https://docs.espressif.com/projects/esp ... /gpio.html

GPIO34-39 can only be set as input mode and do not have software pullup or pulldown functions.

100% what he said^^^^^^^^^^^ I know complete waste of an ESP but that all I am using at the moment: #include "sdkconfig.h" #include "esp32/ulp.h" #include "driver/rtc_io.h" #include "esp_system.h" //This inclusion configures the peripherals in the ESP system. #include "freertos/FreeRTOS.h" #include ...

One can use the EEPROM library to store data in flash.

You might want to hunt down and install the "esp exception decoder arduino", it could provide some help with hunting down the issue.

Buffer. My current thing do is about using a Ring Buffer. void fSendSerialToBrain( void *pvParameters ) { CAN_frame_t rx_frame; xSemaphoreGive ( sema_SendSerialToBrain ); bool PassTwo = false; for (;;) { xEventGroupWaitBits (eg, evtSendSerialToBrain, pdTRUE, pdTRUE, portMAX_DELAY); size_t item_size;...

Also, I found that by sampling the ADC regularly once a mS or so, and applying the Simple Kalman filter to the results https://github.com/denyssene/SimpleKalmanFilter , the output gets real smooth. Even if the A:D converter values are not displayed regularly, like once a second, getting several read...

This is not true // For ESP32 the GPIO pwm pins are: 0,1,2,3,4,6,7,8,9,10,11,12,14,16,17,18,19,21,22,23,25,26,27,32,33,34,35,36,39 All the GPIO pins above 32 are input only // For ESP32 the GPIO pwm pins are: 0,1,2,3,4,6,7,8,9,10,11,12,14,16,17,18,19,21,22,23,25,26,27,32 is correct. Anyway, not used...

Just courious if you expect these values to go negative uint16_t ACW = total[0] / numReadings; // AzimuthCW uint16_t ACCW = total[1] / numReadings; // AzimuthCCW uint16_t ECW = total[2] / numReadings; // ElevationCW uint16_t ECCW = total[3] / numReadings; // ElevationCCW ? A uint16_t cannot store a ...

I use the ESP32 SPI API to do the SPI thing. https://docs.espressif.com/projects/esp-idf/en/latest/api-reference/peripherals/spi_master.html here is the 'main' code #include "sdkconfig.h" // for log_x #include "esp_system.h" //This inclusion configures the peripherals in the ESP system. #include "es...

I get great results from the built in A:D's and an example of the way I am using the ADC. #include <driver/adc.h> setup() { // https://dl.espressif.com/doc/esp-idf/latest/api-reference/peripherals/adc.html // set up A:D channels adc1_config_width(ADC_WIDTH_12Bit); adc1_config_channel_atten(ADC1_CHAN...