void drawChar(int x, int y, char c, uint16_t color) { if (c < FIRST_CHAR || c > LAST_CHAR) return; // Validation // Calculate offset in the font array // Each char takes 12 bytes (6 columns * 2 bytes for height) uint16_t index = (c - FIRST_CHAR) * 12;
Microcontrollers frequently drive small Organic Light-Emitting Diode (OLED) and Liquid Crystal Display (LCD) screens. Displaying readable text on these tiny displays requires a compact, efficient font library. The Font 6x14.h library is a popular choice for developers who need highly legible text without consuming excessive microcontroller memory. What is the Font 6x14.h Library?
The raw data for 6x14 is efficient, but if only numbers and uppercase letters are needed, the array size can be reduced by defining a custom FIRST_CHAR and LAST_CHAR index, effectively "cropping" the font table.
Note: URLs change. Verify the content contains a valid 14-row bitmap per character before use. Font 6x14.h Library Download
Many developers host custom fonts on GitHub. Search for "6x14 font header" or look in the following repositories:
For a stand-alone download of the header file or if you want to explore the source code, GitHub remains the best source.
: To use it, you must include the file in your sketch and set it as the active font: void drawChar(int x, int y, char c, uint16_t
#ifndef FONT6X14_H #define FONT6X14_H #include <stdint.h>
These fonts are commonly found in the firmware of early mobile phones and other digital devices. The 6x14 monospace font you see today might be a clone of a font found in the firmware of a Samsung SCH-X430. Other variants exist, such as one that renders glyphs 5 pixels wide instead of 6 for a more accurate BIOS-style look.
Because a specific "Font 6x14.h" file isn't a standard library, you will find them in various public and private repositories. What is the Font 6x14
Have you used the 6x14 font in a project? Share your experience in the comments below.
A typical font6x14.h file looks like this in C syntax:
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void DrawChar6x14(int x, int y, char c, uint16_t color)