Ruuvitag to MQTT as JSON

tag_to_mqtt.py

# Installation
# sudo apt-get install libglib2.0-dev
# sudo pip install git+https://github.com/kipe/ruuvitag.git
# sudo pip install paho-mqtt
#
# Run with: sudo python3 tag_to_mqtt.py
#
# Run this script in a while loop or from cron

from ruuvitag import RuuviTag
from paho.mqtt.publish import single
import json

def scan():
    # Scan for 30 seconds and report tags
    for tag in RuuviTag.scan(timeout=30):
        data = tag.as_dict()
        # Last seen is a python datetime, skip it since it won't go in to MQTT
        data.pop('last_seen')
        # send MQTT message to topic ruuvitag with payload as the sensor data in JSON
        single('ruuvitag', payload=json.dumps(data), hostname='mqtt.server.address')

if __name__ == "__main__":
    print("Scanning...")
    try:
        scan()
    except KeyboardInterrupt:
        print("Stopped by keyboard interrupt")