A web scraping hack to obtain power production values from a Deye solar inverter
Assuming 192.168.1.123 is your Deye inverter, you can obtain data on the command line like this:
deye-mXX-scrape.pl 192.168.1.123
The command line switch -j will give you JSON formatted output.
This assumes that your login credentials on the Deye inverter are: admin, admin. If that is not the case, change the code accordingly.
Use deye2mqtt.sh to feed the data obtained with the Perl hack into your Mosquitto MQTT broker. Make sure to adjust the script to reflect your hostnames/IPs of the inverter and the broker.
Use deye2mqtt2homeassist.sh to announce the data submitted to the MQTT broker using deye2mqtt.sh to Home Assistant.
At least that Deye inverter in my home has a very lousy WLAN connection, so many times it is not reachable at all.
Another thing is that the Deye inverter goes into stand-by mode during the night. Which is of course a good idea in general, but it does not enable you to distinguish between night time and WLAN drop-outs during the day, because both will simply generate a connection time out.