matrix.yaml

substitutions:
  xscrollpadding: "4" # in pix

esphome:
  name: matrix
  platform: esp8266
  board: nodemcu

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

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "esp12-rgb Fallback Hotspot"
    password: !secret fallback_password

captive_portal:

# Enable web server
web_server:
  port: 80
  auth:
    username: !secret web_server_user
    password: !secret web_server_password

# Enable logging
logger:

# Enable Home Assistant API
api:
  encryption:
    key: !secret hass_key

ota:
  password: !secret hass_password

mqtt:
  id: mqtt_client
  broker: !secret mqtt_broker
  username: !secret mqtt_user
  password: !secret mqtt_password

text_sensor:
  - platform: mqtt_subscribe
    name: "Text"
    id: matrixtext
    topic: matrix/text
  - platform: mqtt_subscribe
    name: "Color"
    id: matrixcolor
    topic: matrix/color

font:
  - id: tinyfont
    file: "DejaVuSans-Bold.ttf"
    size: 9
    glyphs: '♡Ωäöüß!"%()+,-_.:*=°?~#0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz'

# GPIO4 (D02)
light:
  - platform: fastled_clockless
    chipset: WS2812B
    pin: GPIO4
    num_leds: 64
    rgb_order: GRB
    name: "led_matrix"
    id: led_matrix
    default_transition_length: 0s
    color_correct: [50%, 50%, 50%]
    restore_mode: ALWAYS_ON
    effects:
      - addressable_random_twinkle:
      - addressable_random_twinkle:
          name: Random Twinkle Effect With Custom Values
          twinkle_probability: 5%
          progress_interval: 32ms
sensor:
  - platform: homeassistant
    id: hred
    entity_id: light.led_matrix
    attribute: red
  - platform: homeassistant
    id: hgreen
    entity_id: light.led_matrix
    attribute: green
  - platform: homeassistant
    id: hblue
    entity_id: light.led_matrix
    attribute: blue

display:
  - platform: addressable_light
    id: led_matrix_display
    addressable_light_id: led_matrix
    width: 8
    height: 8
    rotation: 270°
    update_interval: 200ms
    lambda: |-
      static uint16_t xpos = 0;
      const char * text = id(matrixtext).state.c_str();
      const char * color = id(matrixcolor).state.c_str();

      int x_start, y_start;
      int width, height;
          
      it.get_text_bounds(0, 0, text, id(tinyfont), 
          TextAlign::TOP_LEFT, &x_start, &y_start, &width, &height); 

      it.print(-(xpos % (width + $xscrollpadding)), -2, 
        id(tinyfont), Color(uint32_t(color)), 
        TextAlign::TOP_LEFT, text); 
      xpos++;