UNO R3 + WiFi: ATmega328P + ESP8266 (32Mb memory)

• UNO+WiFi-R3-AT328-ESP8266-32MB-CH340G
• Supply Voltage: 6~9V
• MCU: ATmega328
• WiFi MCU: ESP8266
• USB-converter: CH340G
• PinOut: Uno R3
• Compatible with Arduino Uno
• With capabilities of NodeMCU, WeMos ESP8266

---