It is a customized version of the classic ARDUINO MEGA R3 board. Full integration of Atmel ATmega2560 microcontroller and ESP8266 Wi-Fi IC, with 32 Mb (megabits) of flash memory, and CH340G USB-TTL converter on a single board! All components can be set up to work together or independently.
| 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 RAM Type/Size | 8Kb |
| Data ROM Type/Size | 4Kb |
| Interface Type | serial\OTA |
| Operating temperature | −40С°/+125С° |
| Length×Width | 53.361×101.86mm |