My SMA Sunnyboy inverter 4kW is no longer reporting usage - the Bluetooth seems to have stopped working (blue light not on, even after numerous shutdowns and restarts).
I have Efergy monitoring for the consumption data, and I have 2 solar systems, the SMA and a Growatt. The Growatt is reporting generation via Wifi, but how can I (cheaply) add monitoring for the SMA’s generation?
Current method of getting generation data was to use a Raspberry Pi and SBFSpot to connect via bluetooth and download the data, which is then uploaded to PVOutput.