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Add heater standby binary sensor for iaqua systems#113

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seanonymous wants to merge 3 commits intoflz:masterfrom
seanonymous:feature/merrigan/safety_delay
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Add heater standby binary sensor for iaqua systems#113
seanonymous wants to merge 3 commits intoflz:masterfrom
seanonymous:feature/merrigan/safety_delay

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@seanonymous
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Add a new read-only binary sensor device for each heater that indicates standby status. The sensor is named {heater_name}_standby (e.g., spa_heater_standby) and reports True when the heater state is "3" (standby mode).

Example use case:
User turns on Spa Heater in UI. UI shows heater is on. User goes outside and sees heater is not on. User is confused.
Because Spa Mode is not on and the pool pump is not running, the spa heater is on but it is in standby. User checks UI again, sees 'Spa Heater Standby' is on. User is no longer confused. User turns on pump and the heater fires up and warms the spa.

Changes:

  • Add IaquaHeaterStandbySensor class that extends IaquaBinarySensor

  • Sensor state is computed dynamically by checking the associated heater device state

  • Automatically create standby sensors for all heaters in _parse_home_response

  • Sensors are automatically included in system.get_devices() results

This allows detection of heater standby state separately from the on/off state, providing more granular status information for integrations like Home Assistant.

Add a new read-only binary sensor device for each heater that indicates standby status. The sensor is named {heater_name}_standby (e.g., spa_heater_standby) and reports True when the heater state is "3" (standby mode).

Changes:

- Add IaquaHeaterStandbySensor class that extends IaquaBinarySensor

- Sensor state is computed dynamically by checking the associated heater device state

- Automatically create standby sensors for all heaters in _parse_home_response

- Sensors are automatically included in system.get_devices() results

This allows detection of heater standby state separately from the on/off state, providing more granular status information for integrations like Home Assistant.
@seanonymous
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Hi @flz !
I've tested this with my iAquaLink account and a fresh instance of HA in a dev container. Let me know if there's anything I can do to move this along.

@flz
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flz commented Jan 6, 2026

Hey, thanks for the submission! I believe this should already be covered as part of the climate entity support in homeassistant?

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