Arduino Uno WiFi

The Arduino Uno Wi-Fi is the new Arduino Uno with an integrated Wi-Fi module! The board is based on the ATmega328P with an ESP8266 Wi-Fi Module integrated. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with an AC-to-DC adapter or battery to get started.

The ESP8266 Wi-Fi Module is a self contained SoC with integrated TCP/IP protocol stack that can give access to your Wi-Fi network. (Or the device can act as an access point.) One useful feature of Uno Wi-Fi is support for OTA (over-the-air) programming, either for transfer of Arduino sketches or Wi-Fi firmware.

WIFI MODULE:
Processor: ESP8266
Architecture: Tensilica Xtensa LX106
Operating Voltage: 3.3 V
Flash Memory: 4 MB
RAM: 8 MB instruction, 12 MB data
Clock Speed: 80 MHz
WiFi: 802.11 b/g/n 2.4 GHz
Wake up time: < 2 ms

ARDUINO MICROCONTROLLER
Microcontroller: ATmega328
Architecture: Atmel AVR 8-bit
Operating Voltage: 5 V
Flash memory: 32 KB
SRAM: 2 KB
Clock Speed: 16 MHz
Analog I/O Pins: 6
EEPROM: 1 KB
DC Current per I/O Pins: 40 mA

GENERAL
Digital I/O Pins: 20
PWM Output: 6
Power Consumption: 93 mA
PCB Size: 53 x 68.5 mm