MUSE PROTO board

[tobal]

But the no sound problem after exit recovery is also a software problem?
How can I get sound again without start from zero?
(Reinstall the Proto bin file)

Thanks

[Raspiaudio]

I advance that this is a software issue because of this cross test : I have seen the issue on 3 different hardware when doing many unexpected hard reset : a standard ESP32 generic dev boad with a dac, Muse Proto and Muse Luxe, but I did not seen this issue with the Simple bluetooth sketch on the same hardwares.

This will require an important software modification of SqueezeLite that is a little bit above our skills, let me talk to Philippe44 about it

[aleksey]

Hi!
I’ve just bought this product (RASPIAUDIO ESPMUSE Proto esp32 Carte de développement with Speaker and Microphone) and it has really cool design and functionality that absolutely covers my requirements (I am doing smart speaker).

I have some troubles building example from this repo https://github.com/RASPIAUDIO/Simple_Bluetooth_Speaker_ESP32, particularly this example https://github.com/RASPIAUDIO/Simple_Bluetooth_Speaker_ESP32/blob/master/speaker/speaker.ino , because probably I don’t have much experience with c++ and example is complex and contains multiple features. At the moment I have some troubles with imported dependencies that have breaking changes. It would be nice to know versions of such dependencies (esp-idf, arduino-esp32) or actualize speaker.ino.

What would really cool to have in github repo is a few simple sketches:

• playing of a single file from SD card
• simple button example
• simple led example
• simple recording and play example

Really big thanks for CAD.stl !

[Raspiaudio]

Hi Alesey,

Have you tried to copy the “muse_lib” directory in your arduino library directory ? All dependencies should be there.

copy this directory to :
/your username/Documents/Arduino/libraries/

[aleksey]

Yes, I did it. I’ve added logs and explanation here:

How to build?

[Raspiaudio]

In adruino try to downgrade your ESP32 board manager to 1.0.5:
" Note that for now the code ONLY COMPILES WITH VERSION 1.0.5"

ESP MUSE LUXE Bluetooth speaker

This is the tutorial for the ESP MUSE LUXE to load the Basic bluetooth speaker sketch. This is the default Sketch that is loaded on the speaker when you received it. Features of this Squetch: Bluetooth AD2P audio connectivity MP3 read on the SD card Amplification of what is sent to the AUX IN jack cable Battery neopixel charge indicator Mute button, volume UP, Down NOTE THAT THE USB CABLE THAT COME WITH THE SPEAKER IS A CHARGING CABLE ONLY to upload data you will need a micro usb data cable …

Espressif have updated some library and it seems that some #define have been renamed.

[aleksey]

Thank you for your help, Raspiaudio!

I can compile it now, problem solved

What I’ve done so far (MacOs):

1. (was not required) Uninstalled Arduino + removed /Users/aleksey/Documents/Arduino (sketches and libraries) + removed /Users/aleksey/Library
2. (was not required) Downloaded and installed the latest version of Arduino
3. Installed Esp32 board version 1.05 (<<< that was important)
4. Copied muse_lib to /Users/aleksey/Library/
5. Copied sketch from here https://raw.githubusercontent.com/RASPIAUDIO/Simple_Bluetooth_Speaker_ESP32/master/speaker/speaker.ino
6. Verify

I had:

In file included from /Users/aleksey/Documents/Arduino/muse_test/muse_test.ino:20:0:

/Users/aleksey/Documents/Arduino/libraries/muse_lib/src/Audio.h:15:10: fatal error: FS.h: No such file or directory

#include “FS.h”

^~~~~~

compilation terminated.

7. I forget to select the board (“ESP32 Wrover Module”),

Now it compiles!

---

I still have some trouble with playing files from SD. I’ve built a sketch that can only work with .wav and 44100 kHz but it looks far from optimal.

Could you provide the simplest sketch for reading a file by name from SD card and playing it?
Could you provide supported SD card capacities and expected file system format? I have a 32Gb microSD card with FAT32, will it work?

