20 - Build a Waveshare Modbus Interface - Home Assistant Tutorial - Solax Solis Growatt Sofar

Hello, today with the help of your video I managed to integrate Solax in H.A. with Waveshare Modbus. I personally thank you very much. A good day.

Today i have finished my little project following your video step by step. It worked without any issues. Thank you very much!

Excellent tutorial. Looking forward to building my own now. Many thanks once again Janik!

Thanks for this, I ordered a waveshare yesterday morning so the timing of this video is perfect!

Perfect explanation JW, worked like a charm for my growatt SPH-BHUP.

Brilliant video - thank you

I'm going to try this with my FoxESS inverter

Great tutorial, thanks. I've ordered a wave share module. Any suggestions as to what the setting would be for a sunsynk inverter? I get the data from the cloud at the moment but as you correctly mentioned this is prone to problems if there are any server outages or other internet related issues and even when it works it can be more than a minute between refreshes.. (yes I have increased the update time on the sunsynk to 60 seconds (default is 300). So if I can get this to work on my three sunsynk inverters I'll be more than a little please...

OMG thank you sooo much! ❤ First I’ve been using the Solax integration with the dongle but it would stop working every other day. Then found out about the Waveshare which I bought a couple of months ago and since then I’ve been trying to make it work but always unsuccessfully, I almost gave up until today! Your video is super clear and easy to follow. In the next days I will also add the enclosure and make it nice to look rather than just functional 😅

So in order to get 3 of these modbus devices talk to each other like a growatt inverter, a Wallbox like Pulsar Plus and a eastron 3 phase smart meter I would need rather 3 of these modbus rs 485 to rj45 connectors ? Would be easier to order 3 instead of 1 by one considering that those machines are distributed across the house with an inverter somewhere, the smartmeter in the grid connection point cabinet and the charger / wallbox in the garage. I hope you can help me regarding this topic ! Or is there any wifi connection or bridge from the usual shine wifi x or s stick to the modbus ? I had tried that first by installing the modbus for the ip of the inverter / stick. But I got no entities as you did. And you had mentioned that wifi modbus wouldl be possible but not so reliable and dependent on the internet. Thanks

Thanks for the nice explanation in the video Are there people who have already managed to get it working with a Solis inverter? I have followed all the steps and measured the cables, but for me the act LED does not flash. I have the poe version because my voltage from the inverter is only 5 volts. I have also tried the baterite on 9600 but no success. If something else is connected to a data logger, the RS485 connection works fine. Does anyone have any tips?

Thanks . I have a solis and Solax inverter ..is it possible for this integration to work with both inverters ...they are independent on different arrays but on the same LAN network,

Great tutorial, I’d love to use those with my Solax x1 boost, but I’m not sure I have a comm/ct port free? I have an TS458 port that’s in use for the power meter to tell my inverter how much power the house needs, is my inverter not compatible?

Wow! amazing.. Can you share the image where to put the RJ cable (to the inverter)

Thank You for this tutorial. How can I connect the waveshare to the inverter when an EV Charger is also connected to the com port

Thank you for your video. Can I also use this on my DEYE 12K hybrid inverter?

Hi there, Thank you so much for the video it is very much appreciate. I'm having trouble with only being able to see 4 entities. I have set the static IP on my router and in Vircom I have checked the IP in my browser and have full access I have reset the device and router and it keeps the same ip address I have changed the port to 502 I have changed it to Modbus TCP protocal I have changed the Baud rate to 19200 and check the inverter setting to make sure this is correct In advanced setting I have changed it to simple modbus to TCP and RTU In HA I have changed the polling to 10 Selected Parallel Mode as I have my inverters in parallel Input the ip address exactly as I get access to it through a browser TCP port is 502 I have rebooted HA, and power cycled the batteries. But still only 4 entities, any idea what I'm doing wrong here?

Great set of videos - TY I have a small problem you might be able to help resolve - currently communicating withHA via the SolaX Modbus integration via the wifi dongle - all entities present, switch over to the Waveshare interface and im only getting 4 entities, have tried deleting, rebooting - switch back to the wifi dongle IP and all entities present again ?

Hi, Just ordered waveshare to connect to 2 x Solis S5-EH1P3.6K-L. Also ordered correct 4 pin RS485 plugs for inverters. Any advice about how to connect/use terminating resistors would be very helpful, Will S says these will be needed.

Hi, nice tutorial! How many devices can I connect to this Waveshare's device? I have 20 modbus devices(thermostats) and im trying to find a modbus to MQTT converter. Does Waveshare provide any product?