display latin characters in 128x64 display with u8g lib

Other Hardware Displays
1

hello. Does anybody know how to display latin characters like "Ñ" or letters with accents "camión"?
I'm using u8g lib and Arduino Due with st7920 display, and I like to build a reader rss, but i can't correctly display news in Spanish, I've tried it with a bunch of fonts, but they all look like ANSI, and the correct Latin characters are in extended ascii fonts. I use drawStr and u8g.print, and nothing, but in the serial monitor the text is displayed correctly...

What can I do? What's wrong? :o

Thank's a lot!

Juanan

2

You're going to have to have either a larger font array, or a means of applying the diacritics to the existing font.

3

I have no idea :sob: :sob: :sob: , and about fonts I have tried several sizes, which include the Latin characters, but they are not displayed correctly in the display,
I'm completely lost :sob: :sob:

4

I'm trying to solve the same issue and have gotten past the first hurdle. I'm displaying the correct characters in a menu I'm coding, but stuff is being added on the ends of the lines.

Here's my code:

// Menu and state variables
#define ZERO 0
#define MAIN_SCREEN 1
#define MENU 2
#define PAIRING 3
#define TRACKING 4
#define NOTICE 5

// Display strings for above constants
char vilolage[9] = {0x56, 0x69, 0x6C, 0x6F, 0x6C, 0xE4, 0x67, 0x65, 0x20};
char sluta_spara[11] = {0x53, 0x6C, 0x75, 0x74, 0x61, 0x20, 0x73, 0x70, 0xE5, 0x72, 0x61};
char borja_spara[11] = {0x42, 0xF6, 0x72, 0x6A, 0x61, 0x20, 0x73, 0x70, 0xE5, 0x72, 0x61};
char* MenuStrings[] = {
  vilolage, // ZERO 0
  "Tillbaka", // MAIN_SCREEN 1
  "Meny", // MENU 2
  "Koppla enhet", // PAIRING 3
  hasTarget ? sluta_spara : borja_spara, // TRACKING 4
  "Skicka notis", // NOTICE 5
};

// Items and order of menu
int MenuItems[] = {
  MAIN_SCREEN, // Return to main screen
  PAIRING, // Try to pair with another device
  TRACKING, // Start tracking a paired device
  NOTICE, // Send notice to a paired device
  ZERO // Go to sleep mode
};
#define MenuLength sizeof(MenuItems) / sizeof(int)


// The rendering of the menu:
void drawMenu() {
  for (int i = 0; i < MenuLength; i++) {
    u8g.drawStr( charWidth*2, (charHeight+1)*(i+1), MenuStrings[MenuItems[i]]);
  }
  u8g.drawStr( 0, (charHeight+1)*(currentMenuOption+1), ">");
}

As you can see in the attached photo, the contents of borja_spara is added after vilolage. Some memory leakage, I'm guessing.

I'll try to add more here when I've solved this.

IMG_0948.JPG
IMG_0948.JPG4032×3024 1.47 MB

5

So my simple issue was that I forgot to terminate the char arrays. Basic gotcha.

// Display strings for above constants
const char vilolage[] = {'V', 'i', 'l', 'o', 'l', 0xE4, 'g', 'e', 0};
const char sluta_spara[] = {'S', 'l', 'u', 't', 'a', ' ', 's', 'p', 0xE5, 'r', 'a', 0};
const char borja_spara[] = {'B', 0xF6, 'r', 'j', 'a', ' ', 's', 'p', 0xE5, 'r', 'a', 0};
const char* MenuStrings[] = {
  vilolage, // ZERO 0
  "Tillbaka", // MAIN_SCREEN 1
  "Meny", // MENU 2
  "Koppla enhet", // PAIRING 3
  hasTarget ? sluta_spara : borja_spara, // TRACKING 4
  "Skicka notis", // NOTICE 5
};