Report tempest solar charging status on udp api

Hi there,

I was playing around with the udp data from the tempest and i thought it would be interesting to have a boolean indicator in the device status data that showed the charger status. I guess it’s just charging/ not charging, i there are other situations that the device is capable of reporting, a text or number value will be fine, of course.

I guess i could extrapolate that by voltage levels and solar radiation, but that won’t expose situations (if any) where the device may not charge when there’s enough sun. For example, dirty solar panels (i get mud rains pretty often at my place) or some “obstacle” like a plastic bag covering the solar panels but not the light sensors.