EchoBaseのサンプルRecordPlay.inoをPlatformIO IDE 向け M5Stack 定型コード環境で動かす

main.cpp

// PlatformIO IDE 向け M5Stack 定型コード環境
// https://github.com/3110/m5stack-platformio-boilerplate-code

// clang-format off
#include "main.hpp"
// clang-format on

#include <M5EchoBase.h>

#define RECORD_DURATION_SEC 3
#define SAMPLE_RATE         16000

#if defined(ARUDINO_M5STACK_ATOMS3R) || defined(ARDUINO_M5STACK_ATOMS3) || \
    defined(ARDUINO_M5STACK_ATOMS3_LITE)
#define I2C_SDA  38
#define I2C_SCL  39
#define I2S_DIN  7
#define I2S_WS   6
#define I2S_DOUT 5
#define I2S_BCK  8
#elif defined(ARDUINO_M5STACK_ATOM_MATRIX) || defined(ARDUINO_M5STACK_ATOM_LITE)
#define I2C_SDA  25
#define I2C_SCL  21
#define I2S_DIN  23
#define I2S_WS   19
#define I2S_DOUT 22
#define I2S_BCK  33
#endif

M5EchoBase echobase(I2S_NUM_0);
static uint8_t *audioBuf = nullptr;
static size_t audioBufSize = 0;

void setup(void) {
    M5_BEGIN();
    echobase.init(SAMPLE_RATE, I2C_SDA, I2C_SCL, I2S_DIN, I2S_WS, I2S_DOUT,
                  I2S_BCK, Wire);

    echobase.setSpeakerVolume(70);
    echobase.setMicGain(ES8311_MIC_GAIN_6DB);

    audioBufSize = echobase.getBufferSize(RECORD_DURATION_SEC);
    audioBuf = (uint8_t *)malloc(audioBufSize);
    if (!audioBuf) {
        while (true) {
            M5DEV_LOGE("Failed to allocate memory :(");
            delay(1000);
        }
    }

    M5DEV_LOGI("EchoBase ready, start recording and playing!");
}

void loop(void) {
    M5_UPDATE();
    if (M5DEV.BtnA.wasPressed()) {
        delay(1000);
        M5DEV_LOGI("Recording...");
        echobase.setMute(true);
        delay(10);
        echobase.record(audioBuf, audioBufSize);
        delay(100);

        M5DEV_LOGI("Playing...");
        echobase.setMute(false);
        delay(10);
        echobase.play(audioBuf, audioBufSize);
        delay(100);
    }
}