Search found 232 matches

by krzychb
Sat Jan 26, 2019 6:51 pm
Forum: ESP32 ADF
Topic: Need help to start with ESP32 Audio Framework
Replies: 4
Views: 1061

Re: Need help to start with ESP32 Audio Framework

Hi Ritesh, There are two development boards supported by majority of examples in ESP-ADF: ESP32-LyraT and ESP32-LyraTD-MSC * ESP32-LyraT has been the first development board supported by ESP-ADF and therefore most of examples are written for this particular board * Even if there is a smaller number ...
by krzychb
Wed Jan 09, 2019 10:14 pm
Forum: ESP32 ADF
Topic: Issues with voice activity detection
Replies: 3
Views: 1169

Re: Issues with voice activity detection

Hi dgube1,

VAD example is prepared and currently in review for release in esp-adf repository.
by krzychb
Mon Jan 07, 2019 11:39 am
Forum: General Discussion
Topic: Circular buffer implementation
Replies: 2
Views: 1012

Re: Circular buffer implementation

Hi woju93,

Yes, there is a ringbuffer component in ESP-IDF together with detailed documentation.
by krzychb
Thu Jan 03, 2019 8:03 pm
Forum: General Discussion
Topic: GPIO state in deep sleep
Replies: 1
Views: 493

Re: GPIO state in deep sleep

Hi Adham Aboud,

The GPIO state in deep sleep is floating unless specifically configured, see viewtopic.php?f=13&t=1966&p=9295#p9300
by krzychb
Mon Dec 31, 2018 7:03 pm
Forum: ESP32 IDF
Topic: Powering ESP32 WROVER Dev Kit with Batteries
Replies: 4
Views: 903

Re: Powering ESP32 WROVER Dev Kit with Batteries

Hi czuvich,

Basing on ESP-WROVER-KIT V4.1 Schematic, there is NCP1117 voltage regulator behind the barrel jack. According to the datasheet it has max 1.2V dropout voltage. To be on the safe side I would use 5 x NiMH batteries.
by krzychb
Sun Dec 23, 2018 7:34 am
Forum: ESP32 Arduino
Topic: how To use the LEDC/PWM functions
Replies: 3
Views: 982

Re: how To use the LEDC/PWM functions

khalil_dz wrote:can we use the function "" ledc_timer_config() "" on arduino ;

Hi khalil_dz,

Yes, here is an example how.
by krzychb
Wed Dec 19, 2018 11:19 am
Forum: General Discussion
Topic: Memory math
Replies: 3
Views: 655

Re: Memory math

Hi Zeni241,
Allocation of flash memory is defined in partition table.
For default configuration of Arduino it covers space for OTA as well.
Check, e.g. viewtopic.php?f=19&t=4349&p=19383
by krzychb
Sat Dec 15, 2018 10:08 am
Forum: ESP32 Arduino
Topic: could I to generate 40Mhz pulse on esp32 GPIO
Replies: 10
Views: 2098

Re: could I to generate 40Mhz pulse on esp32 GPIO

Hi NewPrasertKitt, The simplest approach is to use on board peripherals to generate the pulse and do not engage the CPUs directly. In this case I propose LED Controller. #include "driver/ledc.h" #define PULSE_OUTPUT_PIN 4 void setup() { ledc_timer_config_t ledc_timer; ledc_channel_config_t ledc_chan...
by krzychb
Fri Dec 07, 2018 6:40 am
Forum: ESP32 ADF
Topic: Questions about LyraT Boards
Replies: 2
Views: 1190

Re: Questions about LyraT Boards

Hi tedwood, There are several differences. On the hardware site this includes codec chips used, number and type of microphones, number and type of control buttons and LEDs. On the software side, from developer point of view, there are far more code examples now for the ESP32-LyraT, as drivers for th...
by krzychb
Thu Dec 06, 2018 2:47 pm
Forum: General Discussion
Topic: How to obtain documented assembly listing ?
Replies: 4
Views: 1053

Re: How to obtain documented assembly listing ?

Hi PaulVdBergh,

FWIW when using ESP32 with JTAG you can see (and navigate through) both the C code and machine code side by side.

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