Search found 515 matches: ADC

Searched query: adc

by ESP_Sprite
Tue Jan 21, 2020 10:38 am
Forum: Report Bugs
Topic: analogSetAttenuation(ADC_11db); bricked my ESP32-WRover-B
Replies: 1
Views: 183

Re: analogSetAttenuation(ADC_11db); bricked my ESP32-WRover-B

How do you figure that bricked the ESP32? As that call has been used and tested before, it sounds unlikely. Could there be some other thing happening around the same time that was the more likely culprit?
by LLofYorkshire
Mon Jan 20, 2020 11:33 pm
Forum: ESP32 Arduino
Topic: Problem with cycling though PWM outputs on timer
Replies: 1
Views: 66

Problem with cycling though PWM outputs on timer

... for any debug. The code: // initiallise the timer conditions hw_timer_t * timer = NULL; hw_timer_t * timer2 = NULL; volatile bool gGetADCflag; volatile bool gCrankPosChangeflag; portMUX_TYPE timerMux = portMUX_INITIALIZER_UNLOCKED; // PWMs are for 11 channel individual Mosfets // setting ...
by iankellogg
Sun Jan 19, 2020 5:06 am
Forum: ESP32 IDF
Topic: i2s-adc-dac demo on IDF 4.1 issues
Replies: 0
Views: 81

i2s-adc-dac demo on IDF 4.1 issues

I have a wrover kit v4 that i've been trying to use to do some simple dsp work. I loaded the i2s-adc-dac demo and tried to play around with the built in ADC. However, I have no been able to get the i2s-adc driver to function at all. Manually reading the ADC such as the ...
by Digital_Pig
Sat Jan 18, 2020 6:48 pm
Forum: ESP32 ADF
Topic: [Solved] Need help with environment setup
Replies: 5
Views: 166

[Solved] Need help with environment setup

Het guys! I thought I'd finally got my environment setup properly for building projects with my Lyra-TD MSC board, but when I try to build the first demo project, it fails. I'm running on a CentOS7 box (headless, not VM). I install ESP-ADF, ESP-IDF, Toolchain for Linux, updated my CMake to 3.6, ran ...
by mhi32768
Fri Jan 17, 2020 9:29 am
Forum: Hardware
Topic: Generating 12 MHz clock for external component
Replies: 3
Views: 439

Re: Generating 12 MHz clock for external component

Thanks, which pin function is then used to output the 12 MHz clock signal to GPIO (TRM chapter 4.9 table ) ? For the first (ADC clk) solution. I am not very familiar with I2S.. About LEDC/PWM, I am not sure but I think frequency cannot be easily changed (base 80MHz) ? And 80 MHz is not ...
by akotowski
Fri Jan 17, 2020 1:25 am
Forum: General Discussion
Topic: ulp code as an esp-idf project component not compiling
Replies: 3
Views: 422

ulp code as an esp-idf project component not compiling

I have adapted the ulp_i2c_bitbang code from the "esp-iot-solution" github directory. It compiles and runs when all the files are in the "main" directory of the project. When I create a separate component directory for the ulp associated files the project does not compile. The assembly (*.S) files a...
by yurik75
Thu Jan 16, 2020 9:18 am
Forum: Report Bugs
Topic: Can't get core dump from flash - Invalid core dump CRC d59a4f1e, should be ffffffff
Replies: 0
Views: 331

Can't get core dump from flash - Invalid core dump CRC d59a4f1e, should be ffffffff

Hi! I have ESP32D0WDQ6 on my custom board. IDF v.3.3.1. Host computer with Windows 10. I modified hello_world example for making abort in task watchdog and trying to get core dump from flash. In menuconfig i set options for writing core dump to flash and for abort when task watchdog timer triggers. ...
by jgustavoam
Wed Jan 15, 2020 12:06 pm
Forum: ESP32 Arduino
Topic: External ADC Question
Replies: 7
Views: 806

Re: External ADC Question

... https://www.elektormagazine.com/labs/esp32-digital-voltmeter https://github.com/Gustavomurta/ESP32-DVM ESP32 - Digital Voltmeter using old style ADC conversion method. High precision, good stability , negative and positive Voltages ! Range -2V to +2V . Method of Voltage measurement - Dual slope ...
by edwi92
Tue Jan 14, 2020 4:51 pm
Forum: ESP32 ADF
Topic: esp-adf use 4 microphones.
Replies: 0
Views: 139

esp-adf use 4 microphones.

Hello guys,

I want to replace AUX with two more microphones. How I can change the audio_hal_adc_input_t to AUDIO_HAL_ADC_INPUT_ALL, /*!< mic input to both channels of adc */
??

Thanks,
Marian
by pwdandekar
Tue Jan 14, 2020 6:36 am
Forum: ESP32 Arduino
Topic: ESP32 core 1 panic'ed when EEPROM and timer interrupt used together
Replies: 0
Views: 89

ESP32 core 1 panic'ed when EEPROM and timer interrupt used together

... Thanks in advance. #include <EEPROM.h> const int analogpin = 36; // feed here 0 to 3.3V analog signal. int analog_count = 0; // variable to store ADC count int address = 0;// EEPROM Address #define eeprom_size 2 // Size of EEPROM 2 bytes to store int variable hw_timer_t * timer = NULL;// define ...

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