This is probably technically possible. Depending on the exact USB device it may require some additional driver support which may or may not be supported in ESP-IDF.simonliu009 wrote: ↑Fri Jul 12, 2019 3:03 amIs possible to connect ESP32-S2 to a 4G USB dongle and connect to the internet? (not using WIFI)
Note that you can connect an ESP32 to a serial cellular interface right now, we have an example with support for the Quectel BG96 LTE module: https://github.com/espressif/esp-idf/tr ... pos_client - and other modules which support PPP over Serial should be easy to integrate.