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@Getget How many cells does your battery use? 15 cells or 16 cells?

Yes !

@ChrisG B2A20S2P works perfecly.

@Sleeper85 I will try your new version and I will give you a return. How can I stop scrolling any data column right to see alarm messages, etc... ??

@Sleeper85 It works perfectly. The blue LED flashes, what does that mean? Inverter shows message 04 "Low battery level" since I connected ESP32. What value in your program is used for comparison?

@Sleeper85 i have Growatt inverter SPF5000ES and JK-B2A20S20P, your .yaml run with ?

By manipulating the jkbms Vbat, I burned my esp32. I just received the new one. @mrconstantin can you give me a key again please? id: d7f9d108

I used this diagram ... There is a big problem in your software, for it to work I have to use RS485 port ????

@Sleeper85 Thank you for this detailed explanation. I now better understand the usefulness of ESP32.

@Sleeper85 In a connection between bms and inverter, it is the bms which sends all the data present in the table below to the inverter. Why with your system, is it user to register them?? The connection between the bms and the esp32 is useless in your case ??

Noting :)

@mrconstantin You agree with this diagram?

Thank you very much. Merry Christmas. I would like to support it but it doesn't work. Communication between the bms and the ESP32 does not work, no information in the app. In Serial Protocol I have chosen JKBMS.

A fault may occur on the BMS. In this case we are in the dark??? A friend has SofarSolar inverter, when he unplugs the RJ45 cable, the inverter goes immediately to the grid !!

Hello. Can you help me? This afternoon, I was like in the photo. I did a test, I disconnected the RJ45 cable between the SPF5000ES and the battery. Immediately, the Growatt cut off all electricity in the house and indicated an error 04 and 20 (low battery voltage and no communication with the...

Why do we need this app key to make the application work?

@MarcelVo I'm not looking for the password but the APP KEY that @mrconstantin provides based on the ID.

Great, it works. How can I get App Key @mrconstantin ?

I succeeded, but when I connect to the ESP32 it asks me for a password. What should I enter?

So this one first : 0x1000.bin, then 0x8000.bin and and for finish 0x10000.bin ?

That ? Which one first?

What should I use?

@mrconstantin I am French and I use Google translate. I would like to carry out the hardware part myself, do you think this diagram could work with your program? How can I get your program?

Clear and precise answer, thank you

I will give you more details. Parameter #18 is already on ENA. My battery gives 7kWh, in the JKBMS I limited the discharge current to 65A which gives around 3200w and I authorized in the BMS the excess of 65A for 30s (Discharge OCP Delay(S). When the house (load) does not require more than...

Hello. I have an SPF5000ES and a 16S DIY battery. I just did a test, when the inverter is running on battery/solar and I open the battery circuit breaker, the inverter cuts power to the whole house, turns off and the Fault light turns red . Why does the inverter not immediately return to the...

In the case of several batteries, cables of different lengths cause what problems?

Should the length of the red and black wires (+ and -) coming out of the cells and going to the mppt charger be the same length or is it not important?

Yes, I'am talking about this.

Are you talking about that? Is this the value in ohms of the red balancing wires? Cell Wire Resistance

Hello, what is the use of this page in the JKBMS software?

Hello, in the Solar Assistant interface I have this on a certain day. What does this mean exactly? I have a Growatt SPF5000 in USB0 and a JKBMS in USB1.

What exactly does this mean? USB0 --> Growatt USB1 --> JKBMS

Is this something that might interest you?

Where can I find the kernel log and dmesg? In the solar assistant settings I have this in "Configuration > System USB devices - Cycle USB power : And this : Kernel Log in Word format. https://www.casimages.com/fi/23103101302625169711788.doc.html