Adafruit_ZeroI2S i2s(0, 1, 9, 2);

Adafruit_ZeroI2S i2s(0, 1, 9, 2);

Adafruit_ZeroI2S i2s;

Adafruit_ZeroI2S i2s;

#include <Arduino.h>

#include <Adafruit_ZeroI2S.h>
#include <math.h>

/* max volume for 32 bit data */
#define VOLUME ( (1UL << 31) - 1)

/* create a buffer for both the left and right channel data */
#define BUFSIZE 128
int left[BUFSIZE];
int right[BUFSIZE];

// Use default pins in board variant
Adafruit_ZeroI2S i2s = Adafruit_ZeroI2S();

void setup()
{
  while (!Serial) delay(10);

  Serial.println("I2S demo");

  for(int i=0; i<BUFSIZE; i++){
      /* create a sine wave on the left channel */
        left[i] = sin( (2*PI / (BUFSIZE) ) * i) * VOLUME;

        /* create a cosine wave on the right channel */
        right[i] = cos( (2*PI / (BUFSIZE) ) * i) * VOLUME;
  }

  /* begin I2S on the default pins. 24 bit depth at
   * 44100 samples per second
   */
  i2s.begin(I2S_32_BIT, 44100);
  i2s.enableTx();
}

void loop()
{
  /* write the output buffers
   * note that i2s.write() will block until both channels are written.
   */
  for(int i=0; i<BUFSIZE; i++){
    i2s.write(left[i], right[i]);
  }
}

#include <Arduino.h>

#include <Adafruit_ZeroI2S.h>
#include <math.h>

/* max volume for 32 bit data */
#define VOLUME ( (1UL << 31) - 1)

/* create a buffer for both the left and right channel data */
#define BUFSIZE 128
int left[BUFSIZE];
int right[BUFSIZE];

// Use default pins in board variant
Adafruit_ZeroI2S i2s = Adafruit_ZeroI2S();

void setup()
{
  while (!Serial) delay(10);

  Serial.println("I2S demo");

  for(int i=0; i<BUFSIZE; i++){
      /* create a sine wave on the left channel */
        left[i] = sin( (2*PI / (BUFSIZE) ) * i) * VOLUME;

        /* create a cosine wave on the right channel */
        right[i] = cos( (2*PI / (BUFSIZE) ) * i) * VOLUME;
  }

  /* begin I2S on the default pins. 24 bit depth at
   * 44100 samples per second
   */
  i2s.begin(I2S_32_BIT, 44100);
  i2s.enableTx();
}

void loop()
{
  /* write the output buffers
   * note that i2s.write() will block until both channels are written.
   */
  for(int i=0; i<BUFSIZE; i++){
    i2s.write(left[i], right[i]);
  }
}

#include <Adafruit_ZeroI2S.h>
#include <Adafruit_ZeroDMA.h>
#include "utility/dma.h"
#include <math.h>

/* max volume for 32 bit data */
#define VOLUME ( (1UL << 31) - 1)

/* create a buffer for both the left and right channel data */
#define BUFSIZE 256
int data[BUFSIZE];

Adafruit_ZeroDMA myDMA;
ZeroDMAstatus    stat; // DMA status codes returned by some functions

Adafruit_ZeroI2S i2s;

void dma_callback(Adafruit_ZeroDMA *dma) {
  /* we don't need to do anything here */
}

void setup()
{
  Serial.begin(115200);
  //while(!Serial);                 // Wait for Serial monitor before continuing

  Serial.println("I2S output via DMA");

  int *ptr = data;

  /*the I2S module will be expecting data interleaved LRLR*/
  for(int i=0; i<BUFSIZE/2; i++){
      /* create a sine wave on the left channel */
        *ptr++ = sin( (2*PI / (BUFSIZE/2) ) * i) * VOLUME;

        /* create a cosine wave on the right channel */
        *ptr++ = cos( (2*PI / (BUFSIZE/2) ) * i) * VOLUME;
  }

  Serial.println("Configuring DMA trigger");
  myDMA.setTrigger(I2S_DMAC_ID_TX_0);
  myDMA.setAction(DMA_TRIGGER_ACTON_BEAT);

  Serial.print("Allocating DMA channel...");
  stat = myDMA.allocate();
  myDMA.printStatus(stat);

  Serial.println("Setting up transfer");
    myDMA.addDescriptor(
      data,                    // move data from here
#if defined(__SAMD51__)
      (void *)(&I2S->TXDATA.reg), // to here (M4)
#else
      (void *)(&I2S->DATA[0].reg), // to here (M0+)
#endif
    BUFSIZE,                      // this many...
      DMA_BEAT_SIZE_WORD,               // bytes/hword/words
      true,                             // increment source addr?
      false);
  myDMA.loop(true);
  Serial.println("Adding callback");
  myDMA.setCallback(dma_callback);

