M5Unified クイックスタート

#include <M5Unified.h>  // Make the M5Unified library available to your program.

// global variables (define variables to be used throughout the program)
uint32_t count;

// setup function is executed only once at startup.
// This function mainly describes the initialization process.
void setup()
{
    auto cfg = M5.config();  // Assign a structure for initializing M5Stack
    // If config is to be set, set it here
    // Example.
    // cfg.external_spk = true;

    M5.begin(cfg);  // initialize M5 device

    M5.Display.setTextSize(3);           // change text size
    M5.Display.print("Hello World!!!");  // display Hello World! and one line is displayed on the screen
    Serial.println("Hello World!!!");    // display Hello World! and one line on the serial monitor
    count = 0;                           // initialize count
}

// loop function is executed repeatedly for as long as it is running.
// loop function acquires values from sensors, rewrites the screen, etc.
void loop()
{
    M5.Display.setCursor(0, 20);              // set character drawing coordinates (cursor position)
    M5.Display.printf("COUNT: %d\n", count);  // display count on screen
    Serial.printf("COUNT: %d\n", count);      // display count serially
    count++;                                  // increase count by 1
    delay(1000);                              // wait 1 second(1,000msec)
}