ESPHome config for connected ESP8266 to MAX7219 Dot-Matrix Display to show useful information from HomeAssistant

esphome_dotmatrix_display.yaml

esphome:
  name: veneer_display
  platform: ESP8266
  board: d1_mini

wifi:
  networks:
  - ssid: !secret esphome_wifi_ssid1
    password: !secret esphome_wifi_pass1
  # - ssid: !secret esphome_wifi_ssid2
  #   password: !secret esphome_wifi_pass2

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Veneer Display Fallback Hotspot"
    password: !secret esphome_fb_wifi_pass

web_server:
  port: 80

captive_portal:

# Enable logging
logger:

# Enable Home Assistant API
api:
  password: !secret esphome_haapi_pass

ota:
  password: !secret esphome_ota_pass

mqtt:
  broker: !secret mqtt_broker
  username: !secret mqttuser
  password: !secret mqttpass

time:
  - platform: homeassistant
    id: homeassistant_time

spi:
  clk_pin: D5
  mosi_pin: D7

display:
  - platform: max7219digit
    id: display_max
    cs_pin: D8
    num_chips: 8
    intensity: 3
    scroll_speed: 100ms
    update_interval: 100ms
    lambda: |-
      if(id(power_on_off).state) {
        it.printf(0, 0, id(digit_font), TextAlign::TOP_LEFT, "%s", id(hatxt).state.c_str());
        it.intensity(atoi(id(habri).state.c_str()));
        it.scroll_left();
      }

binary_sensor:
  - platform: template
    name: "Power State"
    id: power_on_off
    internal: true

switch:
  - platform: template
    name: "Veneer Display Power Switch"
    icon: mdi:dots-grid
    optimistic: true
    restore_state: yes
    turn_on_action:
      - binary_sensor.template.publish:
          id: power_on_off
          state: ON
    turn_off_action:
      - binary_sensor.template.publish:
          id: power_on_off
          state: OFF

font:
  - file: "pixelmix.ttf"
    id: digit_font
    size: 8
    glyphs:
    - ' '
    - '@'
    - '*'
    - '!'
    - '"'
    - '%'
    - (
    - )
    - +
    - ','
    - '-'
    - .
    - '0'
    - '1'
    - '2'
    - '3'
    - '4'
    - '5'
    - '6'
    - '7'
    - '8'
    - '9'
    - ':'
    - A
    - B
    - C
    - D
    - E
    - F
    - G
    - H
    - I
    - J
    - K
    - L
    - M
    - N
    - O
    - P
    - Q
    - R
    - S
    - T
    - U
    - V
    - W
    - X
    - Y
    - Z
    - _
    - a
    - b
    - c
    - d
    - e
    - f
    - g
    - h
    - i
    - j
    - k
    - l
    - m
    - n
    - o
    - p
    - q
    - r
    - s
    - t
    - u
    - v
    - w
    - x
    - y
    - z
    - °

text_sensor:
  - platform: wifi_info
    ip_address:
      name: "Veneer Display IP Address"
    ssid:
      name: "Veneer Display Connected SSID"
    bssid:
      name: "Veneer Display Connected BSSID"
  - platform: homeassistant
    name: "HA Txt"
    id: hatxt
    entity_id: input_text.venner_text
  - platform: homeassistant
    name: "HA Brightness"
    id: habri
    entity_id: input_number.venner_bri
    
sensor:
  - platform: wifi_signal
    name: "Veneer Display WiFi Signal Sensor"
    update_interval: 60s
  - platform: uptime
    name: "Veneer Display Uptime Sensor"
  - platform: adc
    id: adc_val
    pin: A0
    name: "Veneer Display Brightness"
    update_interval: 60s
    unit_of_measurement: "adc"
    filters:
      - multiply: 3.3
      - calibrate_linear:
          - 0.0 -> 0.0
          - 3.3 -> 15

And write in Cyrillic?

How can i create a switch ti Power on/off???

How can i create a switch ti Power on/off???

https://esphome.io/components/display/max7219digit.html?highlight=max7219digit#screen-on-off

But It Will create a swivh in home assistant or Will Active a service? Il mer 7 apr 2021, 21:25 Debashish Sahu ***@***.***> ha scritto:

…

***@***.**** commented on this gist. ------------------------------ How can i create a switch ti Power on/off??? https://esphome.io/components/display/max7219digit.html?highlight=max7219digit#screen-on-off — You are receiving this because you commented. Reply to this email directly, view it on GitHub <https://gist.github.com/0ad5e1de664763e84994cc3a4a5d5dc0#gistcomment-3697196>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ALVET7IRYADREIGZU3B55TTTHSWSBANCNFSM42C3UHNQ> .

But It Will create a swivh in home assistant or Will Active a service? Il mer 7 apr 2021, 21:25 Debashish Sahu @.> ha scritto:
…
@.* commented on this gist. ------------------------------ How can i create a switch ti Power on/off??? https://esphome.io/components/display/max7219digit.html?highlight=max7219digit#screen-on-off — You are receiving this because you commented. Reply to this email directly, view it on GitHub https://gist.github.com/0ad5e1de664763e84994cc3a4a5d5dc0#gistcomment-3697196, or unsubscribe https://github.com/notifications/unsubscribe-auth/ALVET7IRYADREIGZU3B55TTTHSWSBANCNFSM42C3UHNQ .

Easiest way is to create a Home Assistant Template Switch that sets brightness of the display to 0 on off and 7 for ON.

Got everything working but I can not get how to get on and off switch

@osfersa @hdjweb Added new version of the code that has power switch on it.

Yes, I just compiled everything again, and works great, Thank you so much.

hello and thanks for the wonderful job, I can't send any command from the home assistant for example I would like to adjust the brightness via mqtt but I can't, does anyone have any examples?

is it possible to display symbols?