Sunsynk Dongle -Gauteng

[1edge1]

I am in a similar situation. I have a Sunsynk inverter but no dongle and not which option to go for.

Looks like by forum majority, the Solarman Dongle (LSW-3) is the way to go. Can I purchase and plug and play?

 

[Speedster]

Hello.
Please explain with baby steps how to use the solarman app, whether smart or business, to get access rights to change settings on the sunsynk inverter remotely.

Do you have a Solarman dongle and Solarman business account?

 

[Speedster]

That's weird. Dongle is meant to be included with the inverter. Either way, you can pick your preference and then you just plug it in and off you go.

 

[SS User]

Ok since there is a thread already, I will post here.

I recently noticed that my wifi dongle was not syncing to the app and website.


I managed to find the solution to the issue today on the PowerForum Store;

My variation of the solution of various attempts:


1. Unplug/switch off your wifi router
2. Disconnect the dongle, use a phillips screwdriver.
3. Wait 30 seconds or more and reconnect the dongle
4. Connect the phone to the dongle wifi use password 12345678.
4. Go to 10.10.10.1 on your browser (mine is 10.10.10.2)
5. Uncheck the tickmark for "use the following static IP address and click save
6. You might get error message could not save, try again.
7. If you done everything correct the dongle will display both red and green lights.


Now the crap part. Dongle and App does not give access to the information stored in the inverter for the days dongle was offline:

View attachment 1463141

Came here hoping there was a solution …. So appears there is no offline storage and trf to dongle/cloud when internet is restored?? Sad when I think how expensive the kit is.

We had a Fibre outage (Vumatel with their usual useless maintenance teams in Greenside over past few months) and were out for three days.

Setup is inverter in cottage so didn’t bother to go out and monitor manually over last few days

 

[RonSwanson]

There's a guy selling a dozen Sunsynk dongles cheap in the classifieds on Powerforum.

 

[Next Thing]

Super important point: Solarman has HA integration, SunSynk doesn't.

Hmmm Mine is working fine ...
I get data from the sunsynk servers where their dongles send it to.

Oh and the gaps in my data is not a sunsynk issue, but me reconfiguring the extended wifi in that part of the house.
Im still on region 1 of sunsynk and it has been stable for me for a long time now.

HA is allways a bit of work, but nothing is impossible.
I am aware of 2 or 3 different solutions to getting data into HA from sunsynk other than solarman/S Assistant and other dongle/software apps

 

[rh1]

Came here hoping there was a solution …. So appears there is no offline storage and trf to dongle/cloud when internet is restored?? Sad when I think how expensive the kit is.

We had a Fibre outage (Vumatel with their usual useless maintenance teams in Greenside over past few months) and were out for three days.

Setup is inverter in cottage so didn’t bother to go out and monitor manually over last few days

The inverter itself saves the information, but if offliine, the information is not transferred to the app.

 

[RoganDawes]

FWIW, it is possible to reflash the Sunsynk dongle with ESPHome firmware, to achieve 100% local control of your inverter, generally in combination with Home Assistant. The only feature currently missing is the firmware upgrade (and of course, this disconnects your inverter from the Sunsynk cloud). If this scares you, it is possible to take a backup of the existing e-linter firmware (OEM supplier for Sunsynk's cloud), and restore it should you decide that ESPHome/HA is not what you want.

Thread on how is over on the PowerForum site: https://powerforum.co.za/topic/12604-sunsynk-wifi-dongle-hacking/?do=findComment&comment=202246

Basically, the Sunsynk dongle is an ESP32C3 (RISC-V) microcontroller with an RS232 transceiver. The dongle talks modbus to the inverter, and some custom protocol to e-linter's cloud servers. Replace the firmware with ESPHome, and appropriate modbus register definitions, and you have complete and direct control of your inverter via HA.

To reflash, you only need a USB-TTL (3.3v) dongle, and some jumper wires (and probably a medium flat screwdriver to open the case). Most importantly, the Sunsynk dongle can be powered by providing 3v3 directly to the filtering capacitors immediately to the left of the ESP32-C3-Mini module, or you can give it 12V on pin 9 (Ring Indicator) of the DE9 connector. You do need to connect to the Rx and Tx pins to the right of the ESP32 module, and bridge the ISP jumper while applying power to get into programming mode. Then esptool can be use to backup the vendor firmware, before flashing the ESPHome firmware.