robotdyn -> UNO+WiFi R3 ATmega328P+ESP8266 Init

Hi, I have managed to pass code to the ESP8266 module so that it connects to the Wi-Fi and works correctly.

Apart I have managed to send code to the arduino (MCU) but I do not understand how to communicate when I have a web server and enter a request to turn on pin 13 of the arduino.

Thank you so much
P.D I am new and Spanish excuse my English (Google Translate :grinning: )

The motherboard is: http://robotdyn.com/uno-wifi-r3-atmega328p-esp8266-32mb-flash-usb-ttl-ch340g-micro-usb.html

read here

I'm having a problem with a similar board.

I am able to program the UNO and the ESP8266 separately by setting the dip switches but I think I am also supposed to be able to program/use the board:

USB -> UNO -> ESP8266

I have set the dips: 1-ON, 2-ON, 3-ON, 4-ON, 5-OFF, 6-OFF, 7-OFF, 8-OFF

Is there a way to find out how the two modules are internally connected? My intention is to get the UNO and ESP8266 to work together without having to wire externally.

it is simple. tx and rx of usb, Atmega and esp8266 are reconnected with swithes. on robotdyn shop page is a schema