M5Cloud/examples/Display/font_tool

Program to convert any ttf font to c source file that can be compiled and used as external font in display.TFT

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This is a command line Windows program, but can be used under Linux with wine:

Usage:

ttf2c_vc2003.exe <point-size> <input-file> <output-file> [<start_char> <end_char>]

or, under Linux:

wine ./ttf2c_vc2003.exe <point-size> <input-file> <output-file> [<start_char> <end_char>]

Example:

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wine ./ttf2c_vc2003.exe 18 Vera.ttf vera.c

After the c source is created, open it in editor and make the following changes:

Delete the line:

#include <avr/pgmspace.h>

Change the line:

uint8_t vera18[] PROGMEM =

to:

const unsigned char vera18[] =

The font name (vera18 here) will be different for different font, you can change it to any other name.

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You can transfer c source file to the MicroPython file system and use tft.compileFont() to compile the font

tft.compileFont("vera.c")

and use it as external font:

tft.font("vera.fon")