# Homey read data from Growatt inverter via WiFi dongle

**URL:** <https://community.homey.app/t/homey-read-data-from-growatt-inverter-via-wifi-dongle/145658>\
**Category:** Energy\
**Created:** [November 21, 2025, 9:55am UTC](https://community.homey.app/t/homey-read-data-from-growatt-inverter-via-wifi-dongle/145658 "2025-11-21T09:55:16Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Peter\_Kawa](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_kawa/32/173848_2.png) [@Peter\_Kawa](https://community.homey.app/u/Peter_Kawa)\
**Post date:** [November 21, 2025, 10:37pm UTC](https://community.homey.app/t/homey-read-data-from-growatt-inverter-via-wifi-dongle/145658/2 "2025-11-21T22:37:58Z")

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Hi Ruud,

When your Growatt inverter doesn’t have modbus onboard, it’s possible to make it work by adding a modbus interface. Here’s how Danee did it:

> [@\[APP\]\[Pro\] SolarEdge + Growatt TCP modbus](https://community.homey.app/t/app-pro-solaredge-growatt-tcp-modbus/45487/1579):
>
> So, took the plunge and ordered the [Waveshare RS485 to PoE Ethernet Module](https://www.tinytronics.nl/en/communication-and-signals/serial/rs-485/waveshare-industrial-serial-server-rs485-to-poe-ethernet-module) and had some time today to hook it up and configure it. I connected both my Growatt 3000TL3-S inverters to the module and after some fiddling on the Inverters (Giving each a unique ID) and in the module’s settings I got it working! Here the settings that work for me: I made the following changes that differ with de module’s default settings: Network Settings Device Port, set it to 502 IP Mode, switched it …

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