I have been able to get a program to work that uses the M5EchoBase library but no luck using the unified library. For example the simple program below doesn't work.
#include <M5Unified.h>
void setup() {
// 1. Initialize M5Unified
delay(1000); // Delay for a moment to allow the system to stabilize.
auto cfg = M5.config();
cfg.serial_baudrate = 115200;
M5.begin(cfg);
// 2. Configure the Speaker for the Atomic Audio Base (ES8311)
// We access the speaker configuration directly via M5.Speaker.config()
auto spk_cfg = M5.Speaker.config();
// Set pins for Atomic Audio Base (ES8311)
spk_cfg.pin_bck = 8; // BCLK
spk_cfg.pin_ws = 6; // LRCK (WS)
spk_cfg.pin_data_out = 5; // DAC (DOUT)
spk_cfg.i2s_port = I2S_NUM_0;
// Configure for external codec (not internal DAC)
spk_cfg.use_dac = false;
spk_cfg.sample_rate = 44100;
// Apply the configuration
M5.Speaker.config(spk_cfg);
// 3. Start the speaker
M5.Speaker.begin();
// 4. Set volume (0-255)
M5.Speaker.setVolume(128);
}
void loop() {
M5.update();
// Play a 1000 Hz tone for 1000 milliseconds (1 second)
M5.Speaker.tone(1000, 1000);
// Wait for the tone to finish
delay(1000);
// Small delay before next loop
delay(1000);
}
Is there no way to set up the ES8311 codec without using M5EchoBase? strangely if I run the program below then load the above program the tone works? But I can't stick the M5.Speaker.tone(1000, 1000); command in the program below and have it work. Does anyone know how to play a tone using only the Unified library from an AtomS3R into a Atomic Audio Base (ES8311 codec)?
#include <M5Unified.h>
#include <M5EchoBase.h>
#if defined(CONFIG_IDF_TARGET_ESP32S3)
#define RECORD_SIZE (1024 * 400)
#elif defined(CONFIG_IDF_TARGET_ESP32)
#define RECORD_SIZE (1024 * 400)
#endif
#if (ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 0, 0))
M5EchoBase echobase;
#else
M5EchoBase echobase(I2S_NUM_0);
#endif
static uint8_t *buffer = nullptr; // Pointer to hold the audio buffer.
void setup()
{
delay(1000); // Delay for a moment to allow the system to stabilize.
auto cfg = M5.config();
cfg.serial_baudrate = 115200;
M5.begin(cfg);
// Initialize the EchoBase with ATOMS3 pinmap.
#if defined(CONFIG_IDF_TARGET_ESP32S3)
if (!echobase.init(44100 /*Sample Rate*/, 38 /*I2C SDA*/, 39 /*I2C SCL*/, 7 /*I2S DIN*/, 6 /*I2S WS*/,
5 /*I2S DOUT*/, 8 /*I2S BCK*/, Wire) != 0) {
Serial.println("Failed to initialize EchoBase!");
while (true) {
delay(1000);
}
}
#elif defined(CONFIG_IDF_TARGET_ESP32)
// Initialize the EchoBase with ATOM pinmap.
if (!echobase.init(44100 /*Sample Rate*/, 25 /*I2C SDA*/, 21 /*I2C SCL*/, 23 /*I2S DIN*/, 19 /*I2S WS*/, 22 /*I2S
DOUT*/, 33 /*I2S BCK*/, Wire) != 0) {
Serial.println("Failed to initialize EchoBase!");
while (true) {
delay(1000);
}
}
#endif
echobase.setSpeakerVolume(80); // Set speaker volume to 70%.
echobase.setMicGain(ES8311_MIC_GAIN_0DB); // Set microphone gain to 0dB.
buffer = (uint8_t *)malloc(RECORD_SIZE); // Allocate memory for the record buffer.
// Check if memory allocation was successful.
if (buffer == nullptr) {
// If memory allocation fails, enter an infinite loop.
while (true) {
Serial.println("Failed to allocate memory :(");
delay(1000);
}
}
Serial.println("EchoBase ready, start recording and playing!");
// M5.Speaker.tone(2000, 2000);
// delay(2000);
}
void loop()
{
Serial.println("Start recording...");
// Recording
echobase.setMute(false);
echobase.record(buffer, RECORD_SIZE); // Record audio into buffer.
delay(100);
Serial.println("Start playing...");
// Playing
echobase.setMute(false);
delay(10);
echobase.play(buffer, RECORD_SIZE); // Play audio from buffer.
//M5.Speaker.playRaw(buffer, RECORD_SIZE, 44100, false, 1, 0);
delay(100);
}
