JK-BMS PB1A16S15P supported? #555

vpritulin · 2024-08-01T22:47:00Z

vpritulin
Aug 1, 2024

This project supports JK BMS PB1A16S15P connection or not?
I would like to connect my BMS to esphome

syssi · 2024-08-02T05:36:43Z

syssi
Aug 2, 2024
Maintainer

Yes it's supported but untested yet.

66 replies

syssi Aug 9, 2024
Maintainer

You have to select the device address using the DIP switches. Please select 0x01 here and use the same value at the YAML.

vpritulin Aug 9, 2024
Author

Yes, I tried it but it doesn't work. It's weird that the esp doesn't receive data from the bms

vpritulin Aug 9, 2024
Author

@syssi I tried to connect via PC to bms via rs485 to usb and got the result. So my rj45 is correct

syssi Aug 9, 2024
Maintainer

You are using a USB-to-RS485 converter, correct? The mentioned RS485 converter above isn't in use here?

vpritulin Aug 9, 2024
Author

I bought this RS-485 to USB Converter (CH340) and it worked on a PC with BMS.

I also tried to use this yaml for esp32 without using GPIO4, but it did not help
https://github.com/syssi/esphome-jk-bms/blob/esp8266-pb-modbus/esp32-jk-pb-modbus-example.yaml

vvroman · 2024-08-10T15:13:20Z

vvroman
Aug 10, 2024

Hi,
My PB BMS works only with 0x01 address. default (0x00) does not work (TX led on converter blinks, but no response from BMS).
I use following simple config for UART/MODBUS/SENSORS for tests. My RS485 converter has automatic flow control.

uart:
  - id: uart_0
    baud_rate: 115200
    rx_buffer_size: 384
    tx_pin: ${tx_pin}
    rx_pin: ${rx_pin}

modbus:
  id: modbus0

modbus_controller:
  - id: bms0
    # Address of the Modbus slave device on the bus
    address: 0x01
    modbus_id: modbus0
    setup_priority: -10
    update_interval: 5s
    command_throttle: 50ms

sensor: 
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "${name} total runtime in seconds"
    address: 0x12BC
    register_type: holding
    value_type: U_DWORD
    state_class: measurement
    accuracy_decimals: 0
    id: total_runtime

log output:

[18:11:20][C][modbus_controller:341]: ModbusController:
[18:11:20][C][modbus_controller:342]:   Address: 0x01
[18:11:21][D][modbus_controller.sensor:025]: Sensor new state: 2001.00
[18:11:21][D][sensor:094]: 'jk-bms total runtime in seconds': Sending state 2001.00000  with 0 decimals of accuracy
[18:11:26][D][modbus_controller.sensor:025]: Sensor new state: 2006.00
[18:11:26][D][sensor:094]: 'jk-bms total runtime in seconds': Sending state 2006.00000  with 0 decimals of accuracy
[18:11:31][D][modbus_controller.sensor:025]: Sensor new state: 2011.00
[18:11:31][D][sensor:094]: 'jk-bms total runtime in seconds': Sending state 2011.00000  with 0 decimals of accuracy

15 replies

vvroman Aug 12, 2024

I'm getting power for ESP32 directly from battery.

syssi Aug 12, 2024
Maintainer

Please be careful! If the discharging mosfet turns off there is the risk the current flows via the DC-DC converter to the consumer. A isolated power source is recommended.

vpritulin Oct 5, 2024
Author

@vvroman Hi, I decided to use the same controller as yours, could you share your yaml file, how is it configured for you?

