Agreed, for a single element one there&#x27;s a project on hackaday : <a href="https:&#x2F;&#x2F;hackaday.io&#x2F;project&#x2F;9281-murgen" rel="nofollow">https:&#x2F;&#x2F;hackaday.io&#x2F;project&#x2F;9281-murgen</a> =)<p>160$ cost for a single electronic board, not cheap, not so expensive..