Dear everyone,

I have a question about ESP32 RTC clock.
As Espressif documents said " RTC timer: Allows keeping the system time during any resets and sleep mode " in documents
https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/system/system_time.html

Every time device ...

Hi every one.
I'm using esp-idf v3.2.2 stable and i have a trouble with WiFi and BLE coexist.
I'm success to config wifi information via custom GATT server. Mobile phone will send information such as SSID, Password... to esp32 via custom GATT server.

But when i'm provide wrong ssid - wrong password ...

In event WIFI_STA_START, i,m try to connect to AP by calling func esp_wifi_connect ( with wrong SSID and password ).
Then BLE service is no more running.

Hi everyone.

My project has wifi and ble gatt server coexist.
I'm able to run program with BLE and WiFi Simultaneously.
I'm able to provide WiFi SSID and Password via ble gatt server, and ESP32 successful connect to AP.
But when i'm trying to config wrong SSID - wrong password, but when esp32 ...

Hi everyone,

Im trying to store large file into spi flash on esp32, the fire size about 250kB.

Everytime i want to store file in to spiflash, i will delete the old file and write a new file to spiffs.

But after some times write data to spiffs region, device cannot save data to spiffs anymore ...

Hi everyone,

My idea is running multi application in flash.
For example, i have 3 application.
One is factory reset, second is bluetooth classic application, and third is bluetooth low energy application.
I'm trying to make wifi, ble and bluetooth audio co-exist, but performance is so bad.
So i ...

Have you enabled LFN (long file names) in menuconfig, Component config, FATFS? If not, you will have to use an 8.3 name for the directory.

Great!!!!
Thank you so much, i did not enable long file name support before.
Problem now solved, thank you.

huybk213: as common with other POSIX functions, you can check the exact error cause using 'errno' variable, if a function has returned -1. You can also use strerror function to convert errno value into a human-readable message.

In this specific case, I would guess that the directory has already ...

Hello,

Which File System you have used for SD card? Because earlier into SPIFFS there was same issue of directory level support was messing.

So, There might be chances of file system issue or something like that.

Dear Ritesh,
My sdcard was formated in FAT32 MODE

Hi everyone,

I'm currently using IDF last version.
I'm trying to run example storage/sd_card.

Sdcard example seem to be good. I want to create new folder using command "mkdir", but mkdir alway return error -1.

All line below is my program and log.

Code void app_main(void)
{
ESP_LOGI(TAG ...