Ultimaker 3 data collector for Telegraf

Add a collector for Ultimaker 3 in order to gather data into Grafana stack.

This works with only one Ultimaker 3 (or S5, I guess it's the same API). I only have one currently so...

Code could be easily improved in order to manage several Ultimaker printers.

Prerequisites

• Python 3.6+ with requests 2.22.0 library
• Working Telegraf v1.7 + InfluxDB v1.7 + Grafana v5.4 stack

Well I coded that script on these versions, maybe it would work on earlier versions.

Please test first if the whole stack is working.

Installation

• Create a database on InfluxDB named ultimaker3 (or whatever you want but in this case, you will have to change the source database if you want to use the provided Grafana dashboard)

• Put collect_um3_states.py where Telegraf could run it (more likely on Telegraf's server)

• Add collector to inputs.exec in telegraf.conf

  [[inputs.exec]]
  
    ## Commands array
  
    commands = [
  
      "python3 <PATH_TO_SCRIPT_LOCATION>/collect_um3_states.py"
    
    ]
  

• Import the provided dashboard um3_grafana_dashboard.json into Grafana.

• Enjoy your new dashboard