Ok so I searched around menuconfig and found the option CONFIG_LWIP_TCP_SND_BUF_DEFAULT. Bumping this to the maximum possible value (65535) yielded 184 kB/s. Better, but not quite what I expected. Tried bumping CONFIG_LWIP_TCP_WND_DEFAULT to 65535 also, but it didn't have any impact on transfer spee...

I found this topic: https://esp32.com/viewtopic.php?t=5844 and it seems to be related to my problem. Using wireshark I can see very small bursts of data coming from the ESP32, then some ACKs from the server, then again another small burst of data, etc: https://i.imgur.com/dXCmaR6.png Is there any wa...

Hi guys, I'm currently working on a project using ESP32-CAM to capture AVI files and upload them to an S3 bucket. Right now everything works, but the upload speed to my S3 bucket is ridiculously slow: I'm currently getting 25 kB/s !! I tested my board using the iperf example and was able to achieve ...

Thanks! Reading your reply it seemed obvious; the UART that is not "talking" wants to drive TX high (idle), so nothing can go through. Not sure why it didn't occur to me.

PD: This was my first time using the forum and I'm amazed at how fast you replied! Thanks again

Hello, I'm currently working with an ESP32-CAM board, so I don't have many pins available for external communication (I'm using both the camera and the PSRAM). I need to communicate the board via RS485, so I need 3 pins to make it work. I'm currently using GPIO12 (the only "free" pin I have left) fo...