vvroman Oct 5, 2024

My simple config to test:

substitutions:
  name: jk-bms
  device_description: "Monitor JK-BMS"
  tx_pin: GPIO18
  rx_pin: GPIO17

esphome:
  name: esp04
  comment: ${device_description}
  friendly_name: ESP04

esp32:
  board: um_feathers3
  framework:
    type: arduino

logger:

api:
  encryption:
    key: !secret api_key

ota:
  - platform: esphome
    password: !secret ota_password

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

uart:
  - id: uart_0
    baud_rate: 115200
    rx_buffer_size: 384
    tx_pin: ${tx_pin}
    rx_pin: ${rx_pin}

modbus:
  id: modbus0

modbus_controller:
  - id: bms0
    # Address of the Modbus slave device on the bus
    address: 0x01
    modbus_id: modbus0
    setup_priority: -10
    update_interval: 5s
    command_throttle: 50ms

sensor:
  # 0x12BC   188   UINT32    4    R    RunTime         S
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "${name} total runtime in seconds"
    address: 0x12BC
    register_type: holding
    value_type: U_DWORD
    state_class: measurement
    accuracy_decimals: 0
    id: total_runtime

vpritulin Oct 7, 2024
Author

@vvroman Thanks! it works with esp8266 nodemcu

vpritulin · 2024-10-07T08:23:21Z

vpritulin
Oct 7, 2024
Author

@syssi Hello! Maybe you know how to get data for incoming energy and outgoing energy from the battery? From which sensors can I read the readings?
My full yaml

substitutions:
  external_components_source: github://syssi/esphome-jk-bms@main
  tx_pin: GPIO13 #GPIO1 #GPIO16
  rx_pin: GPIO12 #GPIO3 #GPIO17

esphome:
  name: jk-bms-monitor
  friendly_name: JK BMS Monitor

esp8266:
  board: esp01_1m

# Enable logging
logger:
  level: DEBUG #VERBOSE #DEBUG #INFO #VERY_VERBOSE #VERBOSE #DEBUG #INFO #DEBUG
  tx_buffer_size: 2048

# Enable Home Assistant API
api:
  encryption:
    key: ""

ota:
  - platform: esphome
    password: ""

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Jk-Bms-Monitor Fallback Hotspot"
    password: ""

uart:
  - id: uart_0
    baud_rate: 115200
    rx_buffer_size: 384
    tx_pin: ${tx_pin}
    rx_pin: ${rx_pin}

modbus:
  id: modbus0

modbus_controller:
  - id: bms0
    # Dip switch configuration of a single pack setup / address 0x01
    #  1    2    4    5
    #  on, off, off, off (0x01)
    #
    # Don't turn off all dip switches / don't use device address 0x00.
    # This is the Modbus Master mode. You must select a device address
    # between 0x01 and 0x0f so the BMS acts as Modbus Slave.
    address: 0x01
    modbus_id: modbus0
    setup_priority: -10
    update_interval: 5s
    command_throttle: 50ms

sensor:
  # 0x1200    0    UINT16    2    R    CellVol0    mV
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell voltage 01"
    address: 0x1200
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "V"
    device_class: voltage
    state_class: measurement
    accuracy_decimals: 3
    id: cell01
    filters:
      - multiply: 0.001

  # 0x1202    2    UINT16    2    R    CellVol1    mV
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell voltage 02"
    address: 0x1202
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "V"
    device_class: voltage
    state_class: measurement
    accuracy_decimals: 3
    id: cell02
    filters:
      - multiply: 0.001

  # 0x1204    4    UINT16    2    R    CellVol2    mV
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell voltage 03"
    address: 0x1204
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "V"
    device_class: voltage
    state_class: measurement
    accuracy_decimals: 3
    id: cell03
    filters:
      - multiply: 0.001

  # 0x1206    6    UINT16    2    R    CellVol3    mV
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell voltage 04"
    address: 0x1206
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "V"
    device_class: voltage
    state_class: measurement
    accuracy_decimals: 3
    id: cell04
    filters:
      - multiply: 0.001

  # 0x1208    8    UINT16    2    R    CellVol4    mV
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell voltage 05"
    address: 0x1208
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "V"
    device_class: voltage
    state_class: measurement
    accuracy_decimals: 3
    id: cell05
    filters:
      - multiply: 0.001

