Most smart plugs need a certain amount of power before they show currents, i’ve seen that with the fibaro in the past, but more then 5W should be plenty. Also sometimes it helps if you “start over” clear the memory of the smartplug and delete it from homey, then reconnect, then use a more high powered source (like a lamp) till it shows the information (could take 1-2 minutes, depending on your settings) and then hook up the lower powered device. Sounds stupid, but that solved some of my issues with Neo Coolcam and Fibaro plugs.
