ESP32 Forum

Hello all,
Thanks for this forum. I was hoping some of you will have some experience with this board.
I am a little confused about the ESP8266 chip on this board.
I am uploading Arduino sketch via CH340 to ATMega.
If I include Wifi library in my sketch will it use the ESP8266 chip?
FYI I have config switches 3,4,7 ON

Have you tried the test sketch on the Robotdyn product page?
https://robotdyn.com/uno-wifi-r3-atmega ... o-usb.html
This gives you an example of talking to the AT firmware that is preinstalled on the ESP8266 chip.

From this Instructable https://www.instructables.com/UNO-R3-WI ... FI-a-Vers/
it would seem that the ESP8266 needs to be programmed separately.
The ATMega328 and ESP8266 can communicate via the serial bus between both chips.