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An MQTT client which will send configured MQTT messages to keen IO as events for later analysis.

Project description

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A MQTT client which will send configured MQTT messages to keen IO as events for later analysis.

The problem

IoT data platforms are often a big investment in time and sometimes money, so often a simple MQTT set up is used. This should not prevent one from being able to perform historical analysis of data points.

The solution

keenmqtt is a simple bridge which will listen for specified MQTT messages and log them on your KeenIO project. This complete history of events will allow you to:

  1. Create graphs of old data, such as temperature.
  2. Use this data to refine your system.
  3. Display this data to your users.

keenmqtt can be run as a standalone daemon, or used in a python program.


pip install keenmqtt

Or clone/download the repo, run python install in the root.


Command Line

Running the stand alone package requires a config file, see example/config.yaml for a template.

After installing, run the following to log events:

keenmqtt -c config.yaml

In your program

keenMQTT has been specifically designed so that almost any part of the pipeline can be overriden or customised.

The source is well documented, see readthedocs

Example: Custom payload formats As an example; if you had a sensor which publishes an ascii format sensor reading, you can define a custom payload decoder for topics which match that sensor value as follows:

from keenmqtt import KeenMQTT

class CustomDecoder(KeenMQTT):
    def decode_payload(self, topic, payload):
        """Decode a plain ASCII format sensor reading"""
        if 'humidity' in topic:
            event = {
                "value": int(payload)
            #Assume default JSON encoding
            event = KeenMQTT.decode_payload(self, topic, payload)
        return event


  1. Fork it!
  2. Create your feature branch: git checkout -b my-new-feature
  3. Commit your changes: git commit -am 'Add some feature'
  4. Push to the branch: git push origin my-new-feature
  5. Submit a pull request


0.0.1: Working version of the CLI app.


Written by Ben Howes & Richard Webb of Zoetrope

With thanks to:

  1. KeenIO for a super service.
  2. Eclipse Paho for a great MQTT client.


MIT Licence

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