Specifications Microcontroller ATmega2560 IC Wi-Fi  ESP8266 USB-TTL converter CH340G Power Out 5V-800mA Power IN. USB 5V (500mA max.) Power IN. VIN/DC Jack 9-24V Power Consumption 5V 800mA Logic Level 5V Wifi Wi-Fi 802.11 b/g/n 2.4 GHz USB Micro USB Clock Frequency 16MHz Operating Supply Voltage 5V Digital I/O 54 Analog I/O 16 Memory Size 256kb Data … Continue reading MEGA+WiFi R3 ATmega2560+ESP8266, flash 32MB, USB-TTL CH340G, Micro-USB