  # 0x120A   10    UINT16    2    R    CellVol5    mV
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell voltage 06"
    address: 0x120A
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "V"
    device_class: voltage
    state_class: measurement
    accuracy_decimals: 3
    id: cell06
    filters:
      - multiply: 0.001

  # 0x120C   12    UINT16    2    R    CellVol6    mV
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell voltage 07"
    address: 0x120C
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "V"
    device_class: voltage
    state_class: measurement
    accuracy_decimals: 3
    id: cell07
    filters:
      - multiply: 0.001

  # 0x120E   14    UINT16    2    R    CellVol7    mV
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell voltage 08"
    address: 0x120E
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "V"
    device_class: voltage
    state_class: measurement
    accuracy_decimals: 3
    id: cell08
    filters:
      - multiply: 0.001

  # 0x1210   16    UINT16    2    R    CellVol8    mV
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell voltage 09"
    address: 0x1210
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "V"
    device_class: voltage
    state_class: measurement
    accuracy_decimals: 3
    id: cell09
    filters:
      - multiply: 0.001

  # 0x1212   18    UINT16    2    R    CellVol9    mV
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell voltage 10"
    address: 0x1212
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "V"
    device_class: voltage
    state_class: measurement
    accuracy_decimals: 3
    id: cell10
    filters:
      - multiply: 0.001

  # 0x1214   20    UINT16    2    R    CellVol10   mV
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell voltage 11"
    address: 0x1214
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "V"
    device_class: voltage
    state_class: measurement
    accuracy_decimals: 3
    id: cell11
    filters:
      - multiply: 0.001

  # 0x1216   22    UINT16    2    R    CellVol11   mV
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell voltage 12"
    address: 0x1216
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "V"
    device_class: voltage
    state_class: measurement
    accuracy_decimals: 3
    id: cell12
    filters:
      - multiply: 0.001

  # 0x1218   24    UINT16    2    R    CellVol12   mV
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell voltage 13"
    address: 0x1218
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "V"
    device_class: voltage
    state_class: measurement
    accuracy_decimals: 3
    id: cell13
    filters:
      - multiply: 0.001

  # 0x121A   26    UINT16    2    R    CellVol13   mV
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell voltage 14"
    address: 0x121A
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "V"
    device_class: voltage
    state_class: measurement
    accuracy_decimals: 3
    id: cell14
    filters:
      - multiply: 0.001

  # 0x121C   28    UINT16    2    R    CellVol14   mV
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell voltage 15"
    address: 0x121C
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "V"
    device_class: voltage
    state_class: measurement
    accuracy_decimals: 3
    id: cell15
    filters:
      - multiply: 0.001

  # 0x121E   30    UINT16    2    R    CellVol15   mV
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell voltage 16"
    address: 0x121E
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "V"
    device_class: voltage
    state_class: measurement
    accuracy_decimals: 3
    id: cell16
    filters:
      - multiply: 0.001

  # 0x1240   64    UINT32    4    R    CellStatus    (each bit indicates a attached cell)

  # 0x1244   68    UINT16    2    R    CellVolAverage    mV
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "average cell voltage"
    address: 0x1244
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "V"
    device_class: voltage
    state_class: measurement
    accuracy_decimals: 3
    filters:
      - multiply: 0.001
      
  # 0x1246   70    UINT16    2    R    CellVoltageDifferenceMax    mV
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "delta cell voltage"
    address: 0x1246
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "V"
    device_class: voltage
    state_class: measurement
    accuracy_decimals: 3
    filters:
      - multiply: 0.001
      
  # 0x1248   72    UINT8/UINT8 2  R    MaxVolCellNbr
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "max voltage cell"
    address: 0x1248
    register_type: holding
    value_type: U_WORD
    bitmask: 0xFF00
    filters:
      - offset: 1

