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41 lines
1.1 KiB
41 lines
1.1 KiB
4 years ago
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import json
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import time
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import paho.mqtt.client as mqtt
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from os import path
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import csv
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import datetime
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id = '<ID>'
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client_telemetry_topic = id + '/telemetry'
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server_command_topic = id + '/commands'
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client_name = id + 'temperature_sensor_server'
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mqtt_client = mqtt.Client(client_name)
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mqtt_client.connect('test.mosquitto.org')
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mqtt_client.loop_start()
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temperature_file_name = 'temperature.csv'
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fieldnames = ['date', 'temperature']
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if not path.exists(temperature_file_name):
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with open(temperature_file_name, mode='w') as csv_file:
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writer = csv.DictWriter(csv_file, fieldnames=fieldnames)
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writer.writeheader()
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def handle_telemetry(client, userdata, message):
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payload = json.loads(message.payload.decode())
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print("Message received:", payload)
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with open(temperature_file_name, mode='a') as temperature_file:
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temperature_writer = csv.DictWriter(temperature_file, fieldnames=fieldnames)
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temperature_writer.writerow({'date' : datetime.date.today(), 'temperature' : payload['temperature']})
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mqtt_client.subscribe(client_telemetry_topic)
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mqtt_client.on_message = handle_telemetry
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while True:
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time.sleep(2)
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