Note

CoreS3 uses the M5GFX library as the display driver. Refer to the APIs and examples below for simple display operations. For more API details, please refer to the M5GFX documentation.

Example Program

Compilation Requirements

M5Stack Board Manager version >= 3.2.2
Board selection = M5CoreS3
M5Unified library version >= 0.2.11
M5GFX library version >= 0.2.14

cpp 
#include <M5Unified.h>

void draw_function(LovyanGFX* gfx) {
    int x      = rand() % gfx->width();
    int y      = rand() % gfx->height();
    int r      = (gfx->width() >> 4) + 2;
    uint16_t c = rand();
    gfx->fillRect(x - r, y - r, r * 2, r * 2, c);
}

void setup() {
    auto cfg = M5.config();
    M5.begin(cfg);
    int textsize = M5.Display.height() / 60;
    if (textsize == 0) {
        textsize = 1;
    }
    M5.Display.setTextSize(textsize);
}

void loop() {
    int x      = rand() % M5.Display.width();
    int y      = rand() % M5.Display.height();
    int r      = (M5.Display.width() >> 4) + 2;
    uint16_t c = rand();
    M5.Display.fillCircle(x, y, r, c);
    draw_function(&M5.Display);
}

The example result is shown below. The program draws circles and rectangles of different colors at random positions on the screen:

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