  /* begin I2S on the default pins. 24 bit depth at
   * 44100 samples per second
   */
  i2s.begin(I2S_32_BIT, 44100);
  i2s.enableTx();

  stat = myDMA.startJob();
}

void loop()
{
  Serial.println("do other things here while your DMA runs in the background.");
  delay(2000);
}

#include <Adafruit_ZeroI2S.h>
#include <Adafruit_ZeroDMA.h>
#include "utility/dma.h"
#include <math.h>

/* max volume for 32 bit data */
#define VOLUME ( (1UL << 31) - 1)

/* create a buffer for both the left and right channel data */
#define BUFSIZE 256
int data[BUFSIZE];

Adafruit_ZeroDMA myDMA;
ZeroDMAstatus    stat; // DMA status codes returned by some functions

Adafruit_ZeroI2S i2s;

void dma_callback(Adafruit_ZeroDMA *dma) {
  /* we don't need to do anything here */
}

void setup()
{
  Serial.begin(115200);
  //while(!Serial);                 // Wait for Serial monitor before continuing

  Serial.println("I2S output via DMA");

  int *ptr = data;

  /*the I2S module will be expecting data interleaved LRLR*/
  for(int i=0; i<BUFSIZE/2; i++){
      /* create a sine wave on the left channel */
        *ptr++ = sin( (2*PI / (BUFSIZE/2) ) * i) * VOLUME;

        /* create a cosine wave on the right channel */
        *ptr++ = cos( (2*PI / (BUFSIZE/2) ) * i) * VOLUME;
  }

  Serial.println("Configuring DMA trigger");
  myDMA.setTrigger(I2S_DMAC_ID_TX_0);
  myDMA.setAction(DMA_TRIGGER_ACTON_BEAT);

  Serial.print("Allocating DMA channel...");
  stat = myDMA.allocate();
  myDMA.printStatus(stat);

  Serial.println("Setting up transfer");
    myDMA.addDescriptor(
      data,                    // move data from here
#if defined(__SAMD51__)
      (void *)(&I2S->TXDATA.reg), // to here (M4)
#else
      (void *)(&I2S->DATA[0].reg), // to here (M0+)
#endif
    BUFSIZE,                      // this many...
      DMA_BEAT_SIZE_WORD,               // bytes/hword/words
      true,                             // increment source addr?
      false);
  myDMA.loop(true);
  Serial.println("Adding callback");
  myDMA.setCallback(dma_callback);

  /* begin I2S on the default pins. 24 bit depth at
   * 44100 samples per second
   */
  i2s.begin(I2S_32_BIT, 44100);
  i2s.enableTx();

  stat = myDMA.startJob();
}

void loop()
{
  Serial.println("do other things here while your DMA runs in the background.");
  delay(2000);
}

# SPDX-FileCopyrightText: 2018 Kattni Rembor for Adafruit Industries
#
# SPDX-License-Identifier: MIT

import time
import array
import math
import audiocore
import board
import audiobusio

tone_volume = 0.1  # Increase this to increase the volume of the tone.
frequency = 440  # Set this to the Hz of the tone you want to generate.
length = 8000 // frequency
sine_wave = array.array("h", [0] * length)
for i in range(length):
    sine_wave[i] = int((math.sin(math.pi * 2 * i / length)) * tone_volume * (2 ** 15 -1))

# For Feather M0 Express, ItsyBitsy M0 Express, Metro M0 Express
audio = audiobusio.I2SOut(board.D1, board.D0, board.D9)
# For Feather M4 Express
# audio = audiobusio.I2SOut(board.D1, board.D10, board.D11)
# For Metro M4 Express
# audio = audiobusio.I2SOut(board.D3, board.D9, board.D8)
sine_wave_sample = audiocore.RawSample(sine_wave)

while True:
    audio.play(sine_wave_sample, loop=True)
    time.sleep(1)
    audio.stop()
    time.sleep(1)

# SPDX-FileCopyrightText: 2018 Kattni Rembor for Adafruit Industries
#
# SPDX-License-Identifier: MIT

import time
import array
import math
import audiocore
import board
import audiobusio

tone_volume = 0.1  # Increase this to increase the volume of the tone.
frequency = 440  # Set this to the Hz of the tone you want to generate.
length = 8000 // frequency
sine_wave = array.array("h", [0] * length)
for i in range(length):
    sine_wave[i] = int((math.sin(math.pi * 2 * i / length)) * tone_volume * (2 ** 15 -1))

