M5 Matrix EspHome example

esphm5matrix.yaml

# M5 Atom Matrix Configuration for m5atom01 which is an M5Stack Atom Matrix
#    ESP32 Pico, 8x8 RGB LED Matrix (WS2812C), Infra-red LED, 
#    MPU6886 Inertial Sensor - 6-axis attitude sensor with 3-axis gravity accelerometer and 3-axis gyroscope

# Pins/GPIO
  #
  # === M5Stack Atom Matrix Specific ===
  # @see https://github.com/m5stack/M5Stack/blob/31be29f3f743768778accb8d5f308583ba4d3d4c/src/utility/Config.h
  # @see https://docs.m5stack.com/#/en/core/atom_matrix
  # ------ Buttons ------
  # BUTTON_PIN      | 39 | Under LED's and on side - both are the same button
  # ------ RGB LEDs PIN ------
  # RGB_PIN         | 27 | 8x8 matrix, WS2812C
  # ------ Infra-Red LED PIN ------
  # INFRA_PIN       | 12 | 
  # -------- I2C ---------
  # SDA             | 25 | 
  # SCL             | 21 |
  # 
  # MPU6886 Inertial Sensor - I2C Address 0x68
  #
  # ---- Exposed Ports ----
  # -- | 3V3 | 5-pin connector pin 1
  # 19 | Tx  | 5-pin connector pin 3
  # 22 | Rx  | 5-pin connector pin 2
  # 23 | Neo | 5-pin connector pin 4 (Connected to 34 via 100ohm resistor?)
  # 33 | Adc | 5-pin connector pin 5
  #
  # 21 | SCL | 4-pin connector pin 1
  # 25 | SDA | 4-pin connector pin 2
  # -- | 5V  | 4-pin connector pin 3
  # -- | Gnd | 4-pin connector pin 4
  #
  # -- | Gnd | Grove connector pin 1
  # -- | 5V  | Grove connector pin 2
  # 26 |     | Grove connector pin 3
  # 32 |     | Grove connector pin 4
  #
#

substitutions:
  devicename: esphm5matrix01
  upper_devicename: esphM5Matrix01
  
esphome:
  name: ${devicename}

esp32:
  board: m5stack-atom
  framework:
    type: arduino

# Enable logging
logger:

# Enable Home Assistant API
api:

ota:

web_server:
  port: 80

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: ${upper_devicename}
    password: !secret ap_password

captive_portal:
    
# Define I2C interface
i2c:
  sda: 25
  scl: 21
  scan: true

binary_sensor:
  - platform: gpio # btn
    id: button
    name: "$upper_devicename Button"
    pin:
      number: 39
      inverted: true

light:
  - platform: neopixelbus
    name: "$upper_devicename 5x5 Matrix"
    id: matrix_light  
    variant: WS2812
    pin: 27
    num_leds: 25
    type: GRB
    color_correct: [50%, 50%, 50%] # The LED's on the Atom Matrix should not be run at full power
    effects:
      - addressable_rainbow:
          name: "Rainbow"
      - strobe:
          name: "Strobe"
          colors:
            - state: true
              brightness: 50%
              red: 100%
              green: 90%
              blue: 0%
              duration: 500ms
            - state: false
              duration: 250ms
            - state: true
              brightness: 50%
              red: 0%
              green: 100%
              blue: 0%
              duration: 500ms

sensor:
  - platform: adc
    pin: 
      number: 32
    id: battery
    name: "$upper_devicename Battery"
    update_interval: 5s
    attenuation: 11db
    device_class: battery
    unit_of_measurement: '%'
    accuracy_decimals: 0
    filters:
      - calibrate_linear:
         method: least_squares
         datapoints:
          - 0.14200 -> 0
          - 3.14500 -> 100
      - lambda: return 100 - x;