Question about PythonProtocol...

[RiFF4711]

Sorry for the beginner question, but I'm relatively new to Home Assistant. I have a solar setup on my RV, consisting of an EG4 6000XP with 3 EG4-LL 48v batteries. I would like a way to see in HA what my inverter is seeing/doing, as well as battery voltage. I don't need granular data about the batteries, just either SOC or voltage for the battery bank. I see that Solar Assistant with this unit handles everything wirelessly.

Because this is in an RV with no generator and is often away from grid hookups, I try to not have things running when not necessary. The idea of having 2 RaspPi's running (1 HA, 1 SA) just to get these values seems like overkill.

Ultimately, I'd just like HA to be able to check battery state (and potentially PV input), so that I can make routines to shut off Air Conditioners and other devices should battery get low during the night. Is there a way with Python Protocol (or any other way) to get that information from my EG4 6000XP directly into HA?

As I'm still learning, I'm fairly certain that if I have to wire to the inverter, then that changes a variety of settings for charging etc as the battery and inverter can't communicate in a closed loop. Is that correct? Any assistance anyone can provide is appreciated.

[HotNoob]

you can install PythonProtocolGateway on the same machine as homeassistant. that'll get you down to one device. RaspberryPi is a bit weak for HA, but could be good enough. a used usff is a good alternative.

currently PythonProtocolGateway interfaces with homeassistant only via MQTT. You can access that data from other devices as well via mqtt; ie, esp32 + relay to control your A/C or so. * i wonder if usb relays are a thing :P *

the batteries and inverter communicate on different ports, so it shouldn't be effected.
with a minimal setup your inverter would forward the SOC info from your batteries.

start with v1.1.8, it'll be released soon; just going through some stability tests.

[RiFF4711]

Thank you for the response, and for making this useful tool. I've got 1.1.8 installed, but my question is whether there's a way to populate the information from the 6000XP wirelessly into HA, rather than having to connect a cable from the Pi to the Inverter. I've noted that the Solar Assistant instructions indicate that it is all populated via the Wifi adapter. Is this possible with HA with PythonProtocol as well? Thank you again.

[HotNoob]

the wifi adapter might have modbus tcp enabled on port 502.

transport = modbus_tcp
host = {ip of wifi adapter}
port = 502

would work for config. the wifi adapter might need a firmware update for it to work.

i'm only basising this off of the growatt wifi adapters. not sure if it works with the eg4 ones.

---

i see people recommend this one: https://github.com/celsworth/lxp-bridge/tree/master
for interfacing on port 8000 of the wifi dongles.