China noname bms

[test3210-d]

bms is similar to SuperVoltBt,
same UUID_RX = '6e400003-b5a3-f393-e0a9-e50e24dcca9e' UUID_TX = '6e400002-b5a3-f393-e0a9-e50e24dcca9e'

different commands packet structure [01] [03] [data length] [data ...] [2 byte checksum]

-Send -> 01 03 23 1C 00 04 8E 4B #<> bat info cell count, temp count , num ? ? rx> 01 03 08 00 04 00 01 00 06 00 05 CD D5 #<> 4 cell 1 termo sensor , ?? ??

-Send -> 01 03 D0 00 00 26 FC D0 #<> voltages info rx> 01 03 4C 0E 2D 0E 14 0E 2C 0E 2D EE 49 EE 49 EE 49 EE 49 rx> EE 49 EE 49 EE 49 EE 49 EE 49 EE 49 EE 49 EE 49 EE 49 EE 49 rx> EE 49 EE 49 EE 49 EE 49 EE 49 EE 49 EE 49 EE 49 EE 49 EE 49 rx> EE 49 EE 49 EE 49 EE 49 0E 2D 0E 14 00 01 00 02 00 19 05 A8 rx> 68 90

0e2d = 3629 mv 05a8= 1448 = 14.48 V battery voltage

-Send -> 01 03 D0 26 0 19 5D 0B <> capacity && temp rx> 0x01 ,0x03 ,0x32 ,0x02 ,0x80 ,0x0 ,0x0 ,0x0 ,0x0 ,0x0 ,0x0 ,0x0 ,0x0 ,0x0 ,0x0 ,0x0 ,0x0 ,0x0 ,0x0 rx> 0x00 ,0x00 ,0x02 ,0x80 ,0x02 ,0x80 ,0x2 ,0x80 ,0x00 ,0x07 ,0xUU ,0xUU ,0x0 ,0x64 ,0x0 ,0x64 ,0x26 ,0xf1 ,0x27 ,0x10 rx> 0x27 ,0x10 ,0x0 ,0x2 ,0x00 ,0x00 ,0x00 ,0x04 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x00 ,0x76 ,0x95

00 64 = 100% capacity 26f1 = 9 969 = 99.690 Ah current capacity 2710 = 10 000 = design capacity 100.0 Ah
00 07 = 0.7 A charge current next cell marked as 0xUU ,0xUU - discharge current ,

02 80 = 640 = temperature 24.0 C (x-400)/10

I think it is possible to make a template for such bms and just choose the position of the variable and its conversion formula in the config file, because the Chinese manufacturers do everything in a new way every time I check communication using esp32 , it work . But python not for me :(

[fl4p]

thanks, i'll think about a way to implement this

[Karatzie]

Hi. The UUIDs UUID_RX = '6e400003-b5a3-f393-e0a9-e50e24dcca9e' UUID_TX = '6e400002-b5a3-f393-e0a9-e50e24dcca9e' will be used for UART over Bluetooth. I found this in a lot of github configurations. Wich BMS APP will be used for your battery? BR Andreas