Get Full Control of Your Deye Inverter in Home Assistant!

Get full Modbus access to your Deye inverter in Home Assistant using an Elfin EW11A RS485-to-WiFi adapter!
In this tutorial, I’ll walk you step-by-step through wiring, configuring the Elfin, setting up the Sunsynk/Deye integration, and getting all inverter stats and controls directly inside Home Assistant.
If you’ve used the Solarman integration before, you know it only provides basic stats. With Modbus RTU, you unlock full access: grid charge control, load limits, charging schedules, export enable/disable, and much more.
This video is perfect if you already have an Elfin EW11A lying around — or if you want an easy, reliable, WiFi-based Modbus connection to your Deye inverter.
🔧 What You’ll Learn
• How to wire the RS485 Modbus connection using an RJ45 cable
• How to configure the Elfin EW11A WiFi settings
• Correct Modbus serial configuration for Deye inverters
• How to set up TCP Server mode on the Elfin
• How to install and configure the Sunsynk / Deye Home Assistant add-on
• How to verify data flow and troubleshoot wiring issues
• How to get full inverter control through Modbus

Link to the Sunsynk/Deye add-on: https://kellerza.github.io/sunsynk/gu...
Link to the Solarman integration: https://github.com/StephanJoubert/hom...
Buy the Elfin EW11A on Aliexpress: https://s.click.aliexpress.com/e/_Exy...

________________________________________