  # 0x1248   72    UINT8/UINT8 2  R    MinVolCellNbr
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "min voltage cell"
    address: 0x1248
    register_type: holding
    value_type: U_WORD
    bitmask: 0x00FF
    filters:
      - offset: 1

  # 0x128C   140   UINT32    4    R    CellWireResSta  Bit per Cell
  # 0x1290   144   UINT32    4    R    BatVol          mV
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "total voltage"
    address: 0x1290
    register_type: holding
    value_type: U_DWORD
    unit_of_measurement: "V"
    device_class: voltage
    state_class: measurement
    id: bvolt
    accuracy_decimals: 2
    filters:
      - multiply: 0.001

  # 0x1294   148   UINT32    4    R    BatWatt         mW  >> replaced with sensor template to display negative values
#  - platform: modbus_controller
#    modbus_controller_id: bms0
#    name: "power"
#    address: 0x1294
#    register_type: holding
#    value_type: U_DWORD
#    unit_of_measurement: "W"
#    state_class: measurement
#    accuracy_decimals: 0
#    filters:
#      - multiply: 0.001

  # 0x1298   152    INT32    4    R    BatCurrent      mA
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "current"
    address: 0x1298
    register_type: holding
    value_type: S_DWORD
    unit_of_measurement: "A"
    state_class: measurement
    id: bcurr
    accuracy_decimals: 2
    filters:
      - multiply: 0.001
      
  # 0x128A   138    INT16    2    R    TempMos         0.1 °C
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "mosfet temperature"
    address: 0x128A
    register_type: holding
    value_type: S_WORD
    unit_of_measurement: "°C"
    state_class: measurement
    accuracy_decimals: 1
    filters:
      - multiply: 0.1

  # 0x129C   156    INT16    2    R    TempBat 1       0.1 °C
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "temperature sensor 01"
    address: 0x129C
    register_type: holding
    value_type: S_WORD
    unit_of_measurement: "°C"
    state_class: measurement
    accuracy_decimals: 1
    filters:
      - multiply: 0.1

  # 0x129E   158    INT16    2    R    TempBat 2       0.1 °C
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "temperature sensor 02"
    address: 0x129E
    register_type: holding
    value_type: S_WORD
    unit_of_measurement: "°C"
    state_class: measurement
    accuracy_decimals: 1
    filters:
      - multiply: 0.1

  # 0x12F8   156    INT16    2    R    TempBat 3       0.1 °C
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "temperature sensor 03"
    address: 0x12F8
    register_type: holding
    value_type: S_WORD
    unit_of_measurement: "°C"
    state_class: measurement
    accuracy_decimals: 1
    filters:
      - multiply: 0.1

  # 0x12FA   156    INT16    2    R    TempBat 4       0.1 °C
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "temperature sensor 04"
    address: 0x12FA
    register_type: holding
    value_type: S_WORD
    unit_of_measurement: "°C"
    state_class: measurement
    accuracy_decimals: 1
    filters:
      - multiply: 0.1

  # 0x12FC   156    INT16    2    R    TempBat 5       0.1 °C
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "temperature sensor 05"
    address: 0x12FC
    register_type: holding
    value_type: S_WORD
    unit_of_measurement: "°C"
    state_class: measurement
    accuracy_decimals: 1
    filters:
      - multiply: 0.1

  # 0x12A0   160   UINT32    4    R    AlarmBitmask
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "errors"
    address: 0x12A0
    register_type: holding
    value_type: U_DWORD
    
  # 0x12A4   164    INT16    2    R    BalanCurrent    mA
  # 0x12A6   166 UINT8 2    R    BalanStatatus (2:+charge; 1:-charge ; 0:off)
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "status balance"
    address: 0x12A6
    register_type: holding
    value_type: U_WORD
    bitmask: 0xFF00

  # 0x12A6   166 UINT8 2    R    SOCStateOfcharge %
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "soc"
    address: 0x12A6
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "%"
    state_class: measurement
    bitmask: 0x00FF
 
