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app.py
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app.py
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from flask import Flask, render_template, send_file
import pytz
import tzlocal
from w1thermsensor import W1ThermSensor
import adafruit_dht
import board
import json
import datetime
import time
import threading
with open('configs.json') as file:
configs = json.load(file)
app = Flask(__name__)
temperature = None
temperature_loaded = None
humidity = None
humidity_loaded = None
def measure_temperature():
global temperature, temperature_loaded
sensor_loaded = False
sensor = None
while not sensor_loaded:
try:
sensor = W1ThermSensor()
except Exception:
time.sleep(1)
else:
sensor_loaded = True
while True:
try:
temperature = sensor.get_temperature()
temperature_loaded = datetime.datetime.now()
except Exception:
if temperature_loaded is not None and \
(datetime.datetime.now() - temperature_loaded).seconds > 60:
temperature = None
temperature_loaded = None
time.sleep(1)
def measure_humidity():
global humidity, humidity_loaded
sensor_loaded = False
sensor = None
while not sensor_loaded:
try:
sensor = adafruit_dht.DHT11(board.D17)
except Exception:
time.sleep(1)
else:
sensor_loaded = True
while True:
try:
humidity = sensor.humidity
humidity_loaded = datetime.datetime.now()
except Exception:
if humidity_loaded is not None and \
(datetime.datetime.now() - humidity_loaded).seconds > 60:
humidity = None
humidity_loaded = None
time.sleep(1)
@app.before_first_request
def start_thread():
temperature_measure_thread = threading.Thread(target=measure_temperature)
humidity_measure_thread = threading.Thread(target=measure_humidity)
temperature_measure_thread.start()
humidity_measure_thread.start()
@app.route('/favicon.ico')
def favicon():
return send_file('static/img/icon_x128.ico')
@app.route('/manifest.json')
def manifest():
return send_file('static/manifest.json')
@app.route('/manifest_pl.json')
def manifest_pl():
return send_file('static/manifest_pl.json')
@app.route('/')
def index():
return render_template('index.html')
@app.route('/api/temperature')
def get_temperature():
global temperature, temperature_loaded
if temperature is not None:
tz_name = str(tzlocal.get_localzone())
tz = pytz.timezone(tz_name)
dt = tz.localize(temperature_loaded)
iso = dt.isoformat()
return {
"status": "ok",
"date": iso,
"temperature": temperature
}
else:
return {
"status": "error",
"date": None,
"temperature": None
}
@app.route('/api/humidity')
def get_humidity():
global humidity, humidity_loaded
if humidity is not None:
tz_name = str(tzlocal.get_localzone())
tz = pytz.timezone(tz_name)
dt = tz.localize(humidity_loaded)
iso = dt.isoformat()
return {
"status": "ok",
"date": iso,
"humidity": humidity
}
else:
return {
"status": "error",
"date": None,
"humidity": None
}
if __name__ == '__main__':
debug = configs['debug'] if 'debug' in configs.keys() else None
host = configs['host'] if 'host' in configs.keys() else None
port = configs['port'] if 'port' in configs.keys() else None
app.run(debug=debug, host=host, port=port)