简介

基于该教程可以将C4002毫米波传感器添加到HomeAssistant中，并实时查看和设置传感器数据

教程

准备

接线图

C4002 ESP32-S2-DevKitC-1
VIN 5V
GND G
RX IO17
TX IO16

在ESPHome中添加新设备

  1. 在ESPHome主页点击**"NEW DEVICE"**按键

  2. 点击**"CONTINUE"**

  3. 选择**"New Device Setup"**

  4. 如果是第一次使用ESPHome需要输入**"Name"、"Network name"和"Network Password"，如果不是第一次使用是需要输入"Name"**。

  5. 选择你对所使用的开发板型号

  6. 保存设备的Encryption key，点击SKIP

  7. 点击ESPHome主页对应设备卡片的**"EDIT"**可以查看自动生成的默认程序

修改程序

将下面的程序复制到自动生成的默认程序的结尾，需要注意缩进和换行。

# UART配置
uart:
  id: uart_bus
  tx_pin: GPIO17
  rx_pin: GPIO16
  baud_rate: 115200

# External components
external_components:
  - source:
      type: git   #来源​
      url: https://github.com/cdjq/esphome.git   #必须是根目录​
      ref: dev   #分支​
    components:
      dfrobot_c4002  #组件

# C4002 组件配置
dfrobot_c4002:
  id: my_c4002

# 传感器配置部分
sensor:
  - platform: dfrobot_c4002
    c4002_id: my_c4002
    movement_distance:
      name: "Motion Distance"
      id: movement_distance_sensor  # 运动距离
    existing_distance:
      name: "Presence Distance"
      id: existing_distance_sensor  # 存在距离
    movement_speed:
      name: "Motion Speed"
      id: movement_speed_sensor
    movement_direction:
      name: "Motion Direction"
      id: movement_direction_sensor  # 运动方向
      internal: true
    target_status:
      name: "Target Status"
      id: target_status_sensor
      internal: true

text_sensor:
  - platform: template
    name: "Movement Direction"
    id: movement_direction_text
    icon: "mdi:directions"
    lambda: |-
      int d = id(movement_direction_sensor).state;
      if (d == 0) return {"Approaching"};
      else if (d == 1) return {"No Direction"};
      else if (d == 2) return {"Away"};
      else return {"未知"};
    update_interval: 1s

  - platform: template
    name: "Target Status"
    id: target_status_text
    icon: "mdi:human-greeting"
    lambda: |-
      int d = id(target_status_sensor).state;
      if (d == 0) return {"No Target"};
      else if (d == 1) return {"Static Presence"};
      else if (d == 2) return {"Motion"};
      else return {"未知"};
    update_interval: 0.5s

  - platform: dfrobot_c4002
    c4002_id: my_c4002
    c4002_text_sensor:
      name: "C4002 log"
      icon: "mdi:message-text-outline"

# 开关配置部分
switch:
  - platform: dfrobot_c4002
    switch_out_led:
      name: "Out LED Switch"
    switch_run_led:
      name: "Run LED Switch"
    switch_factory_reset:
      name: "Factory Reset"
    switch_environmental_calibration:
      name: "Sensor Calibration"

# Select 配置部分
select:
  - platform: dfrobot_c4002
    c4002_id: my_c4002
    operating_mode:
      name: "OUT Mode"
      options:
        - "Mode_1"
        - "Mode_2" 
        - "Mode_3"

# 最小和最大检测范围配置
number:
  - platform: dfrobot_c4002
    max_range:
      name: "Max detection distance"
    min_range:
      name: "Min detection distance"
    light_threshold:
      name: "Light Threshold"
    target_disappeard_delay_time:
      name: "Target Disappear Delay Time"

程序解释请参考链接

第一次下载

  1. 修改好程序后点击**"INSTALL"**

  2. 第一次下载需要选择**"Plug into this computer"，第一次收录后可以点击"Wirelessly"**通过OTA升级。

  3. 等待系统编译完成后点击**"Download project"**

  4. 点击**"Factory format (Previously Modern)"**将固件下载到本地。

  5. 将开发板接入你使用的电脑，并点击**"Open ESPHome Web"**

  6. 按如下顺序选择你的设备串口

  7. 按如下顺序选择烧录的固件并烧录

  8. 等待烧录完成即可

接入HomeAssistant

回到HomeAssistant主页，点击Settings>Devices & services可以看到你的设备信息

点击**"Add"**完成添加，可能需要输入Encryption key

点击Settings>Devices & services>ESPHome>C4002可以看到你的设备信息

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