<https://lophocvui.com/iot-internet-of-things/smart-home/openhab/bai-1-2-cai-dat-mqtt-tren-ubuntu/#Breadcrumb>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://lophocvui.com/iot-internet-of-things/smart-home/openhab/bai-1-2-cai-dat-mqtt-tren-ubuntu/>