m5atom-simple-click-and-progress-demo

m5atom-click-progress.ino

#include "M5Atom.h"

uint8_t counter = 0;
uint8_t color_index = 0;

const CRGB COLOR[4] = {
  0xf00000,
  0x00f000,
  0x0000f0,
  0x707070
}; 

void setup() {
    M5.begin(true, false, true);
    delay(50);
    M5.dis.clear();
}

void loop() {
    if (M5.Btn.wasPressed()) {
        counter++;
        if (NUM_LEDS <= counter) { // NUM_LEDS は M5Atomライブラリにある
            counter = 0;
            color_index++;
        }
        if (4 <= color_index) {
            color_index = 0;
        }
    }
    for (int i=0; i<counter+1; i++) {
        M5.dis.drawpix(i, COLOR[color_index]);
    }

    delay(100);
    M5.update();
}