sunsynk 0.0.4

Library to interface Sunsynk Hybrid Inverters

Sunsynk Inverters

This repo enables access to Sunsynk Hybrid Inverter through a Python 3 library. It also provides an Add-On that can be installed in the Home Assistant OS.

See https://www.sunsynk.org/ for more information on Sunsynk inverters.

This code was developed on a Sunsynk 5.5 kWh

DISCLAIMER: Use at your own risk! Especially when writing any settings.

Sunsynk Python Library

The Python library is available through pip:

pip install sunsynk

Home Assistant Sunsynk Add-On

For the Add-On you require Home Assistant OS and a RS-485 adaptor to connect to your Sunsynk inverter. Sensors are read using the Modbus protocol and sent to a MQTT server. Below an example of the HomeAssistant Energy management dashboard using sensors from the Sunsynk.

Add-On Installation

1. Add the repository to your Supervisor
   https://github.com/kellerza/sunsynk
   
   
2. Install the Sunsynk Add-On from the Add-On Store and configure through the UI

Tested Inverters

There are several inverters that are rebranded Deye inverters, so you might have success with other inverter brands as well, please add your inverter by editing tis file and creating a Pull Request if you have success

Inverter Model	Battery	Version	User
Sunsynk 5.5kW	Hubble AM-2	beta/all	@kellerza

Hardware

I used a RS485 adaptor sourced from Banggood, very similar to this

Mine is wired to the Sunsynk BMS 485 port (top left). I also have a RS485 port (bottom right) but this did not work.

The wiring and Ethernet color code to an RJ-45 plug crimped according to TI-568A. RJ45 requires a twisted pair, but you can use either TI-568A or TI-568B

RJ45 Pin	RS485 adaptor	Color (568A)
1	B/D-	Green-White
2	A/D+	Green

Credits

Information in the Power forum was especially helpful to get this up and running, see this thread

Special Kudos to Bloubul7, @jacauc and Sc00bs

The original Node-RED flows can be found on @jacauc's repo here