Hi Guys,

I have a core S3 that I am trying to program via the Arduino IDE as UiFlow 2 is missing a lot of the capabilites for the S3.

I have also tried this with a standard ESp32 S3 board and get the same issue but could do with some guidance.

My Code:

    // Include required libraries
    #include "M5CoreS3.h"
    #include "Arduino.h"
    #include "Audio.h"
    #include "SD.h"
    #include "FS.h"
    
    // microSD Card Reader connections
    #define SD_CS         15
    #define SPI_MOSI      37 
    #define SPI_MISO      35
    #define SPI_SCK       36
    
    // I2S Connections
    #define I2S_DOUT      39
    #define I2S_BCLK      40
    #define I2S_LRC       41
    
    // Create Audio object
    Audio audio;
    
    void setup() {
        M5.begin();
        // Set microSD Card CS as OUTPUT and set HIGH
        pinMode(SD_CS, OUTPUT);      
        digitalWrite(SD_CS, HIGH); 
        
        // Initialize SPI bus for microSD Card
        SPI.begin(SPI_SCK, SPI_MISO, SPI_MOSI);
        

        USBSerial.print("MOSI: ");
        USBSerial.println(MOSI);
        USBSerial.print("MISO: ");
        USBSerial.println(MISO);
        USBSerial.print("SCK: ");
        USBSerial.println(SCK);
        USBSerial.print("SS: ");
        USBSerial.println(SS);  
        SPIClass SPI1(HSPI);
        // Start microSD Card
        if(!SD.begin(SD_CS, SPI1))
        {
          USBSerial.println("Error accessing microSD card!");
          while(true); 
        }
        
        // Setup I2S 
        audio.setPinout(I2S_BCLK, I2S_LRC, I2S_DOUT);
        USBSerial.println("Pinout Set!");
        // Set Volume
        audio.setVolume(5);
        USBSerial.println("Volume Set Set!");
        // Open music file
        audio.connecttoFS(SD,"/demo.mp3");
        USBSerial.println("File Open!");
    }
    
    void loop()
    {
        audio.loop();    
    }

Basically, I keep getting the message "Error accessing microSD card!" on the terminal. Pretty sure I have the pins right? And the card is formatted to FAT32.

For some reason, I just cannot get it to read

Any Ideas?

Thanks

@kombistack Damn, just stumbled into this issue also. I'm guessing there is still no fix?

Hi Guys,

So im working on a little project, I have some experience with electronics and some with arduino. I am however far from an expert.

I am looking to build something based on the below requirements:

• Ability to use a mobile app to upload 4 audio files to an SD card (always 4 files, but they need to be able to be updated)
• Ability to play said audio files by pressing one of 4 buttons

Hardware:
I have an M5stack Core2, M5stickC and an M5Stack CoreS3 (on the way). I figured the Core2 would be a good option for this.

My Question is, how should I approach this, where to start.

I use normal python at work, but again, not an expert
I have used arduino for a good number of years, but the most complex thing I built was a signal generator using I2c and an oled screen
I have played around with UIFlow (I like it) but suspect this may be a bit too limited for this purpose?

Im just looking to prototype something, so I accept that the Core2 may be overkill.

Im guessing the hardest part is the bluetooth requirement as it;s not something ive really dealt with (other than as a consumer). I did think that I could split it up and use the app to upload the audio to cloud storage, and just have the M5 grab the files via wifi. But then that carries a wifi access requirement, and then I also need an easy way for people to connect it to wifi. Im looking for a smooth experience

Any advice welcome