I found a very interesting air quality sensor board from the Germany company OhmTech on Tindy. One of this magic Bosch Sensortec sensor - the BME680 - is used in conjunction with an STM032F72 microcontroller to give a neat "USB-sensor-stick":

Simple full restore IOT database

According to node-red cookbook all files in the .node-red subdirectory should be backuped - except files in "node-modules" sub-directory:

Simple full backup IOT database

Initial steps to setup Grafana on Raspberry3 Debian Strech

 

2014 CW (Morse Telegraphy) was added to the German Nationwide Inventory of Intangible Cultural Heritage.

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