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[ESP8266/ESP32] 基于ESPHome的3DP舱内控制系统(2): FireBeetle2+Moonraker+Fluidd Sensor

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基于 ESPHome 的 3D 打印机舱内控制系统(2): FireBeetle 2 ESP32-C6 + Moonraker Sensor + Fluidd

前言

前文配置好了开发环境，本文测试 Moonraker 的 Sensor 组件，通过 MQTT 读取 FireBeetle 2 的 DHT 温湿度传感器数据并显示到 Fluidd 网页上。

本文涉及的硬件：

DFRobor FireBeetle2 ESP32-C6 迷你开发板
DHT22 温湿度传感器
IIC OLED 单色显示屏

本文涉及的软件：

ESPHome 2024.3.2 -> 2024.4.1(写作过程中已发布新版)
Windows11 with WSL2（Debian Bookworm）

本文涉及的问题：

ESPHome 读取 DHT22 传感器数值
ESPHome 使用墨水屏、IIC OLED屏、SPI 彩色触摸屏
本地部署 MQTT Broker
Moonraker 启用 MQTT Sensor

1、读取 DHT22 温湿度传感器数据

使用 logs 终端（网页或者串口）显示读取的温度信息

sensor:
  - platform: dht
    model: DHT22
    pin:
      # Connected to GPI20(SCL) on the ESP32-C6.
      number: 20
      mode:
        input: true
        pullup: false

    temperature:
      name: "DHT Temperature"
      id: dht_temperature_sensor
      state_class: "measurement"

      # filters:
      #   - heartbeat: 1.0s

    humidity:
      name: "DHT Humidity"
      id: dht_humidity_sensor
      state_class: "measurement"

      # filters:
      #   - heartbeat: 1.0s

2、使用 OLED 单色显示屏显示温湿度信息

0.96”128x64 IIC/SPI OLED单色显示屏产品链接：https://www.dfrobot.com.cn/goods-2688.html

i2c:
  sda: 13
  scl: 14
  frequency: 400kHz

font:
  - file: '/home/pi/esphome_conf/fonts/segoeui.ttf'
  # - file: '/home/pi/esphome_conf/fonts/stxihei.ttf'
    id: font1
    size: 12
    # glyphs: 年月日思兼!"%()+,-_.:°0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz

# 板载 0.96 寸显示屏
display:
  - platform: ssd1306_i2c
    model: "SSD1306 128x64"
    address: 0x3C
    auto_clear_enabled: False
    id: my_display
    pages:
      - id: page1
        lambda: |-
          it.print(0, 10, id(font1), "This is page 1!");
      - id: page2
        lambda: |-
          // it.print(0, 10, id(font1), "This is page 2!");
          it.image(0, 0, id(my_animation), COLOR_OFF, COLOR_ON);

# 切换页面后立即刷新显示
interval:
#   - interval: 5s
#     then:
#       - display.page.show_next: my_display
#       - component.update: my_display
  - interval: 40ms
    then:
      animation.next_frame: my_animation

# 添加动画
animation:
  - file: "/home/pi/esphome_conf/imgs/tkr.gif"
    id: my_animation
#    resize: 64x32

3、使用墨水屏显示信息

这里以ESP32墨水屏开发板为例，因为我没有独立的墨水屏模块。产品链接：https://www.dfrobot.com.cn/goods-2880.html

font:
#  - file: '/home/pi/esphome_conf/fonts/segoeui.ttf'
  - file: '/home/pi/esphome_conf/fonts/stxihei.ttf'
    id: font1
    size: 24
    glyphs: 年月日思兼!"%()+,-_.:°0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz

spi:
  clk_pin: 18
  mosi_pin: 23

display:
  - platform: waveshare_epaper
    cs_pin: 5
    dc_pin: 17
    busy_pin: 4
    reset_pin: 16
    model: 2.13in-ttgo
    full_update_every: 30
    rotation: 270°
    lambda: |-
      it.print(0, 0, id(font1), "Klipper State: Printing");
      it.print(50, 25, id(font1), "demo by 思兼");
      it.print(50, 50, id(font1), " 2024年4月23日");

4、使用 SPI 彩色触摸屏显示信息(TBD)

我有一块 Arduino 用的 SPI 彩色显示触摸屏，2.4 寸 320*240 分辨率，采用 ILI9341 显示芯片 + XT2046 触摸芯片，ESPHome 也是直接支持，配置一下即可使用。配置信息：https://esphome.io/components/display/ili9xxx

5、ESPHome与Moonraker

5.1 本地部署 MQTT Broker

# 安装 MQTT Broker 的 mosquitto 实现
sudo apt update && sudo apt upgrade
sudo apt install -y mosquitto mosquitto-clients
sudo systemctl enable mosquitto.service
mosquitto -v

