Hi Reeshma,

I suggest the following:

1. Install Arduino IDE
2. Get blink.ino example working.
3. Get another example (that shows how to read digital input) working.

At this point you should be able to write a program doing what you described.

I use I2S DMA way to collect data from camera. Wifi is connecting,according my investigation,when esp32 collects data from camera ,more or less a pixel occured randomly. I can almost guarantee you its the DMA controller. Same problem of random bytes being changed in the SPI Driver ONLY when used wi...

@PeWosT, Sorry, I did not notice you have been posting in ESP32 Arduino forum. In Arduino, NVS is implemented with Preferences library. The library includes an example that shows how to save / read an integer counter. As you like to save strings, then adopt this example using putString / getString m...

Hi PeWosT,

Check NVS (Non-Volatile Storage) https://github.com/espressif/esp-idf/tr ... s_rw_value

For battery projects you probably want the new rev. For audio projects you probably want the new rev.

I would add camera projects to this list.
This is when processing of images above QVGA grey scale is required.

For my current projects I am more than happy with rev. 0.

I have created an example which illustrates deep sleep'ing and counting low pulses on GPIO0:

Very informative, neat example.
Thank you!

Hi kaskas,

See https://github.com/espressif/esp-idf/tr ... ocols/sntp

Hey @ManuelS,

Basing on randomness of output and when it happens, this looks like some h/w problem.

Did you manage to successfully run other examples?

I would try the following examples and check for healthy output on UART:
1. get-started/hello_world
2. protocols/sntp

Krzysztof

Hi @amalamal, Example of writing binary data to SD card using this very driver and fwrite is here . Basically you need to replace in your code fprintf with fwrite and provide this function with: 1. pointer to your jpeg image, 2. number of bytes of the jpeg image, 3. 1 - to write one set of the "numb...

@Lurcher, I have checked spi_master example with esp-idf-v2.0-rc1. It compiles and works without any issues. For the issue you report I would try the following: 1. Get clean and complete copy of ESP-IDF from GitHub by executing git clone --recursive https://github.com/espressif/esp-idf.git 2. Build ...