lcd-notification-esphome.yaml

esphome:
  name: lcd-notification
  on_boot:
    priority: -100.0
    then:
      - lambda: 'id(mydisplay).no_backlight();'
      
esp8266:
  board: d1_mini

# Enable logging
logger:

# Enable Home Assistant API
api:

ota:

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

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Lcd-Notification-Display"

captive_portal:

i2c:
  sda: D4
  scl: D3

time:
- platform: sntp
  id: my_time

text_sensor:
  # Create text input helper in homeassistant and enter id below
  - platform: homeassistant
    entity_id: input_text.tekst_lcd_display
    id: lcd_text
  - platform: homeassistant
    entity_id: input_text.tekst_lcd_display2
    id: lcd_text2
    

  - platform: wifi_info
    ip_address:
      id: ip_address
      name: IP address
    mac_address:
      id: mac_address
      name: Mac address
    ssid:
      id: connected_ssid
      name: Network SSID
    bssid:
      id: connected_
      name: Network Mac

sensor:
  - platform: wifi_signal
    id: wifisignal
    name: wifi-signal
    update_interval: 300s
  - platform: homeassistant
    id: inside_temperature
    entity_id: sensor.living_room_temperature_bmp180
    internal: true
  - platform: homeassistant
    id: outside_temperature
    entity_id: sensor.temperatuur_voor_temperature
    internal: true  

globals:
  - id: achtergrondlicht_aan
    type: bool
    initial_value: 'false'
  - id: knipperlicht_aan
    type: bool
    initial_value: 'false'
  - id: page
    type: int
    initial_value: "1"    

switch:
  - platform: template
    name: "Achtergrondlicht"
    id: achtergrondlicht
    restore_state: false
    turn_on_action:
      - globals.set:
          id: achtergrondlicht_aan
          value: 'true'
      - globals.set:
          id: knipperlicht_aan
          value: 'false'
      - lambda: |-
          id(mydisplay).backlight();
      - delay: 5s
      
    turn_off_action:
      - globals.set:
          id: achtergrondlicht_aan
          value: 'false'
      - lambda: |-
            id(mydisplay).no_backlight();
    lambda: |-
      return id(achtergrondlicht_aan);

  - platform: template
    name: "Knipperlicht"
    id: knipperlicht
    restore_state: false
    turn_on_action:
      - globals.set:
          id: knipperlicht_aan
          value: 'true'
      - globals.set:
          id: achtergrondlicht_aan
          value: 'false'
      - lambda: |-
          id(mydisplay).backlight();
      - delay: 0.75s
      - lambda: |-
          id(mydisplay).no_backlight();
      - delay: 0.75s
      - lambda: |-
          id(mydisplay).backlight();
      - delay: 0.75s
      - lambda: |-
          id(mydisplay).no_backlight();
      - delay: 0.75s
      - lambda: |-
          id(mydisplay).backlight();
    turn_off_action:
      - globals.set:
          id: knipperlicht_aan
          value: 'false'
      - lambda: |-
            id(mydisplay).no_backlight();
    lambda: |-
      return id(knipperlicht_aan);

display:
  - platform: lcd_pcf8574
    id: mydisplay
    dimensions: 16x2
    address: 0x27
    lambda: |-
          switch (id(page)){
            case 1:
              it.strftime(0, 0, "%H:%M", id(my_time).now());
              it.strftime(0, 1, "%d-%m-%y", id(my_time).now());
              break;
            case 2: 
              it.print(0, 0, id(lcd_text).state.c_str());
              break;
            case 3: 
          // Print inside temperature (from homeassistant sensor)
            if (id(inside_temperature).has_state()) {
              it.printf(0, 0, "In %.1fC", id(inside_temperature).state);
          }
          // Print outside temperature (from homeassistant sensor)
          if (id(outside_temperature).has_state()) {
            it.printf(0, 1, "Out %.1fC", id(outside_temperature).state);
          break; 
          }
            case 4:     
              it.print(0, 0, id(lcd_text2).state.c_str());
              break;
          }
interval:
- interval: 30s
  then:
    - lambda: |-
        id(page) = (id(page) + 1);
        if (id(page) > 4) {
          id(page) = 1;
        }