Install Ruby and the package manager Ruby Gems by running the following command:
sudo apt install ruby-full build-essential
Check the installation and Ruby version:
ruby -vruby 2.5.5p157 (2019-03-15 revision 67260) [arm-linux-gnueabihf]
This documentation uses qubitro-mqtt as a client library.
Install the latest stable version by running the following command:
gem install qubitro-mqtt
Start connecting devices by following the guide :