M5Stack Core2

[staffa...@oscillator.se]

Hi!

Has anyone got Mozzi to successfully run on a M5Stack Core2?

I can get mozzi code to compile ok, but can't figure out how to get the output to the speaker.

Cheers,

Staffan

SWEDEN

[staffa...@oscillator.se]

OK, so I think I have it figured out.

In AudioConfigESP32.h change these lines to:

// Set output mode
#define ESP32_AUDIO_OUT_MODE PT8211_DAC

// For external I2S output, only: I2S_PINS
#define ESP32_I2S_BCK_PIN 12
#define ESP32_I2S_WS_PIN 0
#define ESP32_I2S_DATA_PIN 2

(Ref: https://github.com/m5stack/M5-ProductExampleCodes/blob/master/Core/M5Core2/Arduino/record/record.ino)

According to the spec's, it's a NS4168 I2S amp.

In your code, put this at the top:

#include <M5Core2.h>

and in the setup():

M5.begin();
M5.Axp.SetSpkEnable(true);

I will experiment further.

/Staffan

[staffa...@oscillator.se]

Anothering thing: The PSRAM of the Core2 introduces a conflict. So you have to disable it in the Arduino IDE.

Also: Put M5.update() in the updateControl() function.

/Staffan