Thermostat (0x0201) — 50+ Attributes
The richest cluster in the ZCL. Temperature — local, outdoor, occupancy. Setpoints — occupied/unoccupied heating and cooling with min/max limits. Control — system mode, running state, PI demand. Scheduling — weekly transitions, setpoint hold, setback.
Plus AC-specific attributes: compressor type, refrigerant, louver position, coil temperature, and error codes.