Hello, I am using a PICO D4, and trying the example of AP mode.
So far, I don't have the problem in sta mode.
When this error comes up, the data transfering is impossible.
This problem is random. Most of the time, ESP32 works well.

I (614270) wifi: ampdu: ignore deleting tx BA0
I (614270) wifi ...

Good, the company is on stock market now.
I really hope that the company also have a module like PICO-D4-S2 in the future. I will like it even the size increases to 9x9mm or 10x10mm

Anyone tested it on esp32-pico-d4 yet?

Please note that PICO and D2WD are not supported in combination with PSRAM yet:
https://github.com/espressif/esp-idf/bl ... #L480-L489

Thank you, then I am thinking to use ESP32-D0WD with PSRAM32 instead.

thanks for updating

revised_v1.0_31.08.2017.png

ESP32-PICO-D4 datasheet V1.0 from 31. August 2017
esp32-pico-d4_datasheet_en_V1.0_vom_31.08.2017.pdf

src now online again

best wishes
rudi ;-)
Hi, rudi,
I must say you did a great job here.
So, an External PSRAM work with these two chips ...