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Arduino Quick Start

2. Devices & Examples

6. Applications

Cardputer Display

APIs and example programs for Cardputer Display, applicable to both Cardputer and Cardputer-Adv.

Example Program

Compilation Requirements

  • M5Stack Board Manager version >= 3.2.2
  • Board option = M5Cardputer
  • M5Cardputer library version >= 1.1.0
  • M5Unified library version >= 0.2.8
  • M5GFX library version >= 0.2.10
cpp
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#include "M5Cardputer.h" void setup() { auto cfg = M5.config(); M5Cardputer.begin(cfg); int textsize = M5Cardputer.Display.height() / 60; if (textsize == 0) { textsize = 1; } M5Cardputer.Display.setTextSize(textsize); } void loop() { int x = rand() % M5Cardputer.Display.width(); int y = rand() % M5Cardputer.Display.height(); int r = (M5Cardputer.Display.width() >> 4) + 2; uint16_t c = rand(); M5Cardputer.Display.fillCircle(x, y, r, c); draw_function(&M5Cardputer.Display); } 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); }

Execution Result:

API

The Cardputer display function uses the M5GFX library as its driver. For more related APIs, please refer to the following documentation:

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