upgrade DHT11/DHT22 backing library (#297)

* upgrade DHT11/DHT22 backing library

Old DHT11/DHT22 backing library Adafruit_DHT is out of maintained and reporting error on my rpi4+python311.
` ImportError: cannot import name 'Raspberry_Pi_2_Driver' from 'Adafruit_DHT'`
And it has CPU usage hogging problem (~25%).

Upgrade DHT11/DHT22 backing library to adafruit-circuitpython-dht

* Suppport sensor bmp085/bmp180

mqtt_io/modules/sensor/bmp085.py

@@ -0,0 +1,51 @@
+"""
+BMP085 temperature and pressure sensor
+"""
+
+from typing import cast
+
+from ...types import CerberusSchemaType, ConfigType, SensorValueType
+from . import GenericSensor
+
+REQUIREMENTS = ("Adafruit_BMP",)
+CONFIG_SCHEMA: CerberusSchemaType = {
+    "chip_addr": dict(type="integer", required=True, empty=False),
+}
+DATA_READER = {
+        "temperature": lambda bmp: bmp.read_temperature(),
+        "pressure": lambda bmp: bmp.read_pressure(),
+        "altitude": lambda bmp: bmp.read_altitude(),
+}
+
+
+class Sensor(GenericSensor):
+    """
+    Implementation of Sensor class for the BME280 sensor.
+    """
+
+    SENSOR_SCHEMA: CerberusSchemaType = {
+        "type": dict(
+            type="string",
+            required=False,
+            empty=False,
+            default="temperature",
+            allowed=["temperature", "pressure", "altitude"],
+        )
+    }
+
+    def setup_module(self) -> None:
+        # pylint: disable=import-outside-toplevel,attribute-defined-outside-init
+        # pylint: disable=import-error,no-member
+        from Adafruit_BMP.BMP085 import BMP085
+
+        self.address: int = self.config["chip_addr"]
+        self.bmp = BMP085(address=self.address)
+
+    def get_value(self, sens_conf: ConfigType) -> SensorValueType:
+        """
+        Get the temperature, humidity or pressure value from the sensor
+        """
+        sens_type = sens_conf["type"]
+        data = DATA_READER[sens_type](self.bmp)
+        return cast(float, data)
+

mqtt_io/modules/sensor/dht22.py

@@ -6,7 +6,7 @@
 from ...types import CerberusSchemaType, ConfigType, PinType, SensorValueType
 from . import GenericSensor
 
-REQUIREMENTS = ("Adafruit_DHT",)
+REQUIREMENTS = ("adafruit-circuitpython-dht",)
 ALLOWED_TYPES = ["dht11", "dht22", "am2302"]
 CONFIG_SCHEMA: CerberusSchemaType = {
     "pin": dict(type="integer", required=True, empty=False),
@@ -36,30 +36,30 @@ class Sensor(GenericSensor):
 
     def setup_module(self) -> None:
         # pylint: disable=import-outside-toplevel,import-error
-        import Adafruit_DHT as DHTsensor  # type: ignore
+        import adafruit_dht  # type: ignore
+        from microcontroller import Pin
 
         sensor_type: str = self.config["type"].lower()
 
-        self.sensor_type: int
         if sensor_type == "dht22":
-            self.sensor_type = DHTsensor.DHT22
+            self.sensor = adafruit_dht.DHT22
         elif sensor_type == "dht11":
-            self.sensor_type = DHTsensor.DHT11
+            self.sensor = adafruit_dht.DHT11
         elif sensor_type == "am2302":
-            self.sensor_type = DHTsensor.AM2302
+            self.sensor = adafruit_dht.DHT21
         else:
-            raise RuntimeConfigError("Supported sensor types: DHT22, DHT11, AM2302")
+            raise RuntimeConfigError("Supported sensor types: DHT22, DHT11 and AM2302/DHT21")
 
-        self.pin: PinType = self.config["pin"]
-        self.sensor = DHTsensor
+        self.pin: PinType = Pin(self.config["pin"])
 
     def get_value(self, sens_conf: ConfigType) -> SensorValueType:
         """
         Get the temperature or humidity value from the sensor
         """
         humidity: SensorValueType
         temperature: SensorValueType
-        humidity, temperature = self.sensor.read_retry(self.sensor_type, self.pin)
+        dht_device = self.sensor(self.pin, use_pulseio=False)
+        humidity, temperature = dht_device.humidity, dht_device.temperature
         if sens_conf["type"] == "temperature":
             return temperature
         if sens_conf["type"] == "humidity":