.cubing.net/
• Click "Connect" two times and reject both times.
• Click "Connect a third time". This should now show all devices around you (a352ae484256b3b590f4cf01bce4bcac5c0a7244).
• Wait for the list to slow down growth.
• Do a turn on the cube.

This should allow you to identify the cube and connect.

Unfortunately, I don't know how to support anything more convenient, as Xiaomi seems to have made it hard to filter for this device in the prompt. :-/

[alastaira]

Ah, that's brilliant - thankyou so much! I was fooled by the fact it doesn't seem to advertise either a device name or the services available, so my scanner was failing to find it. But you're absolutely correct - if you manually force a connection to the correct MAC address it works great. :)