Hello I am trying to write some data to an SD card on an OLIMEX ESP32-EVB. Starting from the examples in esp-idf and from olimex, this works fine. However, when I want to put this in a freertos task, I always get errors: E (16919) sdmmc_cmd: sdmmc_read_sectors_dma: sdmmc_send_cmd returned 0x107 E (1...

Does someone have a clue of what I am doing wrong?

Hello I have two ESP32 boards and I want to send data from one to another using the SPI sender and receiver example(esp-idf/examples/peripherals/spi_slave). Using the example code this works for sending strings. However, I would like to send an integer array from the slave to the master (and afterwa...

I am wondering what the best way is of sampling with constant intervals on the ESP32. I have some experience with TI C2000 microprocessors where you need to set timers to generate interrupts to sample a certain ADC. I always found it quite a lot of work and when I read about the FreeRTOS scheduler i...

Hello I am a complete new user to the ESP32 so my apologies for any stupid questions, here we go: I started this week exploring the ESP32 using eclipse version 19-09 and am able to build and run templates such as hello world, blink, adc2,.. using eclipse. I have a colleague who wrote some code that ...