Sensirion BLE
Reads Sensirion's own BLE gadgets - SHT3x/SHT4x temperature+humidity tags and the MyCO2 CO2
gadget - broadcast directly over Bluetooth. Nothing to connect to: a gadget broadcasts
continuously and Athena just listens, decoding the manufacturer-data payload directly (company
ID 0x06D5).
Adding a gadget
No pairing wizard and no reachability check at add time, the same as Ruuvi - there's nothing to dial. Add by name and MAC address; the Add-gadget screen also shows a live "Nearby gadgets" list of MACs currently broadcasting valid Sensirion data that aren't registered yet, so you can just pick one.
What's exposed
Temperature and humidity from every gadget kind; the MyCO2 gadget additionally reports CO2 in ppm. All read-only, like Ruuvi - there's nothing to command, so it works with Dashboard cards and Automation triggers/conditions but has no actions.
Not currently wired into the History page's own multi-entity graphs (a Dashboard Chart card still works for a single entity's own history). This integration is also unverified against real hardware - the payload format is confirmed against the public sensirion-ble reference parser, but no live gadget was available to test against during development.