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@enlavin
enlavin / main.py
Last active August 19, 2022 06:23
KMK circuitpython macropad firmware
import board
#from kmk.kmk_keyboard import KMKKeyboard
#from kmk.matrix import DiodeOrientation
#from kmk.keys import KC
# Updated to be compatible with the latest KMK release (which requires CircuitPython >= 7.0)
from kmk.kmk_keyboard import KMKKeyboard
from kmk.keys import KC
from kmk.scanners import DiodeOrientation
@Paraphraser
Paraphraser / MQTT_Node-Red_Influx.md
Last active October 6, 2024 16:07
Efficient recipe for getting MQTT data into an InfluxDB database using Node-Red

Recipe: from MQTT to InfluxDB via Node-RED

  • 2024-05-16 adds case study explaining how to extract values from topic strings, and how to specify the measurement name in the message payload provided to the "influxdb out" node.
  • 2023-12-02 revise graphics to correspond with "influxdb out" node, and explain the pros and cons of InfluxDB 1.8 vs InfluxDB 2.

Introduction

Getting data produced by IoT sensors into a database is practically a mandatory step before effective visualisation (eg dashboards).

This recipe shows you how to get an MQTT payload into an InfluxDB database using three Node-RED nodes. It makes the following assumptions: