ESP32 Forum

I'm using new ESP32-S2 for my next design. My main MCU will be communicating with ESP32-S2 via UART using AT Commands.
In the hardware design guidelines, it is written that the SPI Flash is Compulsory (PFA).

So my question is, since I will be communicating using AT commands and will not be loading code in it, is it really necessary to add SPI flash in my schematics?

Thanks!
Sumit

There is nothing in the ESP32-S2 chip itself that can interpret AT commands; you need the flash because the AT command interpreter needs to be uploaded there.