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by loboris
Tue Sep 18, 2018 6:19 am
Forum: General Discussion
Topic: Task WD seems useless
Replies: 7
Views: 127

Re: Task WD seems useless

If you implement a function with this name (without the "__attribute__((weak))") in a source file of your project, it will become the handler. The only requirement is that this source file must get linked into the project - this means that the function has to be in a source file which als...
by loboris
Wed Sep 12, 2018 10:08 pm
Forum: ESP32 IDF
Topic: Enable Time stamp on FatFs SD card
Replies: 10
Views: 290

Re: Enable Time stamp on FatFs SD card

Just set the right system time using SNTP or otherwise. The file timestamp is set when file is created or modified.
The code was executed after boot with no time set.
by loboris
Wed Sep 12, 2018 7:47 pm
Forum: ESP32 IDF
Topic: Enable Time stamp on FatFs SD card
Replies: 10
Views: 290

Re: Enable Time stamp on FatFs SD card

Why do you think files on SD Card do not have timestamp? Here is simple example, the result printed from this simple loop: vTaskDelay(5000 / portTICK_RATE_MS); for (int n=1; n<5; n++) { ESP_LOGI(TAG, "Opening file"); f = fopen("/sdcard/hello.txt", "w"); if (f == NULL) ...
by loboris
Sat Sep 08, 2018 4:30 pm
Forum: ESP32 IDF
Topic: Dth22 sensor with esp idf
Replies: 3
Views: 105

Re: Dth22 sensor with esp idf

It should be quite easy to adapt the library for isp-idf.
My point was it is very easy to find the library on GitHub, if you search for it. There are many which are not written for adruino.
by loboris
Sat Sep 08, 2018 7:50 am
Forum: ESP32 IDF
Topic: Dth22 sensor with esp idf
Replies: 3
Views: 105

Re: Dth22 sensor with esp idf

There are many. Just search the Internet and/or GitHub.
For example https://github.com/bertmelis/esp32DHT
by loboris
Fri Sep 07, 2018 7:40 am
Forum: ESP32 IDF
Topic: Error when trying to connect to Web server via Wifi while Bluetooth is on: bcn_timout, alloc fail
Replies: 15
Views: 820

Re: Error when trying to connect to Web server via Wifi while Bluetooth is on: bcn_timout, alloc fail

I think low-level wifi tasks always runs on core0 (and you cannot change it). You can create your application tasks pinned to core1 or core0.
by loboris
Fri Sep 07, 2018 7:19 am
Forum: General Discussion
Topic: Field initialization of product
Replies: 12
Views: 393

Re: Field initialization of product

You can use BT (RFCOMM) for the same functionality. If you want to use the default serial port, you should supress the ROM bootloader messages by holding GPIO15 at ground during power on and disable or redirect ESP_LOGx. Nothing will be output on the default serial port and you can use UART0 in the ...
by loboris
Thu Sep 06, 2018 1:42 pm
Forum: Showcase
Topic: FT81X shield for ESP32 DevKitC
Replies: 9
Views: 394

Re: FT81X shield for ESP32 DevKitC

Which display you've had in mind for the 50-pin connector? On Buydisplay I couldn't find any matching your 50-pin connector pinuot.
by loboris
Thu Sep 06, 2018 1:17 pm
Forum: Showcase
Topic: FT81X shield for ESP32 DevKitC
Replies: 9
Views: 394

Re: FT81X shield for ESP32 DevKitC

Yes, I understand your reasoning. The remark about using the module was made because I've had an idea to make a kind of wifi display board (ESP32+FT81x) myself. FT81x audio is not great, but acceptable, better than the audio produced with ESP32 DAC. I have recently implemented full support for FT8xx...
by loboris
Thu Sep 06, 2018 8:14 am
Forum: Showcase
Topic: FT81X shield for ESP32 DevKitC
Replies: 9
Views: 394

Re: FT81X shield for ESP32 DevKitC

Adding an audio amplifier connected to FT812/FT813 audio output could be useful (possible with a speaker onboard).
BTW, why not use ESP32-WROOM/ESP32-WROVER module instead of ESP32 DevKitC socket and make a complete standalone graphics board?

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