cpp 
#include "M5Unified.h"

void setup() {
    auto cfg = M5.config();
    M5.begin(cfg);
    M5.Display.setRotation(1);
    M5.Display.setTextColor(GREEN);
    M5.Display.setTextDatum(middle_center);
    M5.Display.setTextFont(&fonts::Orbitron_Light_24);
    M5.Display.setTextSize(1);
    M5.Display.drawString("Speaker Test", M5.Display.width() / 2,
                                M5.Display.height() / 2);
}

void loop() {
    M5.Speaker.tone(10000, 100);
    delay(1000);
    M5.Speaker.tone(4000, 20);
    delay(1000);
}

After successful upload, you will hear the CoreS3 speaker emit sounds of different frequencies, 10kHz and 4kHz respectively, each lasting 1 second.

API

The CoreS3 Speaker driver section uses the Speaker_Class from the M5Unified library. For more related APIs, please refer to the documentation below:

M5Unified - Speaker Class

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