Arduino入門
#include <M5Unified.h>
// Function to draw a random rectangle
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() {
// Initialize M5Unified
auto cfg = M5.config();
M5.begin(cfg);
// Set text size based on screen height
int textsize = M5.Display.height() / 60;
if (textsize == 0) {
textsize = 1;
}
M5.Display.setTextSize(textsize);
}
void loop() {
// Draw a random filled circle
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);
// Call draw_function to draw a random rectangle
draw_function(&M5.Display);
delay(50);
}
アップロード後、以下のようになります: