pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "thermostat"
-version = "0.3.0dev2"
+version = "0.2.0"
 description = ""
 authors = ["Dustin C. Hatch <dustin@hatch.name>"]
 

src/thermostat/sensor.py

@@ -1,9 +1,7 @@
 import json
 import logging
 import os
-import select
 import signal
-import threading
 import time
 from contextlib import closing
 from types import FrameType
@@ -22,45 +20,30 @@ PORT = 8883
 USERNAME = os.environ.get("MQTT_USERNAME", "")
 PASSWORD = os.environ.get("MQTT_PASSWORD", "")
 TOPIC = "homeassistant/sensor/thermostat"
-AVAILABILITY_TOPIC = f"{TOPIC}/availability"
 
 I2CPORT = 1
 SENSOR_ADDR = 0x77
 
-DEVICE = {
-    "manufacturer": "Dustin C. Hatch",
-    "name": "RPi Thermostat Display",
-    "model": "RPi Thermostat Display",
-    "identifiers": [
-        os.uname().nodename,
-    ],
-}
 
 SENSOR_CONFIG = {
     "thermostat_temperature": {
         "device_class": "temperature",
         "name": "Thermostat Temperature",
-        "device": DEVICE,
         "state_topic": TOPIC,
-        "availability_topic": AVAILABILITY_TOPIC,
         "unit_of_measurement": "°C",
         "value_template": r"{{ value_json.temperature }}",
     },
     "thermostat_pressure": {
         "device_class": "pressure",
         "name": "Thermostat Pressure",
-        "device": DEVICE,
         "state_topic": TOPIC,
-        "availability_topic": AVAILABILITY_TOPIC,
         "unit_of_measurement": "hPa",
         "value_template": r"{{ value_json.pressure }}",
     },
     "thermostat_humidity": {
         "device_class": "humidity",
         "name": "Thermostat Humidity",
-        "device": DEVICE,
         "state_topic": TOPIC,
-        "availability_topic": AVAILABILITY_TOPIC,
         "unit_of_measurement": "%",
         "value_template": r"{{ value_json.humidity }}",
     },
@@ -69,20 +52,18 @@ SENSOR_CONFIG = {
 
 class Daemon:
     def __init__(self) -> None:
-        self.quitpipe = os.pipe()
-        self._ready = threading.Event()
+        self.running = True
 
     def on_signal(self, signum: int, frame: FrameType) -> None:
         log.debug("Got signal %d at %s", signum, frame)
         log.info("Stopping")
-        os.close(self.quitpipe[1])
+        self.running = False
 
     def run(self):
         signal.signal(signal.SIGINT, self.on_signal)
         signal.signal(signal.SIGTERM, self.on_signal)
 
         client = mqtt.Client()
-        client.will_set(AVAILABILITY_TOPIC, "offline", retain=True)
         client.on_connect = self.on_connect
         client.on_message = self.on_message
         client.on_disconnect = self.on_disconnect
@@ -92,20 +73,15 @@ class Daemon:
         client.loop_start()
         with closing(smbus2.SMBus(I2CPORT)) as bus:
             params = bme280.load_calibration_params(bus, SENSOR_ADDR)
-            self._ready.wait()
-            while 1:
+            while self.running:
                 data = bme280.sample(bus, SENSOR_ADDR, params)
                 values = {
-                    "temperature": adj(data.temperature),
-                    "pressure": adj(data.pressure),
-                    "humidity": adj(data.humidity),
+                    "temperature": int(data.temperature),
+                    "pressure": int(data.pressure),
+                    "humidity": int(data.humidity),
                 }
                 client.publish(TOPIC, json.dumps(values))
-                ready = select.select((self.quitpipe[0],), (), (), 10)[0]
-                if self.quitpipe[0] in ready:
-                    os.close(self.quitpipe[0])
-                    break
-        client.publish(AVAILABILITY_TOPIC, "offline", retain=True)
+                time.sleep(10)
         client.disconnect()
         client.loop_stop()
 
@@ -118,14 +94,9 @@ class Daemon:
     ):
         log.info("Successfully connected to MQTT broker")
         for key, value in SENSOR_CONFIG.items():
-            value["unique_id"] = f"sensor.{key}"
             client.publish(
-                f"homeassistant/sensor/{key}/config",
-                json.dumps(value),
-                retain=True,
+                f"homeassistant/sensor/{key}/config", json.dumps(value)
             )
-        client.publish(AVAILABILITY_TOPIC, "online", retain=True)
-        self._ready.set()
 
     def on_disconnect(self, client, userdata, rc):
         log.error("Lost connection to MQTT broker")
@@ -142,10 +113,6 @@ class Daemon:
         print("Message", client, userdata, msg)
 
 
-def adj(value, p=10):
-    return int(value * p) / p
-
-
 def main():
     logging.basicConfig(level=logging.DEBUG)
     daemon = Daemon()