Station-Bat ESPHome 集成

Station-Bat 的 ESPHome 集成包含电源管理、传感器、按键、显示和 RTC 组件。

1. 设备简介

项目	信息
产品名称	Station-Bat
SKU	K124-B
主要功能	电源与电池管理、姿态与电流监测、按键、显示和 RTC
通信接口	I2C、SPI、GPIO
ESPHome 组件	`m5station_axp192`（外部组件）、`mpu6886`、`ina3221`、`binary_sensor.gpio`、`bm8563`、`esp32_rmt_led_strip`、`st7789v`
ESPHome 版本要求	/

2. 组件说明

AXP192 外部组件

Station-Bat 使用 M5Stack m5station_axp192 外部组件读取电池电量并控制 LCD 供电：

external_components:
  - source: github://m5stack/esphome-yaml/components
    components: [m5station_axp192]
    refresh: 0s 

IMU、电源与端口测量

MPU6886 使用官方 MPU6886 Platform；两颗 INA3221 分别使用地址 0x40 和 0x41，覆盖 6 路端口电压与电流。m5station_axp192 外部 Platform 提供电池电量：

i2c:
  - id: i2c_bus
    sda: GPIO21
    scl: GPIO22

sensor:
  - platform: mpu6886
    i2c_id: i2c_bus
    accel_x:
      name: "MPU6886 Accel X"
      id: imu_ax
    accel_y:
      name: "MPU6886 Accel Y"
      id: imu_ay
    accel_z:
      name: "MPU6886 Accel z"
      id: imu_az
    gyro_x:
      name: "MPU6886 Gyro X"
    gyro_y:
      name: "MPU6886 Gyro Y"
    gyro_z:
      name: "MPU6886 Gyro z"
    temperature:
      name: "MPU6886 Temperature"
      id: imu_temp
    update_interval: 5s

  - platform: m5station_axp192
    id: pmu
    i2c_id: i2c_bus
    battery_level:
      name: "M5Station Battery Level"
      id: bat_level
    update_interval: 60s
    brightness: 0.8

  - platform: ina3221
    id: ina1
    i2c_id: i2c_bus
    address: 0x40
    update_interval: 1s
    channel_1:
      shunt_resistance: 0.01
      bus_voltage:
        name: "P.A1 Bus Voltage"
        id: v_a1
      current:
        name: "P.A1 Current"
        id: i_a1
    channel_2:
      shunt_resistance: 0.01
      bus_voltage:
        name: "P.A2 Bus Voltage"
        id: v_a2
      current:
        name: "P.A2 Current"
        id: i_a2
    channel_3:
      shunt_resistance: 0.01
      bus_voltage:
        name: "P.B1 Bus Voltage"
        id: v_b1
      current:
        name: "P.B1 Current"
        id: i_b1

  - platform: ina3221
    id: ina2
    i2c_id: i2c_bus
    address: 0x41
    update_interval: 1s
    channel_1:
      shunt_resistance: 0.01
      bus_voltage:
        name: "P.B2 Bus Voltage"
        id: v_b2
      current:
        name: "P.B2 Current"
        id: i_b2
    channel_2:
      shunt_resistance: 0.01
      bus_voltage:
        name: "P.C1 Bus Voltage"
        id: v_c1
      current:
        name: "P.C1 Current"
        id: i_c1
    channel_3:
      shunt_resistance: 0.01
      bus_voltage:
        name: "P.C2 Bus Voltage"
        id: v_c2
      current:
        name: "P.C2 Current"
        id: i_c2 

按键输入

三颗面板按键使用 GPIO Binary Sensor Platform，分别连接 GPIO37、GPIO38 和 GPIO39：

binary_sensor:
  - platform: gpio
    name: "Button1"
    pin:
      number: GPIO37
      inverted: true
  - platform: gpio
    name: "Button2"
    pin:
      number: GPIO38
      inverted: true
  - platform: gpio
    name: "Button3"
    pin:
      number: GPIO39
      inverted: true 

LCD 与 USB 供电控制

LCD 供电通过 m5station_axp192 组件控制，USB 输出由 GPIO12 控制：

switch:
  - platform: template
    name: "LCD Backlight"
    id: lcd_backlight
    lambda: |-
      return true;
    restore_mode: ALWAYS_ON
    turn_on_action:
      - lambda: |-
          id(pmu).set_backlight(true);
    turn_off_action:
      - lambda: |-
          id(pmu).set_backlight(false);

  - platform: gpio
    name: "USB Power"
    id: usb_power
    pin: GPIO12 

RTC

板载 RTC 使用官方 BM8563 Platform。设备启动时先读取 RTC，Home Assistant 完成时间同步后再写回 RTC：

time:
  - platform: bm8563
    id: bm8563_time
    update_interval: never
  - platform: homeassistant
    on_time_sync:
      then:
        - bm8563.write_time: 

RGB LED

7 颗板载 WS2812 RGB LED 使用 ESP32 RMT LED Strip Platform，通过 GPIO4 驱动：

light:
  - platform: esp32_rmt_led_strip
    rgb_order: GRB
    pin: GPIO4
    num_leds: 7
    chipset: ws2812
    name: "My Light" 

LCD 显示

1.14 英寸 IPS 屏幕使用 ST7789V Platform。最小示例仅输出固定文字：

spi:
  clk_pin: GPIO18
  mosi_pin: GPIO23

font:
  - file: "gfonts://Roboto"
    id: display_font
    size: 18

display:
  - platform: st7789v
    model: CUSTOM
    width: 135
    height: 240
    offset_height: 52
    offset_width: 40
    cs_pin: GPIO5
    dc_pin: GPIO19
    reset_pin: GPIO15
    rotation: 90
    update_interval: 1s
    lambda: |-
      it.print(0, 0, id(display_font), "Station-Bat"); 