I built a quick Wattbox integration for SnapAV brand Binary brand Wattbox IP-controlled power outlets. It’s polling to update status, and allows turning outlets on/off. The github module for the custom component is:
and it depends on my pywattbox module (called pysnapavwattbox on pypi) at:
https://github.com/gjbadros/pywattbox
Hope it helps someone out.