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#!/usr/bin/env python3
import paho.mqtt.client as mqtt
import logging
import time
import json
from home.util import parse_addr, MySimpleSocketClient
from home.mqtt import MQTTBase, poll_tick
from home.mqtt.message import Temperature
from home.config import config
logger = logging.getLogger(__name__)
class MQTTClient(MQTTBase):
def on_connect(self, client: mqtt.Client, userdata, flags, rc):
super().on_connect(client, userdata, flags, rc)
def poll(self):
freq = int(config['mqtt']['sensors']['poll_freq'])
logger.debug(f'freq={freq}')
g = poll_tick(freq)
while True:
time.sleep(next(g))
for k, v in config['mqtt']['sensors']['si7021'].items():
host, port = parse_addr(v['addr'])
self.publish_si7021(host, port, k)
def publish_si7021(self, host: str, port: int, name: str):
logging.debug(f"publish_si7021/{name}: {host}:{port}")
try:
now = time.time()
socket = MySimpleSocketClient(host, port)
socket.write('read')
response = json.loads(socket.read().strip())
temp = response['temp']
humidity = response['humidity']
logging.debug(f'publish_si7021/{name}: temp={temp} humidity={humidity}')
packer = Temperature()
self.client.publish(f'home/{self.home_id}/si7021/{name}',
payload=packer.pack(round(now), temp, humidity),
qos=1)
except Exception as e:
logger.exception(e)
if __name__ == '__main__':
config.load('sensors_mqtt_sender')
client = MQTTClient()
client.configure_tls()
client.connect_and_loop(loop_forever=False)
client.poll()
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