Add binary sensor platform to Nibe Heatpump (#78927)

* Add binary_sensor platform

* Enable binary_sensor platform

* Add binary_sensor to coveragerc

* Apply suggestions from code review

Co-authored-by: Martin Hjelmare <marhje52@gmail.com>

Co-authored-by: Martin Hjelmare <marhje52@gmail.com>

.coveragerc

@@ -835,6 +835,7 @@ omit =
     homeassistant/components/nfandroidtv/notify.py
     homeassistant/components/nibe_heatpump/__init__.py
     homeassistant/components/nibe_heatpump/sensor.py
+    homeassistant/components/nibe_heatpump/binary_sensor.py
     homeassistant/components/niko_home_control/light.py
     homeassistant/components/nilu/air_quality.py
     homeassistant/components/nissan_leaf/*

homeassistant/components/nibe_heatpump/__init__.py

@@ -39,7 +39,7 @@ from .const import (
     LOGGER,
 )
 
-PLATFORMS: list[Platform] = [Platform.SENSOR]
+PLATFORMS: list[Platform] = [Platform.BINARY_SENSOR, Platform.SENSOR]
 COIL_READ_RETRIES = 5
 
 

homeassistant/components/nibe_heatpump/binary_sensor.py

@@ -0,0 +1,41 @@
+"""The Nibe Heat Pump binary sensors."""
+from __future__ import annotations
+
+from nibe.coil import Coil
+
+from homeassistant.components.binary_sensor import ENTITY_ID_FORMAT, BinarySensorEntity
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.entity import EntityCategory
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
+
+from . import DOMAIN, CoilEntity, Coordinator
+
+
+async def async_setup_entry(
+    hass: HomeAssistant,
+    config_entry: ConfigEntry,
+    async_add_entities: AddEntitiesCallback,
+) -> None:
+    """Set up platform."""
+
+    coordinator: Coordinator = hass.data[DOMAIN][config_entry.entry_id]
+
+    async_add_entities(
+        BinarySensor(coordinator, coil)
+        for coil in coordinator.coils
+        if not coil.is_writable and coil.is_boolean
+    )
+
+
+class BinarySensor(CoilEntity, BinarySensorEntity):
+    """Binary sensor entity."""
+
+    _attr_entity_category = EntityCategory.DIAGNOSTIC
+
+    def __init__(self, coordinator: Coordinator, coil: Coil) -> None:
+        """Initialize entity."""
+        super().__init__(coordinator, coil, ENTITY_ID_FORMAT)
+
+    def _async_read_coil(self, coil: Coil) -> None:
+        self._attr_is_on = coil.value == "ON"