信息灯带

使用 Neopixel (WS2812B) 灯带显示传感器状态的当前状态是一种向用户传达状态的简单方式。与仪表板屏幕相比，信息灯带只能像二进制传感器一样传达信息。

颜色（例如，红色 = 错误/警告，橙色 = 警告，绿色 = 正常，蓝色 = 激活）
亮度（关闭、缩放亮度）
模式（常亮 vs. 闪烁，不建议使用闪烁或频闪）
灯带上的灯位置

Wemos D1 mini、Neopixel、CO2 传感器安装在黑板上，像素含义由粉笔绘制的图标描述。

ESPHome 配置

uart:
  rx_pin: GPIOXX
  tx_pin: GPIOXX
  baud_rate: 9600

sensor:
  - platform: mhz19
    co2:
      name: "MH-Z19 CO2 值"
    temperature:
      name: "MH-Z19 温度"
    update_interval: 30s

# 监控 WiFi 连接状态
binary_sensor:
  - platform: status
    name: "信息灯带状态"

# 将每个像素配置为单独的灯（注意消耗内存）
light:
  - platform: fastled_clockless
    chipset: WS2812B
    id: light_fastled
    pin: GPIOXX
    num_leds: 4
    rgb_order: GRB
    name: "信息灯带"
    effects:
      - strobe:
      - random:
  - platform: partition
    name: "PL0"
    segments:
      - id: light_fastled
          from: 0
          to: 0
    effects:
      - strobe:
  - platform: partition
    name: "PL1"
    segments:
      - id: light_fastled
          from: 1
          to: 1
    effects:
      - strobe:
  - platform: partition
    name: "PL2"
    segments:
      - id: light_fastled
          from: 2
          to: 2
    effects:
      - strobe:
  - platform: partition
    name: "PL3"
    segments:
      - id: light_fastled
          from: 3
          to: 3
    effects:
      - strobe:

WARNING

请考虑分区中关于内存使用增加的警告。

Home Assistant 配置

显示 CO2 警告灯的自动化（例如 CO2 > 1000 ppm 时显示红色）是在 Home Assistant 中完成的，但也可以使用 ESPHome 自动化实现。

# 用相关颜色打开灯
automation:
- id: '1601241280015'
  alias: CO2 警告灯打开
  description: ''
  trigger:
    - platform: numeric_state
      entity_id: sensor.mh_z19_co2_value
      above: 1000
  condition: []
  action:
    - action: light.turn_on
      data:
      color_name: red
      entity_id: light.pl2
  mode: single
- id: '1601241280016'
  alias: CO2 警告灯关闭
  description: ''
  trigger:
    - platform: numeric_state
      entity_id: sensor.mh_z19_co2_value
      below: 800
  condition: []
  action:
    - action: light.turn_off
      entity_id: light.pl2
      mode: single
- alias: "状态灯映射"
  trigger:
  platform: time_pattern
  # 您也可以按间隔匹配。这将每 5 分钟匹配一次
  minutes: "/5"
  action:
    - action: light.turn_on
      data_template:
      entity_id: light.pl1
      brightness_pct: 30
      color_name: >
          {% set map = {'on': 'green', 'off': 'red'} %}
          {% set state = states('binary_sensor.bad_status') %}
          {{ map[state] if state in map else 'white' }}

信息灯带

ESPHome 配置

Home Assistant 配置

另请参阅