Mega 2560 + WiFi R3 ATmega2560 + ESP8266 USB-TTL for Arduino Mega NodeMCU -UK
ESP32, ESP8266. For this on board have the USB-serial converter CH340G. Arduino Starter Kits. Arduino, Raspberry Pi Sensors. Arduino Shields. YOU MIGHT ALSO LIKEVIEW ALL OUR PRODUCTS. The board has DIP-switch, to connect the modules.