IKEA IDÅSEN
The IDÅSEN sit/stand desk is monitored and controlled directly over Bluetooth LE, added from Devices & Services > IKEA - no hub, no IP address involved at all.
A desk is added by name and its own Bluetooth MAC address, verified by a real connect-and-read before it's saved. Monitoring covers current height and whether the desk is moving; raise/lower are momentary buttons, one LINAK move command per click, matching the physical remote's own press-and-hold behavior.
IDÅSEN is flagged as unverified against real hardware - the GATT characteristics and byte encodings are confirmed against a reference client's own source, but not smoke-tested against a live desk during development; Bluetooth pairing/bonding requirements in particular are a known open risk.