Welcome to arduino-esp32 Discussions!

[VojtechBartoska]

👋 Welcome!

We’re using Discussions as a place to connect with other members of our community.

As a Main Communication channel is still used Gitter. ⭐

The purpose for this Discussion page is for now collect and track testing feedback for ESP32-S3 Support. 💥

We will be glad if you help us with your contribution . ✌️

[thakursaajid]

Hello Sir,
I can not find esp32 library in the manager Libraries search
I follow with this URL " https://docs.espressif.com/projects/arduino-esp32/en/latest/installing.html " but did not find mention esp32 library
Arduino 1.8.15

[opticaldrive]

esp32 library?

It should be the boards manager....

[PratikBhagat22]

hello,
I am using ubuntu as arduino ide 2.0 run faster in ubuntu
i was using arduino 2.0.2 and esp32 packages 2.0.5 . all was working great but some how for today i am not able to compile the esp32 codes.
getting error[ esp32 cp: target 'serial.ino.bootloader.bin' is not a directory](esptool: error: unrecognized arguments: serial.ino.bootloader.bin /home/pratik_successful/.arduino15/packages/esp32/hardware/esp32/2.0.5/tools/sdk/esp32/bin/bootloader_qio_80m.elf)

the above error not present if i use esp32 package below 2.0.0

kindly help

[me-no-dev]

Looks like something was cached. Did you restart the IDE after updating? We no longer supply the bootloader bins but rather convert the elfs we now provide.

[HeadHodge]

hi,

im using your usb-cdc client example with my esp32-s3-otg-usb connected to my win10 laptop.

it works fine with a windows terminal program connected to it. but hangs when using a win program that requires hardware handshaking.

is there a way to enable hardware handshaking on my esp32-s3? if so how?

thanks

[nileshvyas]

Hi Everyone,

I'm currently working on a project where I want to read 4-channel 32-bit PCM audio data through the I2S interface on an ESP32-S3 MCU in Arduino IDE environment. I have an ADAU7118 evaluation board (https://www.analog.com/en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/eval-adau7118.html) that converts data from 4 PDM mics into PCM and feeds it through I2S.
From what I've gathered, the default I2S library in arduino-esp32 predominantly supports 2-channel (stereo) mode. However, my application necessitates reading data from 4 mics, and I'm finding it challenging to configure the I2S to handle this 4-channel data.
Code:
// Include I2S driver
#include <driver/i2s.h>
#define I2S_WS 6
#define I2S_SD 4
#define I2S_SCK 5
#define BITS_PER_SAMPLE 32
// Use I2S Processor 0
#define I2S_PORT I2S_NUM_0

// Define input buffer length
#define bufferLen 128
int32_t sBuffer[bufferLen];

void i2s_install() {
// Set up I2S Processor configuration
const i2s_config_t i2s_config = {
.mode = i2s_mode_t(I2S_MODE_MASTER | I2S_MODE_RX),
.sample_rate = 8000,
.bits_per_sample = i2s_bits_per_sample_t(32),
.channel_format = I2S_CHANNEL_FMT_RIGHT_LEFT,
.communication_format = i2s_comm_format_t(I2S_COMM_FORMAT_STAND_I2S),
.intr_alloc_flags = 1, //0
.dma_buf_count = 8,
.dma_buf_len = bufferLen,
.use_apll = false
};
i2s_driver_install(I2S_PORT, &i2s_config, 0, NULL);
}

void i2s_setpin() {
// Set I2S pin configuration
const i2s_pin_config_t pin_config = {
.bck_io_num = I2S_SCK,
.ws_io_num = I2S_WS,
.data_out_num = -1,
.data_in_num = I2S_SD
};
i2s_set_pin(I2S_PORT, &pin_config);
}

void setup() {
// Set up Serial Monitor
Serial.begin(2000000);
Serial.println("Sample demo for read audio data\n");
// Set up I2S
i2s_install();
i2s_setpin();
i2s_start(I2S_PORT);
delay(500);
}

void loop() {
int32_t buffer[2];
size_t bytesIn = 0;
esp_err_t result = i2s_read(I2S_PORT, (char*)buffer, BITS_PER_SAMPLE/8 * 2, &bytesIn, portMAX_DELAY);
if(result == ESP_OK)
{
Serial.printf("Left: %d, Right: %d\n", buffer[0], buffer[1]) ;
}
}

Has anyone encountered a similar challenge? I'm curious if:
There's a way to modify the current I2S library or directly invoke ESP-IDF functionalities from Arduino to cater to 4-channel audio?
Anyone knows of third-party libraries or tools in the Arduino ecosystem that support multi-channel I2S on the ESP32?
Any guidance, references, or pointers would be immensely appreciated. Thanks in advance!

[SHOGO-IGUCHI]

We aim to simultaneously sample (32K) the accelerometer and microphone values using UDP.
Will there be any problems if I increase the buffer size (1460) of WiFiUdp.cpp?

[richp-tech]

Driver loaded; shows up in USB Tree; MacBook Air; won't mount the LilyGo T Display. Any Help gratefully received.

[ArmandAanekre]

I am using a ESP32-S3 in my project. It's the simplest variant with only 4MB flash. MPN: ESP32-S3-WROOM-1U-N4
When programming with PlatformIO it works OK, but when using Arduino I have problems with version 2.0.15 and 2.0.16.
Rolling back to 2.0.14 solves the problem.

I am programming using native USB with: USB CDC On Boot: "Enabled"
When using 2.0.15/16 I have to set the chip in "download" mode with GPIO0 to be able to reprogram.
With 2.0.14 I can reprogram the chip without issues. I can even leave the Serial Monitor open without issues.

Using 2.0.15/16 there seems to be a reset missing. If I leave the Serial Monitor open, it cannot find the USB port and gives the message:

A fatal error occurred: Could not open COM17, the port doesn't exist
Failed uploading: uploading error: exit status 2

If I first close the Serial Monitor there is no response from the chip and I get the following message:
A fatal error occurred: No serial data received.
Failed uploading: uploading error: exit status 2

This has been verified with the exact same setup several times swithing between the versions.

A clue might be this yellow WARNING I get in PlatformIO when enabling verbose upload:
TimeoutError: Could not automatically find serial port for the ESP32-S3-2DEA-1-N4 board based on the declared HWIDs=['0X303A:1001']

After the warning it autodetects COM17 and continues the upload.

[me-no-dev]

yup. we know and have found the case of the issue. Will be soon fixed in 2.0.x

[ArmandAanekre]

Perfect:)