Add Firmata Integration (attempt 2) (#35591)

homeassistant/components/firmata/binary_sensor.py

@@ -0,0 +1,59 @@
+"""Support for Firmata binary sensor input."""
+
+import logging
+
+from homeassistant.components.binary_sensor import BinarySensorEntity
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.const import CONF_NAME
+from homeassistant.core import HomeAssistant
+
+from .const import CONF_NEGATE_STATE, CONF_PIN, CONF_PIN_MODE, DOMAIN
+from .entity import FirmataPinEntity
+from .pin import FirmataBinaryDigitalInput, FirmataPinUsedException
+
+_LOGGER = logging.getLogger(__name__)
+
+
+async def async_setup_entry(
+    hass: HomeAssistant, config_entry: ConfigEntry, async_add_entities
+) -> None:
+    """Set up the Firmata binary sensors."""
+    new_entities = []
+
+    board = hass.data[DOMAIN][config_entry.entry_id]
+    for binary_sensor in board.binary_sensors:
+        pin = binary_sensor[CONF_PIN]
+        pin_mode = binary_sensor[CONF_PIN_MODE]
+        negate = binary_sensor[CONF_NEGATE_STATE]
+        api = FirmataBinaryDigitalInput(board, pin, pin_mode, negate)
+        try:
+            api.setup()
+        except FirmataPinUsedException:
+            _LOGGER.error(
+                "Could not setup binary sensor on pin %s since pin already in use.",
+                binary_sensor[CONF_PIN],
+            )
+            continue
+        name = binary_sensor[CONF_NAME]
+        binary_sensor_entity = FirmataBinarySensor(api, config_entry, name, pin)
+        new_entities.append(binary_sensor_entity)
+
+    if new_entities:
+        async_add_entities(new_entities)
+
+
+class FirmataBinarySensor(FirmataPinEntity, BinarySensorEntity):
+    """Representation of a binary sensor on a Firmata board."""
+
+    async def async_added_to_hass(self) -> None:
+        """Set up a binary sensor."""
+        await self._api.start_pin(self.async_write_ha_state)
+
+    async def async_will_remove_from_hass(self) -> None:
+        """Stop reporting a binary sensor."""
+        await self._api.stop_pin()
+
+    @property
+    def is_on(self) -> bool:
+        """Return true if binary sensor is on."""
+        return self._api.is_on