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syssi / esphome-jk-bms

ESPHome component to monitor and control a Jikong Battery Management System (JK-BMS) via UART-TTL or BLE
Apache License 2.0
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Is my B2A24S15P, hw 8.x, sw 8.0.2H, version 3.7.0 supported? #15

Closed jouking closed 3 years ago

jouking commented 3 years ago

I have a jkbms with hardware 8.x and soft 8.0.2H, version 3.7.0. I have installed the esphome and I have put the code that you have put minus the mqtt instructions that give me an error. I have connected the rs485 module, with an rs485 to TTL 3.3v adapter and an esp8266 but it does not work. Is the version of my JKBms compatible ??

syssi commented 3 years ago

Which model of the JKBMS do you own? Where did you buy the BMS? Could you ask the seller for some specifications about the RS485 of your model? Unfortunately I do not know the differences of the different models / software / hardware versions.

jouking commented 3 years ago

JK-BMS-bluetooth-Manual.pdf B2A24S15P

syssi commented 3 years ago

Could you ask the seller about some details of the RS485 protocol? In my case the seller (HankzorBMS Store) was able to provide some infos about the protocol. How did you wire the modules? Does your rs485 ttl module has a RX/TX led? Does the TX led blink periodically? Did you try to swap the RS485 wires (A & B) once?

KlausLi commented 3 years ago

hello syssi, thanks for your effort! It's a shame that people don't want to help :-(.

KlausLi commented 3 years ago

i have the unsupported one :-) JK-B2A24S20P HW 8.X SW 8.1.2H version 3.7.1 Manuf date: 2021 its from IC GOGOGO (aliexpress) I can not ask him things , its closed that way ! i had a problem on begin with connection , now soldering the rx tx dírectly to the microcontroller . now i become a response on Hterm but not the right one

4E 57 00 13 00 00 00 00 06 03 00 00 00 00 00 00 68 00 00 01 29 moment i made a screenshot from hterm terminal

KlausLi commented 3 years ago

image

on try again its other response and so on

KlausLi commented 3 years ago

normal the response are over 150 signs but today desoldering the digital isolator :-) *ggg , after this action , now he mades only 43 signs as response :-=) ... good quality toy BMS:-)

KlausLi commented 3 years ago

i now desoldering the rest of bms and sale on ebay !

syssi commented 3 years ago

@KlausLi I've added some additional wires to the RX/TX pin of the bluetooth module. My idea was to sniff some traffic there to get rid of the bluetooth module some day. The HankzorBMS Store guy told me the protocol can be customized if I buy more than 100 pieces. It's possible the IC GOGOGO versions are a bit different.

syssi commented 3 years ago

Do you like to test another payload (the old protocol) with different baud rates: 0xDD 0xA5 0x03 0x00 0xFF 0xFD 0x77

KlausLi commented 3 years ago

ok 100 pieces , very good seller , YES we must have that protokoll ! *g

other payloads do not work, i try it all only that 4E 57 00 13 00 00 00 00 06 03 00 00 00 00 00 00 68 00 00 01 29
has a response

i think , we(I) can drill a hole in the MCU and pin it on the wall ! shity bms , i will try with seplos 200A 16s BMS , i becom from alibaba Seller the protokol, its a very robust and really smart bms . the most solarstorages has that inside :-)

https://cn1524225498fqks.en.alibaba.com/product/1600246930684-904757264/Seplos_16S_200A_48V_Lifepo4_lithium_battery_protection_board_LFP_Cell_Balance_Integrated_Circuits_BMS_with_LCD_screen.html?spm=a2700.shop_plgr.41413.16.65bc37f5mlSdgv

KlausLi commented 3 years ago

bluetooth

Can you made a picture from your board , high resolution from folowing area : i want no that smd resistors what value there have

image

syssi commented 3 years ago

This is my BMS (the small / 60A version): https://github.com/syssi/esphome-jk-bms/tree/main/images/jk-bd6a17s6p

