Testing UART onReceive() I found a deadlock issue for all the SoCs. PR #6201.
Testing ESP32-S3 with UART1, I found an issue with default pins 17 and 18.
I changed it to 14 and 15 and added default pins for UART2 as 19 and 20. PR #6202

Thank you guys. I hacked together Platformio support for the S3 and we managed to get Project Tasmota (reduced build variant) already booting :-)
unknown
EDIT: The S3 Arduino branch can be used with this unofficial Platformio setup

platform = https://github.com/Jason2866/platform-espressif32.git#IDF44/ESP32-S3
platform_packages = framework-arduinoespressif32 @ https://github.com/espressif/arduino-esp32.git#esp32-s3-support

Fixed Touch issue wih ESP32-S3 -- PR #6234
Fixed RMT examples with ESP32-S3 -- PR #6235

BLE is working (in Tasmota) with S3 :-)

Current tasks of @me-no-dev:

• OPI flash
• PSRAM support
• Lib builder implementation

Finished on 2/11.

Where can I add S3 support? Installed 2.0.2 from the boards manager, but it isn't there.

Sigma Delta on S3 works fine.
S3 has no DAC - not supported.

Hi @me-no-dev - I tested C3 and S3 with S3 Branch and it doesn't compile #6027 STA example.
Something is broken. It compiles fine with master branch. This is the issue I talked about DIO/QIO with WiFi for the C3.

It seems to pick up the wrong WiFi Lib...
Using library WiFi at version 1.2.7 in folder: C:\Program Files (x86)\Arduino\libraries\WiFi

I'll remove Arduino WiFi Original Library from my libraries folder and test it again.
But anyway, should it turn on some yellow light?

Error Message from Compiler (it happens with C3 and S3 as target):

'class WiFiClass' has no member named 'mode'

UPDATE 1

I noticed that Compiling with S3 branch outputs a lot of the same warning message below:
<command-line>: warning: ISO C++11 requires whitespace after the macro name

UPDATE 2 - regarding WiFi C3 QIO/DIO issue:

It is confirmed to happen also with S3 brach.
#6027 is an issue.

C3 only runs #6027 STA example when Arduino IDE menu is set to DIO.
QIO generates continuos resets with this message (first boot and following RESETs with WDT problem):

ESP-ROM:esp32c3-api1-20210207
Build:Feb 7 2021
rst:0x1 (POWERON),boot:0xc (SPI_FAST_FLASH_BOOT)
SPIWP:0xee
mode:DIO, clock div:1
load:0x3fcd6100,len:0x420
load:0x403ce000,len:0x90c
load:0x403d0000,len:0x2370
SHA-256 comparison failed:
Calculated: aa1a3928be93313ac51da0f5a7b98a2f7e879a860d87d81c1ca48e1b45efd195
Expected: b6b3c68f4d9f1b7ef7af034358bf209b1e4d6e5cd0250d873938802b1ee08471
Attempting to boot anyway...
entry 0x403ce000
ESP-ROM:esp32c3-api1-20210207
Build:Feb 7 2021
rst:0x8 (TG1WDT_SYS_RST),boot:0xc (SPI_FAST_FLASH_BOOT)
Saved PC:0x403819d6
SPIWP:0xee
mode:DIO, clock div:1
load:0x3fcd6100,len:0x420
load:0x403ce000,len:0x90c
load:0x403d0000,len:0x2370
SHA-256 comparison failed:
Calculated: aa1a3928be93313ac51da0f5a7b98a2f7e879a860d87d81c1ca48e1b45efd195
Expected: b6b3c68f4d9f1b7ef7af034358bf209b1e4d6e5cd0250d873938802b1ee08471

UPDATE 3

Deeper analysis of the issue #6027 indicates that the problem has nothing to do with WiFi!
It has no relationship with wifi.begin() or any WiFi library.

The problem is related to using GPIO13 as LED in the Sketch.
This GPIO is used by ESP32-C3 in QIO Flash access.

To solve it, just change the LED pin in the sketch.
Issue has been closed.

@SuGlider Adopted the S3 lib bulder for Tasmota. The builded framework used with Platformio does compile without any warning for the S3. I can confirm the QIO issue with the C3

Update:

• Hall sensor is not supported.
• Temp sensor is supported (now in progress in ESP-IDF)

Esp-idf 4.4-ESP32 S3
In the function
uint32_t ledc_get_freq(ledc_mode_t speed_mode, ledc_timer_t timer_num)
The clock_Divider in the formula when the frequency is returned is 0 and is used as the denominator
Causes a direct restart when using this function
Prompt message "IntegerDivideByZero"

The Esp - 4.4 ESP32 S3 idf
When sampling with ADC Digi
esp_err_t adc_digi_read_bytes(uint8_t *buf, uint32_t length_max, uint32_t *out_length, uint32_t timeout_ms);
All the data read is zero, even when using the official example, and the related functions return ESP_OK

ESP32 S3 ULP is turned off by default in the Arduino framework

in sdkconfig.h
#define CONFIG_ESP32S3_ULP_COPROC_RESERVE_MEM = 0

Currently there is no way to open it without recompiling the ARDUINO-ESP32 library
Is there any way?

