Sending special language characters to the Nextion display

[doczi1123]

Hello!
Nextion display, how can I send accented characters?
The code is in the firmware of an 8266.
The current code is displayed on the screen as follows:
The code:

display:
- platform: nextion
id: disp
lambda: |-
auto time = id(ido).now();
it.set_component_text_printf("t0", "%d:%.2d", time.hour,time.minute);
it.set_component_text_printf("t4", "%d:%.2d:%.2d", time.year,time.month,time.day_of_month);
it.set_component_text_printf("t1", "Hőm: %.1f °C", id(terasz_hom).state);
it.set_component_text_printf("t2", "Pára: %.1f %%", id(terasz_para).state);
it.set_component_text_printf("t3", "Elem: %.0f %%", id(terasz_elem).state);

---

I tried this too, but it didn’t work:
the ttf file is copied to the fonts folder

font:
  - file: 'fonts/Roboto-ThinItalic.ttf'
    id: font2
    glyphs: ['&', '@', '!', ',', '.', '"', '%', '(', ')', '+', '-', '_', ':', '°', '0',
    '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'Á', 'B', 'C', 'D', 'E',
    'F', 'G', 'H', 'I', 'Í', 'J', 'K', 'L', 'M', 'N', 'O', 'Ó', 'Ö', 'Ő', 'P', 'Q', 'R', 'S', 'É',
    'T', 'U', 'Ú', 'Ü', 'Ű', 'V', 'W', 'X', 'Y', 'Z', ' ', 'a', 'b', 'c', 'd', 'e', 'f',
    'g', 'h', 'i', 'í', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't',
    'u', 'v', 'w', 'x', 'y', 'z','á', 'é', 'ö', 'ő', 'ü', 'ű', 'ó', '/']

[Yves_IF (Yves)]

+1

I have the same problem and I can’t solve it either. I tried using a sensor template that should change the special characters to hex (in HA not in ESPhome):

   - platform: template
     sensors:
       rooms_with_open_windows_v_nextion_02: 
         friendly_name: 'rooms_with_open_windows_v_nextion_02'
         value_template: >
           {{ states('sensor.rooms_with_open_windows') | replace("Ä", "\xC4",1) | replace("Ö", "\xD6") | replace("Ü", "\xDC", 1) | replace("ä", "\xE1",1) | replace("ö", "\xEF") | replace("ü", "\xF5", 1) | replace("°", "\xDF") | replace("ß", "\xE2", 1) | replace("µ", "\xE4", 1) | replace("€", "Euro") | replace("à", "\xE0", 1) | replace("á", "\xE1", 1)}}

---

In the template editor the change works fine:

---

And this is my settings in ESPHome:

text_sensor:
  - platform: homeassistant
    id: fenster
    entity_id: sensor.rooms_with_open_windows_v_nextion
    on_value:
      then:
        - lambda: 'id(disp1).set_component_text_printf("t0", id(fenster).state.c_str());'

---

But not on the Nextion display:

[Hellis81]

As I recall it, each don’t in nextion display has a set of characters you can use.
If the character you try to display is not in the list then it won’t work.

Look at the font characters in nextion editor

[Yves_IF (Yves)]

Thanks for the reply @Hellis81. On the Nextion side everything seems to be working.
When I use this code in ESPhome it works as I expect:

text_sensor:
  - platform: homeassistant
    id: fenster
    entity_id: sensor.rooms_with_open_windows_v_nextion
    on_value:
      then:
        - lambda: 'id(disp1).set_component_text_printf("t0", "B""\xFC""ro"); '

So it basically works with the HEX code. But the error seems to be with the sensor templating. HA converts the HEX code “\xFC” back into a string (into a “ü”).

[belkop-ghb (Pepe)]

Same problem was here. I wanted to display localized weekday from a sensor:

Nextion project configured as ISO8859-2, used font also ISO8859-2.

Problematical character:

Used in ESPHome with code \x161 did not help:

The code compiled with a warning and the character hasn’t been displayed correctly.

Using unicode helped with compilation, but the character hasn’t been displayed correctly either:

What helped? Using UTF-8 font in the Nextion project. UTF-8 font with all characters is huge, so I’ve listed all characters I will be using (ASCII + some special characters). In ESPHome, no character conversion or codes are needed:

And the special character is displayed correctly. Finally