# For Feather M0 Express, ItsyBitsy M0 Express, Metro M0 Express
audio = audiobusio.I2SOut(board.D1, board.D0, board.D9)
# For Feather M4 Express
# audio = audiobusio.I2SOut(board.D1, board.D10, board.D11)
# For Metro M4 Express
# audio = audiobusio.I2SOut(board.D3, board.D9, board.D8)
sine_wave_sample = audiocore.RawSample(sine_wave)

while True:
    audio.play(sine_wave_sample, loop=True)
    time.sleep(1)
    audio.stop()
    time.sleep(1)

# SPDX-FileCopyrightText: 2018 Kattni Rembor for Adafruit Industries
#
# SPDX-License-Identifier: MIT

import audiocore
import board
import audiobusio

wave_file = open("StreetChicken.wav", "rb")
wave = audiocore.WaveFile(wave_file)

# For Feather M0 Express, ItsyBitsy M0 Express, Metro M0 Express
audio = audiobusio.I2SOut(board.D1, board.D0, board.D9)
# For Feather M4 Express
# audio = audiobusio.I2SOut(board.D1, board.D10, board.D11)
# For Metro M4 Express
# audio = audiobusio.I2SOut(board.D3, board.D9, board.D8)

while True:
    audio.play(wave)
    while audio.playing:
        pass

# SPDX-FileCopyrightText: 2018 Kattni Rembor for Adafruit Industries
#
# SPDX-License-Identifier: MIT

import audiocore
import board
import audiobusio

wave_file = open("StreetChicken.wav", "rb")
wave = audiocore.WaveFile(wave_file)

# For Feather M0 Express, ItsyBitsy M0 Express, Metro M0 Express
audio = audiobusio.I2SOut(board.D1, board.D0, board.D9)
# For Feather M4 Express
# audio = audiobusio.I2SOut(board.D1, board.D10, board.D11)
# For Metro M4 Express
# audio = audiobusio.I2SOut(board.D3, board.D9, board.D8)

while True:
    audio.play(wave)
    while audio.playing:
        pass

# SPDX-FileCopyrightText: 2018 Kattni Rembor for Adafruit Industries
#
# SPDX-License-Identifier: MIT

import board
import audiobusio
from microcontroller import Pin


def is_hardware_i2s(bit_clock, word_select, data):
    try:
        p = audiobusio.I2SOut(bit_clock, word_select, data)
        p.deinit()
        return True
    except ValueError:
        return False


def get_unique_pins():
    exclude = ['NEOPIXEL', 'APA102_MOSI', 'APA102_SCK']
    pins = [pin for pin in [
        getattr(board, p) for p in dir(board) if p not in exclude]
            if isinstance(pin, Pin)]
    unique = []
    for p in pins:
        if p not in unique:
            unique.append(p)
    return unique


for bit_clock_pin in get_unique_pins():
    for word_select_pin in get_unique_pins():
        for data_pin in get_unique_pins():
            if bit_clock_pin is word_select_pin or bit_clock_pin is data_pin or word_select_pin\
                    is data_pin:
                continue
            if is_hardware_i2s(bit_clock_pin, word_select_pin, data_pin):
                print("Bit clock pin:", bit_clock_pin, "\t Word select pin:", word_select_pin,
                      "\t Data pin:", data_pin)
            else:
                pass

# SPDX-FileCopyrightText: 2018 Kattni Rembor for Adafruit Industries
#
# SPDX-License-Identifier: MIT

import board
import audiobusio
from microcontroller import Pin


def is_hardware_i2s(bit_clock, word_select, data):
    try:
        p = audiobusio.I2SOut(bit_clock, word_select, data)
        p.deinit()
        return True
    except ValueError:
        return False


def get_unique_pins():
    exclude = ['NEOPIXEL', 'APA102_MOSI', 'APA102_SCK']
    pins = [pin for pin in [
        getattr(board, p) for p in dir(board) if p not in exclude]
            if isinstance(pin, Pin)]
    unique = []
    for p in pins:
        if p not in unique:
            unique.append(p)
    return unique


for bit_clock_pin in get_unique_pins():
    for word_select_pin in get_unique_pins():
        for data_pin in get_unique_pins():
            if bit_clock_pin is word_select_pin or bit_clock_pin is data_pin or word_select_pin\
                    is data_pin:
                continue
            if is_hardware_i2s(bit_clock_pin, word_select_pin, data_pin):
                print("Bit clock pin:", bit_clock_pin, "\t Word select pin:", word_select_pin,
                      "\t Data pin:", data_pin)
            else:
                pass