ADR-0026: The climate popup follows the device — its settings pushed by Home Assistant, the screen's commands translated by the blueprint

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Status: Accepted (2026-09-29; not yet tried on the author's tablet) Date: 2026-09-29

Context

The climate popup was built for the author's Daikin Onecta, in °C: target bounded to 16-30 in the firmware, steps of 0.5, title « Climatisation Salon », and buttons named after that unit's modes — Éco is its preset away, Silence its fan mode quiet, Oscillation swing / stop, Brise windnice. The blueprint passed each value to Home Assistant as is. With another unit: a button the device does not know raises an HA error, a heat-only unit could not take a target while off (the blueprint forced hvac_mode: cool), a °F home saw 72 clamped to 30. And a toggle compared with one name only: a unit whose fan mode is low (or swing on, preset eco) got « quiet » at each tap and never left silence.

Decision

• The blueprint pushes the unit's settings with the existing action tab5_maj_emplacements, new key climr (numbers with a decimal point; | → / and ; → , in the name):

climr|<min>|<max>|<step>|<unit>|<capabilities>|<name>

min/max = min_temp/max_temp (16/30 without them); step = target_temp_step, else 1 in °F, 0.5 in °C; unit = °C or °F: the temperature_unit of a weather.* entity (it follows HA's unit system, as the climate attributes do), else min_temp ≥ 40 means °F; name = friendly_name. Sent just before tab5_maj_clim on (re)connection, automation reload, « MAJ Écran » and HA start, and when the climate changes one of min_temp, max_temp, target_temp_step, *_modes, friendly_name (or appears, or comes back from unavailable) — not at each degree of the room. - Capabilities — one letter per screen button the unit can do (tests/test_clim.py compares this table, the blueprint and the firmware):

Letter	Button	Present when
c	Froid	cool in hvac_modes
h	Chaud	heat in hvac_modes
d	Sec	dry in hvac_modes
f	Ventilation	fan_only in hvac_modes
e	Éco	eco or away in preset_modes
b	Boost	boost in preset_modes
q	Silence	quiet, silence, Silence or low in fan_modes
s	Oscillation	one of swing, on, both, vertical, 3d, horizontal and one of stop, off in swing_modes
w	Brise	windnice in swing_modes

• The firmware adapts (tab5_clim.cpp, no NVS): arc range floor(min)..ceil(max) then the target again, ± buttons by step within the bounds, target shown %.1f for a fractional step and %.0f otherwise, unit under the target and after the room temperature, the name as popup title (cut with « … »; « Climatisation », translated, without a name), missing buttons hidden (« Éteint » always stays), and the OPTIONS sections re-stacked: a section without a visible button disappears with its title, the others move up.
• The screen keeps speaking « Daikin », the blueprint translates to the first equivalent the unit knows, or sends nothing:

Screen sends	Blueprint sends
target	bounded to min_temp/max_temp; if the unit is off, hvac_mode = first of cool, heat, heat_cool, auto it has (none: no hvac_mode)
mode X	X only if in hvac_modes
preset away / none / boost	eco, else away / none, else home, else comfort / boost — only if in preset_modes
fan quiet / auto	first of quiet, silence, Silence, low / auto, else medium, mid, middle, high, else the first mode that is not a silence
swing stop / swing / windnice	first of stop, off / first of swing, on, both, vertical, 3d, horizontal / windnice if present

• Toggles test the active state under all these names (clim_eco_actif, clim_silence_actif, clim_oscillation_actif), the same functions as the icon colouring: active → none / auto / stop, else away / quiet / swing.

Compatibility

• New blueprint, older firmware (3.0 to 3.2): climr is an unknown key, ignored by emplacements_appliquer(); the commands are translated all the same (an older firmware sends the same values).
• New firmware, older blueprint: no climr, nothing changes: 16-30, 0.5, °C, every button, the YAML title; the old blueprint passes the values as before.
• The author's Daikin (attributes read in HA on 2026-09-29: hvac_modes off, fan_only, heat, cool, heat_cool, dry; preset_modes away, boost, none; fan_modes auto, quiet, 1-5; swing_modes stop, swing, windnice; 18-32, step 0.5) receives exactly the commands it received (tests/test_clim.py). What it sees change: arc 18-32 instead of 16-30, and its friendly_name as title.

Consequences

• Modes without a button stay out of reach from the screen (heat_cool, auto, fan speeds, sleep…); a unit in heat_cool or auto lights no mode button (it used to light « Éteint »).
• The OPTIONS card keeps its glass and its « OPTIONS » title when the unit has none of the five options.
• climr travels with the slots, not in a new action: no firmware-version check in the blueprint (ADR-0023's sw_version gate is for missing actions, not keys).