void drawCustomChar(int x, int y, char c) // Offset calculation based on ASCII value int fontIndex = (c - 32) * 14; // Draw the 6x14 bitmap matrix for (int i = 0; i < 14; i++) unsigned char line = pgm_read_byte(&(font_6x14[fontIndex + i])); for (int j = 0; j < 6; j++) if (line & (0x80 >> j)) display.drawPixel(x + j, y + i, SSD1306_WHITE); Use code with caution. Memory Optimization Techniques
The 6x14 font is often bundled with specific hardware libraries rather than being a standalone download. You can find variants of it in the following repositories: GLCD Library: Many older versions of the Arduino GLCD Library
To use this font in an Arduino sketch, you must include it in your project folder and reference it in your code: Include the Header "Font_6x14.h" Use code with caution. Copied to clipboard Select the Font
The font data is stored inside a standard .h file as a byte array, eliminating the need to compile separate source files.
Used to display sensor readings, voltage levels, and temperatures where clarity is vital.
Which are you using (e.g., SSD1306, ILI9341)? Which microcontroller (Arduino Uno, ESP32, etc.)? Do you need help generating a custom font from a .ttf file? Arduino-Libs/GraphicsLib/fonts.h at master - GitHub
Usually, you just need a single 6x14.h file containing the const unsigned char font_6x14[] array. 2. Embedded GUI Libraries
If you need help adjusting the data array for a specific library like or U8g2 , let me know. Please tell me: What microcontroller you are using (Arduino, ESP32, STM32?) Your display controller model (e.g., SSD1306) The graphics library you plan to use Share public link
Ensure your font array uses the PROGMEM attribute (on AVR chips) or const qualifiers (on ARM/ESP chips). This stores the data in Flash memory rather than precious SRAM.
// Render the character on the screen...
#include "6x14.h" #include #include #include Use code with caution. Step 3: Call the Font in Your Rendering Loop