s51 UTF-8 font is an open source font based on the simple51 framework. This library is mainly used to display Chinese ASCII codes or other Chinese characters on a monochrome dot matrix display module.
per the Github Instructions. The pins are defined in there. // Font 1. Original Adafruit 8 pixel font needs ~1820 bytes in FLASH // Font 2. Small 16 pixel high font, needs ~3534 bytes in FLASH, 96 ...