# 配置 mosquitto
sudo mosquitto_passwd -c /etc/mosquitto/passwd [YOUR_USERNAME]
sudo nano /etc/mosquitto/mosquitto.conf
per_listener_settings true
allow_anonymous false
listener 1883
password_file /etc/mosquitto/passwd

# 测试并启用
/usr/sbin/mosquitto -c /etc/mosquitto/mosquitto.conf
sudo systemctl restart mosquitto
sudo systemctl status mosquitto

## 更多配置选项解释
# zcat /usr/share/doc/mosquitto/examples/mosquitto.conf.gz
# The default behaviour is for this to be set to false, which maintains the
# setting behaviour from previous versions of mosquitto.
#per_listener_settings false

也可以使用 EMQX 这个开源企业级 Broker，不过我们目前用不到。

5.2 Moonraker 启用 MQTT

## moonraker.conf
[mqtt]
address: 127.0.0.1 # 设置 MQTT Broker 地址
port: 1883
username: [用户名]
password: [密码]
mqtt_protocol: v3.1.1 # v3.1, v3.1.1, and v5
enable_moonraker_api: True
instance_name: test_machine 
#   实例名称，默认为 hostname，不支持通配符如 +、# 等。
#   {instance_name}/moonraker/api/{request|response}
status_objects:
  webhooks
  # temperature_sensor host=temperature
  # 仅有变化才会push，每次检查、发布间隔约250ms
#   A newline separated list of Klipper objects whose state will be
#   published.  There are two different ways to publish the states - you
#   can use either or both depending on your need.  See the
#   "publish_split_status" options for details.
#
#   For example, this option could be set as follows:
#
#     status_objects:
#       webhooks
#       toolhead=position,print_time,homed_axes
#       extruder=temperature
#
#   In the example above, all fields of the "webhooks" object will be tracked
#   and changes will be published.  Only the "position", "print_time", and
#   "homed_axes" fields of the "toolhead" will be tracked.  Likewise, only the
#   "temperature" field of the extruder will be tracked. See the
#   "Printer Objects" section of the documentation for an overview of the most
#   common objects available.
#
#   Note that Klipper will only push an update to an object/field if the field
#   has changed.  An object with no fields that have changed will not be part
#   of the payload.  Object state is checked and published roughly every 250 ms.
#
#   If not configured then no objects will be tracked and published to
#   the klipper/status topic.
publish_split_status: False
#   Configures how to publish status updates to MQTT.
#
#   When set to False (default), all Klipper object state updates will be
#   published to a single mqtt state with the following topic:
#     {instance_name}/klipper/status
#
#   When set to True, all Klipper object state updates will be published to
#   separate mqtt topics derived from the object and item in the following
#   format:
#     {instance_name}/klipper/state/{objectname}/{statename}
#
#   The actual value of the state is published as "value" to the topic above.
#   For example, if the heater_bed temperature was 24.0, this is the payload:
#     {"eventtime": {timestamp}, "value": 24.0}
#   It would be published to this topic:
#     {instance_name}/klipper/state/heater_bed/temperature
default_qos: 0
#   QOS 等级，取值范围 0-2，默认为 0
# api_qos:
#   API topics QOS 等级，默认和 "default_qos" 相同

我们可以使用 Android 软件 MQTT Dashboard 与 Moonraker/Klipper 进行交互。不过 MQTT 更适合传感器，控制可以使用 WebSocket。

5.3 Moonraker 添加 MQTT 传感器并在 Fluidd 上显示

# 添加 sensor 组件
[sensor esp-dht11t]
type: mqtt
name: espDHT
# qos:
# MQTT QOS 等级，默认和 [mqtt] 设置相同

# state_topic: nodemcu/sensor/enclosure_temperature/state
state_topic: nodemcu/dht11
#  The mqtt topic to subscribe to for sensor state updates.  This parameter
#  must be provided.
state_response_template:
  # {set_result("temperature", payload)}
   {% set notification = payload|fromjson %}
   {set_result("temperature", notification["temperature"]|float)}
   {set_result("humidity", notification["humidity"]|float)}
#  A template used to parse the payload received with the state topic.  A
#  "payload" variable is provided the template's context. This template must
#  call the provided set_result() method to pass sensor values to Moonraker.
#  `set_result()` expects two parameters, the name of the measurement (as
#  string) and the value of the measurement (either integer or float number).
#
#  This allows for sensor that can return multiple readings (e.g. temperature/
#  humidity sensors or powermeters).
#  For example:
#    {% set notification = payload|fromjson %}
#    {set_result("temperature", notification["temperature"]|float)}
#    {set_result("humidity", notification["humidity"]|float)}
#    {set_result("pressure", notification["pressure"]|float)}
#
#  The above example assumes a json response with multiple fields in a struct
#  is received. Individual measurements are extracted from that struct, coerced
#  to a numeric format and passed to Moonraker. The default is the payload.