Here is my sketch:

#include "Arduino.h"
#include "SD.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "esp_log.h"
#include <driver/i2s.h>
#include "SPIFFS.h"

#define I2SR (i2s_port_t)0
#define VM GPIO_NUM_0       // button
#define ONled 0
#define PW GPIO_NUM_21        // Amp power ON
#define GAIN GPIO_NUM_23      //
#define BLOCK_SIZE 128
#define SD_CS 13

bool testOK;
static bool mp3ON;

const i2s_config_t i2s_configR = {
  .mode = i2s_mode_t(I2S_MODE_MASTER | I2S_MODE_RX | I2S_MODE_TX ), // Receive, transfer
  .sample_rate = 44100,                         //
  .bits_per_sample = I2S_BITS_PER_SAMPLE_16BIT, //
  .channel_format = I2S_CHANNEL_FMT_ONLY_RIGHT, // although the SEL config should be left, it seems to transmit on right
  .communication_format = i2s_comm_format_t(I2S_COMM_FORMAT_I2S | I2S_COMM_FORMAT_I2S_MSB),
  .intr_alloc_flags = ESP_INTR_FLAG_LEVEL1,     // Interrupt level 1
  .dma_buf_count = 4,                           // number of buffers
  .dma_buf_len = BLOCK_SIZE                           // samples per buffer
};

i2s_pin_config_t pin_configR =
{
  .bck_io_num = 5 ,    // BCKL
  .ws_io_num = 25 ,    // LRCL
  .data_out_num = 26,  // DOUT
  .data_in_num = 35    // DIN
};

static void playAudio(void)
{
  int16_t s0, s1;
  static int8_t c[44100];
  int l;
  size_t t;
  uint16_t s16[64];
  int a = 0;

  i2s_set_clk(I2SR, 44100, I2S_BITS_PER_SAMPLE_16BIT, I2S_CHANNEL_MONO);

  File f = SD.open("/500hz44100Mono.wav", FILE_READ);
  // File f = SPIFFS.open("/bluetooth.wav", FILE_READ);
  if (f == NULL) printf("err opening file\n");
  // header read
  f.read((uint8_t*)c, 44);

  do
  {
  // data read
  l = (int)f.read((uint8_t*)c, 44100);
  if (l < 0) printf("Erreur \n");
  //  i2s_zero_dma_buffer(I2SR);
  for (int i = 0; i < l; i++)
  {
    // sample value 8bits -> 16
    s0 = (((int16_t)(c[i] & 0xFF)) - 128) << 8 ;
    // attenuation  a
    s0 = s0 >> a;
    // buffering -> s16
    s16[i % 64] = (uint16_t)s0;
    if (((i + 1) % 64) ==  0)
    {
      int n = 0;
      //sending
      while (n == 0) n = i2s_write_bytes(I2SR, (const char*)s16, 128, portMAX_DELAY);
    }
  }
  }while(l > 0);
  // muting after playing
  for (int i = 0; i < 64; i++)s16[i] = 0;
  int n = 0;
  while (n == 0) n = i2s_write_bytes(I2SR, (const char*)s16, 128, portMAX_DELAY);
  i2s_zero_dma_buffer(I2SR);

  f.close();
  printf ("Play End\n");
}

#define SPI_MOSI 15
#define SPI_MISO 2
#define SPI_SCK 14

void setup()
{
  Serial.begin(115200);
  esp_err_t err;

  if (!SPIFFS.begin(true))Serial.println("Erreur SPIFFS");

  SPI.begin(SPI_SCK, SPI_MISO, SPI_MOSI);
  if(!SD.begin(SD_CS))
  {
    Serial.printf("SD initialization failed!\n");
  } else {
    Serial.printf("SD initialization successfully\n");
  }
  
  //Init buton
  gpio_reset_pin(VM);
  gpio_set_direction(VM, GPIO_MODE_INPUT);
  gpio_set_pull_mode(VM, GPIO_PULLDOWN_ONLY);

  // Amp power enable
  gpio_reset_pin(PW);
  gpio_set_direction(PW, GPIO_MODE_OUTPUT);
  gpio_set_level(PW, 1);

  gpio_reset_pin(GAIN);
  gpio_set_direction(GAIN, GPIO_MODE_OUTPUT);  
  gpio_set_pull_mode(GAIN, GPIO_PULLDOWN_ONLY);   // 15dB
  i2s_driver_install(I2SR, &i2s_configR, 0, NULL);
  i2s_set_pin(I2SR, &pin_configR);
  i2s_stop(I2SR);
}

void loop() {
 
  if (gpio_get_level(VM) == 0)
  {
    //playing 
    printf("Playing\n");
    i2s_start(I2SR);
    playAudio();
    delay(100);
    i2s_stop(I2SR);
  }
}

[aleksey]

Could you provide the simplest sketch to read a file by name from the SD card and play it back?