@me-no-dev Are other PSRAM Variants useable than qio? There is just this
https://github.com/espressif/arduino-esp32/blob/esp32-s3-support/tools/platformio-build-esp32s3.py#L298
and if yes, how do i activate (flag, setting) is needed in Platformio

@me-no-dev @maxgerhardt did a suggestion here how to solve Jason2866/platform-espressif32#12 (comment)

For flashing the S3 esptool.py needs a fix since bootloader is not patched for correct flash size.
See espressif/esptool#728 Until it gets merged a updated version is here
A actual s3 branch build for platformio users

platform = https://github.com/tasmota/platform-espressif32/releases/download/v2.0.3/platform-espressif32-2.0.3.zip

EDIT: The PR with the fix for S3 is merged and a updated esptool.py v3.3 is released from espressif

@me-no-dev What reason is there for setting # CONFIG_ESP32_WIFI_ENABLE_WPA3_SAE is not set in sdkconfig? I have enabled WPA3 and it works.

Just looked at the lib builder and realized that the support for WPA3 is there except for the ESP32.
The config is inconsistent at the moment. The code size increase is not big.
(I am fine as it is now, since we use our own builded version, with some different settings)

Hi just tested today git :

seemstools\sdk\esp32s3\include\driver\esp32s3\include\driver\temp_sensor.h miss the corresponding code :|

... core\core.a(esp32-hal-misc.c.o):(.literal.temperatureRead+0x4): undefined reference to `temp_sensor_set_config'
... core\core.a(esp32-hal-misc.c.o):(.literal.temperatureRead+0x8): undefined reference to `temp_sensor_start'
... core\core.a(esp32-hal-misc.c.o):(.literal.temperatureRead+0xc): undefined reference to `temp_sensor_read_celsius'
... core\core.a(esp32-hal-misc.c.o):(.literal.temperatureRead+0x10): undefined reference to `temp_sensor_stop'
... core\core.a(esp32-hal-misc.c.o): in function `temperatureRead':

same for tools\sdk\esp32s3\include\esp_hw_support\include\soc\rtc_wdt.h for example void rtc_wdt_feed(void); => undefined reference tortc_wdt_feed`

the header are there but not the corresponding code/lib ?

Temp Sensor support is not yet implemented

** GPIO interrupts work only on CORE 0 on ESP32-S3. Fix is ready to be merged in esp-idf.

Since this is merged and Arduino libs are compiled with that should not be an issue anymore

Any news from TempSensor support in IDF ?

@VojtechBartoska Thx, for the feedback. Looking at IDF master i dont find the commit. Can you link the commit? I would try a backport myself. Seems not that difficult.

I am confused what branch is the "latest and greatest"? I see @Jason2866 posting his branch and I think I see @me-no-dev uploading to a different location.

Hi sorry - what is the status for temperature sensor ?
the link In progress in IDF IDF-1793 give no data
For what I can test , in 2.0.3 it is not supported so far.
Will be the case in future release ? or is this feature is definitly removed ?

Not pushing - just would like to get status as in 2.0.3 release notes there is no mention of it, even if it is a limitation that temperature sensor is not working for S3 (API is present but link to nothing)

Hello, the functions of esp32 S3 EEPROM and preferences cannot be written normally, but the same program can work normally in esp32 The environment I tested was vscade platformio

#include <Arduino.h>
#include "EEPROM.h"

void setup()
{
// put your setup code here, to run once:
//********************************************
int date;
Serial.begin(115200);
Serial.println("");

EEPROM.begin(4096); //
//
Serial.println("read begin");

int data = EEPROM.read(01); //
Serial.println(data);

Serial.println("read done");
delay(200);
data++;
//
Serial.println("write begin");
Serial.println(data);
EEPROM.write(01, data); //

EEPROM.commit(); //
Serial.println("write done");
delay(5000);
ESP.restart(); //
}

void loop()
{
// put your main code here, to run repeatedly:
}

; PlatformIO Project Configuration File
;
; Build options: build flags, source filter
; Upload options: custom upload port, speed and extra flags
; Library options: dependencies, extra library storages
; Advanced options: extra scripting
;
; Please visit documentation for the other options and examples
; https://docs.platformio.org/page/projectconf.html

[env:esp32-s3-devkitc-1] ;4M
platform = espressif32 @ ~4.4.0 ;@ ~3.5.0
board = esp32-s3-devkitc-1

framework = arduino
monitor_speed = 115200
upload_speed = 1500000

#include <Arduino.h>
#include <Preferences.h>

void setup()
{
// put your setup code here, to run once:
Serial.begin(115200);
Serial.println();
delay(2000);

Preferences prefs; //
prefs.begin("mynamespace"); //
uint32_t count = prefs.getUInt("count", 0); //
//
count++; //
Serial.printf("这是系统第 %u 次启动\n", count);
prefs.putUInt("count", count); //
prefs.end(); //

delay(5000);
ESP.restart(); //
}

void loop()
{
// put your main code here, to run repeatedly:
}

@VojtechBartoska Temp Sensor is supported now in IDF 4.4 with this commit