Thanks for the answer. I've been doing tests with SDMMC (4 bits) using Arduino and it works perfectly That's what I'm saying. Using Arduino the example works (not at all speeds but at the highest ones does), the problem is that doesn't work using ESP-IDF. The ESP-IDF example only works in 1 bit mode.

I'm doing some experiments for a project in which I need a SDCard for storage, and by now the results are weird and I can't find why. Using ESP-IDF (v5.0.1): 4 bit interface: does not work at any bus speed. Always get CRC error at SDCard init: sdmmc_init_sd_ssr: sdmmc_send_cmd returned 0x109 1 bit i...

I'm not sure if this is the subforum where I've to post it. The thing is that I was developing an ESP32 project that had some power and current restrictions, so I bought an USB power meter with a micro USB data interface. But the manufacturer's software doesn't work in Linux and doesn't work very we...

I've solved it with the following steps:

1. Execute the install.sh script in esp home directory
2. Delete (or rename) the old python env directory
3. fullclean the project and rebuild it

This is not a solution, only a workaround.

Using UDP sockets I can get those speeds. But now I don't know if the packet arrives or not.

Hello. I'm using the idf on an arch linux computer, and I've installed the python 3.8 update yesterday. Now the idf can't build projects, it throws an error where generating esp32.project.ld. The error is: error while loading shared libraries: libpython3.7m.so.1.0: cannot open shared object file: No...

I'm working on a project with an esp32-cam that sends images through lwip sockets The problem is that sending is very slow. I've measured the time that the send function takes for the image buffer obtaining an average bandwidth of 400kb/s. I've tried to modify some of the socket options, send buffer...