Project Logs

Collapse

• Basic Functions

  Dan Maloney • 01/05/2024 at 19:55 • 0 comments

  I can't think of any organized way to walk through what I did to get to the point I am right now, so I'm just going to put the YAML here and let the comments speak for themselves. I wish the syntax highlighting was nicer, but there it is.

  Based on the YAML I found for the M5StickC Plus on the ESPHome devices page:
  

  substitutions:
    devicename: test-dongle
    upper_devicename: DONGLE TESTING
  
  esphome:
    name: $devicename
    platform: ESP32
    board: m5stick-c    #there are only a few options, and this is the closest
    platformio_options:
      upload_speed: 115200
  
  wifi:
    ssid: !secret wifi_ssid
    password: !secret wifi_password
    
    ap:
      ssid: $devicename Fallback Hotspot
      password: !secret wifi_password
  
  captive_portal:
  
  # Enable logging
  logger:
  
  # Enable Home Assistant API
  api:
    encryption:
      key: "<redacted>"
  
  ota:
    password: "<redacted>"
  
  # The older version of this dongle has an AWP192 power management chip, so
  # the YAML I started with had support for reading the battery voltage 
  # from the PM chip. The AWP192 was also needed to turrn the LCD backlight
  # on for some reason. The PLUS2 stick doesn't have a power management chip,
  # so we just read the battery voltage from the ADC on GPIO38 (got that
  # little tidbit from diving into the schematic.)
  sensor:
    - platform: adc
      pin: GPIO38                # ADC1_CH2
      attenuation: 11db          # because reasons?  
      update_interval: 60s
      name: "Battery Voltage"
      filters:
        - multiply: 2.0          # Schematic shows a voltage divider with
                                 # two 100k resistors feeding GPIO38, so
                                 # we multiply by two. Seems to be giving
                                 # accurate readings -- or at least reasonable  
  
  # Built-in 6-axis intertial measurement unit (IMU) that also includes a temperature sensor
  # Pretty much just pulled this from the ESPHome docs, seems to work well
    - platform: mpu6886
      i2c_id: bus_a
      address: 0x68
      update_interval: 10s
      accel_x:
        name: "MPU6886 Accel X"
      accel_y:
        name: "MPU6886 Accel Y"
      accel_z:
        name: "MPU6886 Accel z"
      gyro_x:
        name: "MPU6886 Gyro X"
      gyro_y:
        name: "MPU6886 Gyro Y"
      gyro_z:
        name: "MPU6886 Gyro z"
      temperature:
        name: "MPU6886 Temperature"
  
  # Button setup. The dongle has three buttons, this code does useful(ish)
  # things with them:
  #        Button A (big one on front): Turns off LCD backlight while pressed
  #        Button B (small one on side): Sounds 1000Hz tone while pressed
  #        Button C (other small one): Supposed to turn off the internal LED, 
  #                                    but doesn't work
  binary_sensor:
    - platform: gpio
      pin:
        number: GPIO37
        inverted: true
      name: ${upper_devicename} Button A
      on_press:
        then:
          - light.turn_on: display_bl
      on_release:
        then:
          - light.turn_off: display_bl
  
    - platform: gpio
      pin:
        number: GPIO39
        inverted: true
      name: ${upper_devicename} Button B
      on_press:
        then:
          #- light.turn_on: led1
          - output.turn_on: buzzer
          - output.ledc.set_frequency:
              id: buzzer
              frequency: "1000Hz"
          - output.set_level:
              id: buzzer
              level: "50%"     
  
      on_release:
        then:
          #- light.turn_off: led1
          - output.turn_off: buzzer
    
    - platform: gpio
      pin:
        number: GPIO35
        inverted: true
      name: ${upper_devicename} Button C
      on_press:
        then:
          - light.turn_on: led1
      on_release:
        then:
          - light.turn_off: led1
  
  # Built-in LED is on GPIO19. The IR LED is also on the same GPIO. One or 
  # both of them get VERY hot while LEDs are on.
  light:
    - platform: monochromatic
      output:  builtin_led
      name: ${upper_devicename} Led
      id: led1
  
    - platform: monochromatic
      output:  backlight
      name: ${upper_devicename} Backlight
      id: display_bl    
  output:
    - platform: ledc
      pin: 19
      inverted: true
      id: builtin_led
  
    - platform: ledc        # Buzzer is connected to GPIO2, and we 
      pin:...

  Read more »

View project log