   # 0x12A8   168    INT32    2    R    SOCCapRemain    mAH
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "capacity remaining"
    address: 0x12A8
    register_type: holding
    value_type: S_DWORD
    unit_of_measurement: "A"
    state_class: measurement
    accuracy_decimals: 0
    filters:
      - multiply: 0.001
  
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cycle capacity"
    address: 0x12B4
    register_type: holding
    value_type: U_DWORD
    unit_of_measurement: "Ah"
    state_class: measurement
    accuracy_decimals: 0
    filters:
      - multiply: 0.001

      
  # 0x12AC   172   UINT32    4    R    SOCFullChargeCap    mAH
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "soc full"
    address: 0x12AC
    register_type: holding
    value_type: U_DWORD
    accuracy_decimals: 0
    filters:
      - multiply: 0.001

  # 0x12B0   176   UINT32    4    R    SOCCycleCount   次
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "charging cycles"
    address: 0x12B0
    register_type: holding
    value_type: U_DWORD
      
  # 0x12B4   180   UINT32    4    R    SOCCycleCap     mAH
  # 0x12B8   184 UINT8+UINT8 2    R    StateOfHealth % / Precharge stats (1:打开 ; 0:关闭)
  # 0x12BA   186   UINT16    2    R    UserAlarm

  # 0x12BC   188   UINT32    4    R    RunTime         S
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "total runtime"
    address: 0x12BC
    register_type: holding
    value_type: U_DWORD
    state_class: measurement
    accuracy_decimals: 0
    id: total_runtime
    
  # 0x12C0   192 UINT8 Charge (1:on ; 0:off)
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "status charge"
    address: 0x12C0
    register_type: holding
    value_type: U_WORD
    bitmask: 0xFF00

  # 0x12C0   192 UINT8 Discharge (1:on ; 0:off)
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "status discharge"
    address: 0x12C0
    register_type: holding
    value_type: U_WORD
    bitmask: 0x00FF


    # 0x124A   74    UINT16    2    R    CellWireRes0    mΩ
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell resistance 01"
    address: 0x124A
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "Ω"
    state_class: measurement
    accuracy_decimals: 3
    filters:
      - multiply: 0.001

  # 0x124C   76    UINT16    2    R    CellWireRes1    mΩ
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell resistance 02"
    address: 0x124C
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "Ω"
    state_class: measurement
    accuracy_decimals: 3
    filters:
      - multiply: 0.001

  # 0x124E   78    UINT16    2    R    CellWireRes2    mΩ
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell resistance 03"
    address: 0x124E
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "Ω"
    state_class: measurement
    accuracy_decimals: 3
    filters:
      - multiply: 0.001

  # 0x1250   80    UINT16    2    R    CellWireRes3    mΩ
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell resistance 04"
    address: 0x1250
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "Ω"
    state_class: measurement
    accuracy_decimals: 3
    filters:
      - multiply: 0.001

  # 0x1252   82    UINT16    2    R    CellWireRes4    mΩ
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell resistance 05"
    address: 0x1252
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "Ω"
    state_class: measurement
    accuracy_decimals: 3
    filters:
      - multiply: 0.001

  # 0x1254   84    UINT16    2    R    CellWireRes5    mΩ
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell resistance 06"
    address: 0x1254
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "Ω"
    state_class: measurement
    accuracy_decimals: 3
    filters:
      - multiply: 0.001

  # 0x1256   86    UINT16    2    R    CellWireRes6    mΩ
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell resistance 07"
    address: 0x1256
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "Ω"
    state_class: measurement
    accuracy_decimals: 3
    filters:
      - multiply: 0.001

  # 0x1258   88    UINT16    2    R    CellWireRes7    mΩ
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell resistance 08"
    address: 0x1258
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "Ω"
    state_class: measurement
    accuracy_decimals: 3
    filters:
      - multiply: 0.001

