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I will :) I'm a step closer. The RS485 dongle has some cold soldering somewhere, it does not transfer data until I pull it up a little bit ... Tried another one and was able to make the inverter work after sending the 8 bytes using hterm. Then I went back to the Raspi and tried the script...

not being able to test RS485 today, but I tried to find out what the wifi stick communicates with the µC. I only had 10 min to play around but I did not find a baud rate that shows some real traffic between stick and inverter I saw some 1 byte per second traffic at 2 different baud rates, I...

yes, I'll test that, it's just really warm there right now ;D I also can not connect to my charger with the data from the modbus RTU protocol datasheet, with different RS485 dongle I have to grab my oscilloscope and check the bus after it became a little colder

ok, so to get rid of any mistake: in the app I set battery limit mode and 900W battery output power. then I put the code into a file, changed /dev/rs485 to the symlink of my USB adapter and started it with python3 test.py the loop at the end just counts up, no error message In the app I see...

I tried this (nothing happens) and the code on page 9 (there I have to ctrl+c out of it) but no reaction unfortunately I have no notebook around to try it using windows and a serial terminal

yeah, well, that's what I expected: react to wattage message I send the 8 bytes directly, nothing happens at all, I don't even know if it receives it or anything that's why I tried the 24 00 00 00 00 00 00 00 message to see if it replies anything, but no :/ so node-red is not the problem I...

Hey all I finally got my battery and now I'm able to play around. Actually, I'm not happy, I can not get ANY communication with node-red and RS485 USB adapters. Here we talk about the Soyo 1200W inverter. I got one that has no LCD, but a Wifi-dongle, also a limiter with RS485 connection. I'm...

I did not yet use this inverter, I only tested it in combination with the charger I think it should work via wifi and RS485, you should find something if you search for soyo source rs485 for example https://github.com/KlausLi/Esp-Soyosource-Controller

ah, here you wrote it :) very odd though, maybe that's the difference between 1kW and 2kW version? My amperemeter did show a much higher current @ 1kOhm as you saw in my post above :eek: I think I'll try this circuit too, I already have something similar around, just different parts and I need...

Sorry, I see this just now. here it is: https://www.aliexpress.com/item/1005003638820214.html beware! it has no LCD (I thought it had, even the manual and sheets that come with it show an LCD and buttons ...)

Anyway, I ordered this charger and after that I found out I could have gotten an EPever with my panel setup as a 2x2 panel setup should not be less efficient. But whatever. The housing is pretty cheap, none of the screws can be tightened, but they don't fall out. It seems it is not possible to...

I just got my soyo 1200W inverter and I'm a little sad or unhappy as it has NO LCD at all. Just the wifi stick and limiter. The manual and how-to papers show the inverter with LCD and describe how to set it up using the buttons. I downloaded the app and configured the inverter with it, but I...

Hey all, does anyone here have experiences with this charger called BD60A: (or 80A or 100A) https://www.aliexpress.com/item/1005003897675742.html My fav is an EPever Xtra for 48V systems, but they only have a string Voc of max 150V, I need about 200V to use my current solar panels. The EPever...

I've read some things on German forums, but all are just about the 1000W GTIL2. This one you can control with a small change to its controller PCB and then you just need external 0 to 5V and a resistor voltage divider. That is the solution I'd like for the 2000W GTIL2, but it seems it only works...

ok, that's not what I want to do though :) I've found another charger https://www.aliexpress.com/item/1005003592048485.html?spm=a2g0o.detail.1000014.3.26d54798yKYytn but I can not find any user reviews anywhere :o

ok, I tried some things myself just now. Applying an external voltage doesn't do anything with my GTIL2. I did hope to control it using an DAC as you do it with DCDC converter feedback resistors etc. Then I tried limiting using a fix 1k resistor, that dropped the power from 450 to 340W. But...

hey DNS28, but that's not for solar panels, that's a lab power supply?

Thanks, Korishan! It's always hard to ask specialized questions in existing threads, I know :) A little update : Currently I still read into the stuff and it seems the soyo 1200W inverter I have found earlier today is available from another "brand" and controlling via RS485 is kinda easy. I...

Hello all! It became a little quiet here, so excuse the following rant :D I try to give as much information as possible and maybe someone here understands what want to do and knows a way to solve my problem. I want to realize a little project that includes my currently running GF-SUN-2000G2...