It is a customized version of the classic ARDUINO UNO R3 board. Full integration of microcontroller Atmel ATmega328 and IC Wi-Fi ESP8266 with 8 MB flash memory, and USB-TTL converter CH340G on one board. All modules can work together or independently.
| Microcontroller | ATmega328 |
| 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 | 14 |
| Analog I/O | 6 |
| Memory Size | 8Mb |
| Interface Type | serial\OTA |
| Operating temperature | −40С°/+125С° |
| Length×Width | 53.34×68.58mm |
| Weight | 8 |
| antenna | Buil-in\external antenna
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