  # 0x125A   90    UINT16    2    R    CellWireRes8    mΩ
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell resistance 09"
    address: 0x125A
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "Ω"
    state_class: measurement
    accuracy_decimals: 3
    filters:
      - multiply: 0.001

  # 0x125C   92    UINT16    2    R    CellWireRes9    mΩ
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell resistance 10"
    address: 0x125C
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "Ω"
    state_class: measurement
    accuracy_decimals: 3
    filters:
      - multiply: 0.001

  # 0x125E   94    UINT16    2    R    CellWireRes10   mΩ
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell resistance 11"
    address: 0x125E
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "Ω"
    state_class: measurement
    accuracy_decimals: 3
    filters:
      - multiply: 0.001

  # 0x1260   96    UINT16    2    R    CellWireRes11   mΩ
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell resistance 12"
    address: 0x1260
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "Ω"
    state_class: measurement
    accuracy_decimals: 3
    filters:
      - multiply: 0.001

  # 0x1262   98    UINT16    2    R    CellWireRes12   mΩ
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell resistance 13"
    address: 0x1262
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "Ω"
    state_class: measurement
    accuracy_decimals: 3
    filters:
      - multiply: 0.001

  # 0x1264   100   UINT16    2    R    CellWireRes13   mΩ
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell resistance 14"
    address: 0x1264
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "Ω"
    state_class: measurement
    accuracy_decimals: 3
    filters:
      - multiply: 0.001

  # 0x1266   102   UINT16    2    R    CellWireRes14   mΩ
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell resistance 15"
    address: 0x1266
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "Ω"
    state_class: measurement
    accuracy_decimals: 3
    filters:
      - multiply: 0.001

  # 0x1268   104   UINT16    2    R    CellWireRes15   mΩ
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "cell resistance 16"
    address: 0x1268
    register_type: holding
    value_type: U_WORD
    unit_of_measurement: "Ω"
    state_class: measurement
    accuracy_decimals: 3
    filters:
      - multiply: 0.001 

 
  # 0x12C2   194   UINT16    2    R    UserAlarm2
  # 0x12C4   196   UINT16    2    R    TimeDcOCPR      S
  # 0x12C6   198   UINT16    2    R    TimeDcSCPR      S
  # 0x12C8   200   UINT16    2    R    TimeCOCPR       S
  # 0x12CA   202   UINT16    2    R    TimeCSCPR       S
  # 0x12CC   204   UINT16    2    R    TimeUVPR        S
  # 0x12CE   206   UINT16    2    R    TimeOVPR        S
  # 0x12D0   208 UINT8+UINT8 2    R    AbsentBitmask (Bit0: MOS TempSensorAbsent, Bit1: BATTempSensor1Absent, Bit2: BATTempSensor2Absent, Bit4: BATTempSensor4Absent, Bit5: BATTempSensor5Absent) / Heating
  # 0x12D2   210   UINT16    2    R    Reserved
  # 0x12D4   212   UINT16    2    R    TimeEmergency   S
  # 0x12D6   214   UINT16    2    R    BatCurCorrect
  # 0x12D8   216   UINT16    2    R    VolChargCur     mV
  # 0x12DA   218   UINT16    2    R    VolDischargCur  mV
  
  # sensor power formatted (voltage * current) to display negative/positive values 
  - platform: template
    name: "power"
    update_interval: 2s
    accuracy_decimals: 0
    lambda:
      if (!isnan(id(bvolt).state) && !isnan(id(bcurr).state)) {
        return id(bvolt).state * id(bcurr).state;
      } else {
        return {};
      }
  
  # sensor display maxim cell voltage
  - platform: combination
    type: max
    name: "max cell voltage"
    accuracy_decimals: 3
    sources:
      - source: cell01
      - source: cell02
      - source: cell03  
      - source: cell04  
      - source: cell05  
      - source: cell06  
      - source: cell07  
      - source: cell08  
      - source: cell09  
      - source: cell10  
      - source: cell11  
      - source: cell12  
      - source: cell13  
      - source: cell14  
      - source: cell15  
      - source: cell16  