[aleksey]

// Plays: 8bit mono 44100hz wav file:

#include "Arduino.h"
#include "SD.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "esp_log.h"
#include <driver/i2s.h>
#include "SPIFFS.h"

const uint8_t VOLUME = 31; // 0..63

#define I2SR (i2s_port_t)0
#define VM GPIO_NUM_0       // button
#define ONled 0
#define PW GPIO_NUM_21        // Amp power ON
#define GAIN GPIO_NUM_23      //
#define BLOCK_SIZE 128
#define SD_CS 13

const i2s_config_t i2s_configR = {
  .mode = i2s_mode_t(I2S_MODE_MASTER | I2S_MODE_RX | I2S_MODE_TX ), // Receive, transfer
  .sample_rate = 44100,                         //
  .bits_per_sample = I2S_BITS_PER_SAMPLE_16BIT, //
  .channel_format = I2S_CHANNEL_FMT_ONLY_RIGHT, // although the SEL config should be left, it seems to transmit on right
  .communication_format = i2s_comm_format_t(I2S_COMM_FORMAT_I2S | I2S_COMM_FORMAT_I2S_MSB),
  .intr_alloc_flags = ESP_INTR_FLAG_LEVEL1,     // Interrupt level 1
  .dma_buf_count = 64,                           // number of buffers
  .dma_buf_len = BLOCK_SIZE                           // samples per buffer
};

#define I2S_DOUT      26
#define I2S_BCLK      5
#define I2S_LRC       25
#define I2S_DIN       35

i2s_pin_config_t pin_configR =
{
  .bck_io_num = I2S_BCLK,   
  .ws_io_num = I2S_LRC,   
  .data_out_num = I2S_DOUT,
  .data_in_num = I2S_DIN
};

static void playAudio(char* fileName)
{
  printf("Playing file ");
  printf(fileName);
  printf("\n");
  
  int16_t s0, s1;
  static int8_t c[44100];
  int l;
  size_t t;
  uint16_t s16[64];
  int a = 0;

  i2s_set_clk(I2SR, 44100, I2S_BITS_PER_SAMPLE_16BIT, I2S_CHANNEL_MONO);

  File f = SD.open(fileName, FILE_READ);
  if (f == NULL) printf("err opening file\n");
  
  f.read((uint8_t*)c, 44);

  do
  {
    l = (int)f.read((uint8_t*)c, 44100);
    if (l < 0) printf("Error \n");
    for (int i = 0; i < l; i++)
    {
      s0 = (((int16_t)(c[i] & 0xFF)) - 128) << 8 ;
      s0 = s0 >> a;  
      s0 = s0 * VOLUME >> 6;
      s16[i % 64] = (uint16_t)s0;
      if (((i + 1) % 64) ==  0)
      {
        int n = 0;
        while (n == 0) n = i2s_write_bytes(I2SR, (const char*)s16, 128, portMAX_DELAY);
      }
    }
  } while (l > 0);
  
  // muting after playing
  for (int i = 0; i < 64; i++)s16[i] = 0;
  int n = 0;
  while (n == 0) n = i2s_write_bytes(I2SR, (const char*)s16, 128, portMAX_DELAY);
  i2s_zero_dma_buffer(I2SR);

  f.close();
  printf ("Stop\n");
}

#define SPI_MOSI 15
#define SPI_MISO 2
#define SPI_SCK 14

void setup()
{
  Serial.begin(115200);
  esp_err_t err;

  if (!SPIFFS.begin(true))Serial.println("SPIFFS failed \n");

  SPI.begin(SPI_SCK, SPI_MISO, SPI_MOSI);
  if (!SD.begin(SD_CS))
  {
    Serial.printf("SD initialization failed!\n");
  } else {
    Serial.printf("SD initialization successfully\n");
  }
  
  //Init buton
  gpio_reset_pin(VM);
  gpio_set_direction(VM, GPIO_MODE_INPUT);
  gpio_set_pull_mode(VM, GPIO_PULLDOWN_ONLY);

  // Amp power enable
  gpio_reset_pin(PW);
  gpio_set_direction(PW, GPIO_MODE_OUTPUT);
  gpio_set_level(PW, 1);

  gpio_reset_pin(GAIN);
  gpio_set_direction(GAIN, GPIO_MODE_OUTPUT);  
  gpio_set_pull_mode(GAIN, GPIO_PULLDOWN_ONLY);   // 15dB
  i2s_driver_install(I2SR, &i2s_configR, 0, NULL);
  i2s_set_pin(I2SR, &pin_configR);
  i2s_stop(I2SR);
}

void loop() {
  if (gpio_get_level(VM) == 0)
  {
    i2s_start(I2SR);
    //playAudio("/500hz44100Mono.wav"); 
    playAudio("/1/cherepaha-aha-aha-8bit-mono.wav");
    delay(100);
    i2s_stop(I2SR);
  }
}

[Chris]

My new Muse Proto board will not show up as a bluetooth device.

