esp8266-seplos-v3-example-multiple-battery-banks.yaml

substitutions:
  name: seplos-bms
  battery_bank0: "${name} bank 0"
  battery_bank1: "${name} bank 1"
  battery_bank2: "${name} bank 2"
  device_description: "Monitor and control multiple Seplos V3 BMS via RS485 (Modbus)"
  tx_pin: GPIO16
  rx_pin: GPIO17

esphome:
  name: ${name}
  comment: ${device_description}
  min_version: 2024.6.0
  project:
    name: "syssi.esphome-seplos-bms"
    version: 1.2.0

esp32:
  board: wemos_d1_mini32
  framework:
    type: esp-idf

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

ota:
  platform: esphome

logger:
  level: DEBUG

# If you use Home Assistant please remove this `mqtt` section and uncomment the `api` component!
# The native API has many advantages over MQTT: https://esphome.io/components/api.html#advantages-over-mqtt
mqtt:
  broker: !secret mqtt_host
  username: !secret mqtt_username
  password: !secret mqtt_password
  id: mqtt_client

# api:

uart:
  - id: uart_0
    baud_rate: 19200
    tx_pin: ${tx_pin}
    rx_pin: ${rx_pin}
    debug:
      direction: BOTH
      dummy_receiver: false

modbus:
  - id: modbus0
    uart_id: uart_0
    send_wait_time: 200ms

modbus_controller:
  - id: bms0
    address: 0x00
    modbus_id: modbus0
    command_throttle: 200ms
    update_interval: 10s
  - id: bms1
    address: 0x01
    modbus_id: modbus0
    command_throttle: 200ms
    update_interval: 10s
  - id: bms2
    address: 0x02
    modbus_id: modbus0
    command_throttle: 200ms
    update_interval: 10s

sensor:
  - platform: modbus_controller
    modbus_controller_id: bms0
    name: "${battery_bank0} total voltage"
    address: 0x1000
    register_type: read
    value_type: U_WORD
    unit_of_measurement: "V"
    device_class: voltage
    state_class: measurement
    accuracy_decimals: 2
    filters:
      - multiply: 0.01

  - platform: modbus_controller
    modbus_controller_id: bms1
    name: "${battery_bank1} total voltage"
    address: 0x1000
    register_type: read
    value_type: U_WORD
    unit_of_measurement: "V"
    device_class: voltage
    state_class: measurement
    accuracy_decimals: 2
    filters:
      - multiply: 0.01

  - platform: modbus_controller
    modbus_controller_id: bms2
    name: "${battery_bank2} total voltage"
    address: 0x1000
    register_type: read
    value_type: U_WORD
    unit_of_measurement: "V"
    device_class: voltage
    state_class: measurement
    accuracy_decimals: 2
    filters:
      - multiply: 0.01