  # sensor display minim cell voltage
  - platform: combination
    type: min
    name: "min cell voltage"
    accuracy_decimals: 3
    sources:
      - source: cell01
      - source: cell02
      - source: cell03  
      - source: cell04  
      - source: cell05  
      - source: cell06  
      - source: cell07  
      - source: cell08  
      - source: cell09  
      - source: cell10  
      - source: cell11  
      - source: cell12  
      - source: cell13  
      - source: cell14  
      - source: cell15  
      - source: cell16  
      
switch:
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "discharging"
    custom_command: [0x00, 0x03, 0x10, 0x74, 0x00, 0x02]
    write_lambda: |-
      payload.push_back(0x00);
      payload.push_back(0x10);
      payload.push_back(0x10);
      payload.push_back(0x74);
      payload.push_back(0x00);
      payload.push_back(0x02);
      payload.push_back(0x04);
      payload.push_back(0x00);
      payload.push_back(0x00);
      payload.push_back(0x00);
      payload.push_back(x);
      return true;
    lambda: |-
      if (data.size() != 4 ) {
        ESP_LOGE("Custom", "Invalid data size %d",data.size());
        return {};
      }
      return (data[3] == 1);

  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "charging"
    custom_command: [0x00, 0x03, 0x10, 0x70, 0x00, 0x02]
    write_lambda: |-
      payload.push_back(0x00);
      payload.push_back(0x10);
      payload.push_back(0x10);
      payload.push_back(0x70);
      payload.push_back(0x00);
      payload.push_back(0x02);
      payload.push_back(0x04);
      payload.push_back(0x00);
      payload.push_back(0x00);
      payload.push_back(0x00);
      payload.push_back(x);
      return true;
    lambda: |-
      if (data.size() != 4 ) {
        ESP_LOGE("Custom", "Invalid data size %d",data.size());
        return {};
      }
      return (data[3] == 1);

  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "balancing"
    custom_command: [0x00, 0x03, 0x10, 0x78, 0x00, 0x02]
    write_lambda: |-
      payload.push_back(0x00);
      payload.push_back(0x10);
      payload.push_back(0x10);
      payload.push_back(0x78);
      payload.push_back(0x00);
      payload.push_back(0x02);
      payload.push_back(0x04);
      payload.push_back(0x00);
      payload.push_back(0x00);
      payload.push_back(0x00);
      payload.push_back(x);
      return true;
    lambda: |-
      if (data.size() != 4 ) {
        ESP_LOGE("Custom", "Invalid data size %d",data.size());
        return {};
      }
      return (data[3] == 1);      
      
text_sensor:
  - platform: template
    name: "total runtime formatted"
    update_interval: 60s
    lambda: |-
      std::string value = "";
      if(id(total_runtime) && !isnan(id(total_runtime).state)) {
        int seconds = (int) id(total_runtime).state;
        int years = seconds / (24 * 3600 * 365);
        seconds = seconds % (24 * 3600 * 365);
        int days = seconds / (24 * 3600);
        seconds = seconds % (24 * 3600);
        int hours = seconds / 3600;
        seconds = seconds % 3600;
        int minutes = seconds / 60;
        value = (years ? to_string(years) + "y" : "") + (days ? to_string(days) + "d" : "") +
               (hours ? to_string(hours) + "h" : "") + (minutes ? to_string(minutes) + "m" : "");
      }
      return value;

2 replies

syssi Oct 7, 2024
Maintainer

You can adapt this snippet for your needs: https://github.com/syssi/esphome-jk-bms/blob/main/yaml-snippets/esp32-ble-energy-dashboard.yaml

vpritulin Oct 7, 2024
Author

@syssi okey, thank you

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