KlausLi commented 3 years ago

This is my BMS (the small / 60A version): https://github.com/syssi/esphome-jk-bms/tree/main/images/jk-bd6a17s6p

OK , hab nun den 8pin wieder eingelötet , weil der gut ist aber ich hab ne kaputte diode(die zieht rx auf 0 , war immer 0(durchgang)) gefunden, flux vom can bus gemopst und siehe da v8.x funktioniert doch mit diesem 4e57 command , hab nun einen korrekten response 👍 (erst nach wechsel zum schnelleren Laptop)

wieso willst du den bluetooth anzapfen wann du eh 485 hast ?

4E 57 01 18 00 00 00 00 06 00 01 79 27 01 0E BE 02 0E BB 03 0E BA 04 0E BA 05 0E BA 06 0E BA 07 0E B9 08 0E BB 09 0E 88 0A 0E 85 0B 0E B6 0C 0E B6 0D 0D ED 80 00 13 81 00 2C 82 00 2C 83 13 06 84 00 00 85 44 86 02 87 00 00 89 00 00 00 00 8A 00 0D 8B 00 00 8C 00 03 8E 15 54 8F 0E 38 90 10 68 91 10 04 92 00 05 93 0A F0 94 0C E4 95 00 05 96 01 2C 97 00 05 98 01 2C 99 00 05 9A 00 1E 9B 0D AC 9C 00 14 9D 01 9E 00 5A 9F 00 46 A0 00 64 A1 00 64 A2 00 14 A3 00 46 A4 00 46 A5 FF EC A6 FF F6 A7 FF EC A8 FF F6 A9 0D AA 00 00 00 05 AB 01 AC 01 AD 03 F4 AE 01 AF 01 B0 00 0A B1 14 B2 31 32 33 34 35 36 00 00 00 00 B3 00 B4 49 6E 70 75 74 20 55 73 B5 32 31 30 37 B6 00 00 05 00 B7 48 38 2E 58 5F 5F 53 38 2E 31 2E 32 48 5F 5F B8 00 B9 00 00 00 00 BA 42 54 33 30 37 32 30 32 30 31 32 30 30 30 30 32 30 30 35 32 31 30 30 31 C0 01 00 00 00 00 68 00 00 4E 21

sobald mein Seplos von scheinahausen da ist wandert das JK in die Spielzeugkiste :-) für DIY :-)

syssi commented 3 years ago

Du bist super! Respekt! Die Response vom RS485 Protokoll hat weniger Infos enthalten als die via Bluetooth. Im RS485 Protokoll fehlt der Balancer-Strom und die Innenwiderstände der Zellen etc.

Kannst du dein Setup noch einmal beschreiben? Antwortet dein BMS nun an der regulären Buchse? Sprichst du sofort mit dem ESP oder befinden sich echte RS485-Bauelemente direkt auf dem Mainboard des BMS, so dass es sich nicht mehr um ein UART-TTL Signal handelt, wie bei meiner Version?

syssi commented 3 years ago

Ich sehe gerade, dass du bereits alle Fragen im Edit beantwortet hattest. :-)

KlausLi commented 3 years ago

...echte RS485-Bauelemente direkt auf dem Mainboard...
no keine 485 wie bei dir , nicht vorhanden alles wird über den 122U31 geschleift , wie bei dir

balancerstrom und widerstände sind mir wurscht! :-) , is eh grad a bastler BMS ,ich trau dem teil ned ! Naechste Woche kommt mein Scheini Scheini Profi BMS :-)
Batterie kommen erst .... nachdem Sie wohl mit Spacex eine Rundreise gemacht haben, erst dann zu mir.

syssi commented 3 years ago

Alles klar. Das hilft mir weiter!

syssi commented 3 years ago

Conclusion: The device is supported if your firmware version is >=6.0 and can be connected directly to the ESP.