I followed the (1-Quick and dirty (no soldering)) instuctions on

DIY Arduino speaker -- made from a 5 dollars second hand passive speaker

This is a how-to guide to build a programmable Bluetooth speaker made from a 5 dollars second hand passive speaker found in a yard sale. [DIY Arduino speaker -- made from a 5 dollars second hand passive speaker] The benefits are : -100% hackable as the MUSE PROTO uses an ESP32 and all the code is open sources you can what you want out of it (web radio, walkie talkie) -It’s cheap as second-hand passive speakers are almost given -It sounds good and has a retro style to it! -It is…

downloaded the bin-file and the program.
Ran the program and added the bin-file and found the port
The progress took about 5 seconds to go from Idle to Sync, Download and then to Finish. (Not 3 minutes like the instruction indicated).

The command window that pops up shows this
Uploading stub…
Running stub…
Stub running…
FLASH_CRYPT_CNT 0
ABS_DONE_0 False

is stub and send flash finish

I’m no progarmmer so is there an easy way to get tihs to work?

[Raspiaudio]

Hi Chris and welcome!
Seems that you forgot to tick the checkbox on the left of the path of the file to upload

[Chris]

Silly me, I missed that one. So this time it took about 3 minutes to run the process but still no Bluetooth device MUSE_SEAKER shows up.

[Raspiaudio]

I will have to try myself next week.

But meanwhile may I recommend you to try Squeezelite it does Bluetooth too and much more such as multirooms

Multirooms with SQUEEZELITE with ESP32 MUSE PROTO

This is a quick tutorial to burn Squeezelite on the ESPMUSE PROTO to do multiroom audio. Multiroom is great at home when you want to have the same music synchronized in you living room, kitchen, bathroom without the need of moving a bluetooth speaker and a phone with you, or worst having a very loud distorted music in one room hoping to hear in every room. Squeezelite-esp32 is an audio software suite made to run on espressif’s ESP32 wifi (b/g/n) and bluetooth chipset. It offers the following ca…

Use the new method 1 with a Chrome browser. Looking forward to have your feedback on how easy to use this method.

[Chris]

That worked! And so supereasy It took me a while to find the IP-address to log in to the device, the description on the chrome browser installation mentioned how to log in on the temporary wi-fi created but didn’t mention the IP-adddress 192.168.4.1 to the user interface. But after that it’s been a breeze. Thank you.

[Raspiaudio]

COOL don’t hesitate to share your creation!

[aleksey]

Hi Raspiaudio

Maybe you can help with a few problems I have with the board.

1. Each time I upload firmware I need to press on/off and only after that process starts. Is there a way how to avoid this manual step? In my project there is no access to the board except through usb.
2. Please, suggest a way how to control battery discharging states.

[Raspiaudio]

Hi
1-What environment dev are you using? Arduino?

2-what would you like to achieve? Just tracking the battery level?

Thx
Olivier

[aleksey]

1. VSCode
2. I’d like to play some sound if the battery is empty.

[Raspiaudio]

1- just to try, go to https://raspiaudio.github.io/ with a chrome browser, choose Muse proto, connect to the right com port. Open the console and click on reset? do you see you device rebooting? if yes there is no hardware defect. And you should look in the VScode how to do a soft reset after uploading some code.

2-check what we have done here with the battery around line 128

RASPIAUDIO/museProto_radio/blob/main/museProto_radio/museProto_radio.ino

[aleksey]

@Raspiaudio

1- just to try, go to https://raspiaudio.github.io/ with a chrome browser, choose Muse proto, connect to the right com port. Open the console and click on reset? do you see you device rebooting? if yes there is no hardware defect. And you should look in the VScode how to do a soft reset after uploading some code.

1. Perfectly worked for me, thank you. It restarts from the console. I’ll try to find a way how to do a soft reset in VSCode.

2. Very good example, exactly what I needed.

Thank you!

p.s. BTW, very cool approach with https://raspiaudio.github.io!