Characters maybe written using either the MAX72XX::Character constants (MAX72XX Code B Font) or as uint8_t values defining the segments to be lit. As the Code B Fonts for 0 - 9 are BCD, they can be ...

Arduino Uno R4 WIFI TYPE-C project to display real-time ping latency visually on an 12x8 LED matrix. Tracks network quality by showing ping bars that scroll across the display.