ACROBOTIC ESP8266 ESP12E Serial to WiFi Module IOT Compatible with Arduino NodeMCU

The ESP8266 Serial-to-WiFi adapter created by Espressif has seen a wide adoption as a cost-effective solution for IoT and WiFi-capable devices. This tiny-sized System On a Chip (SoC) includes an 80 MHz microcontroller with a full WiFi front-end (both as client and access point) as well as a full TCP/IP stack with DNS. Because the ESP8266 comes only in a Surface-Mount package, a few different vendors have developed modules labeled ESP-NN where NN are numbers ranging from 01 to 13 (at the time of this writing). Like all ESP-NN modules, the ESP-12E has a small footprint. Even though its castellated pins make it hard to work with on a breadboard, they are easy to solder to a PCB. The ESP-12E module breaks out all the usable GPIO of the ESP8266, and it carries a visible LED for indicating status. Under the tin can, the ESP-12E has a 4MB SPI flash storage IC–typically the Winbond W25Q32FV, and other necessary components. It also includes an onboard antenna (~–80dBm @50ft). Features: 17 GPIO (save for D0, every GPIO can be PWM, I2C (software), 1-wire) ESP-12E Wi-Fi module containing the ESP8266 IC Onboard copper-trace antenna (Meandered Inverted-F Antenna (MIFA)) Integrated TCP/IP stack 22 castellated-pin 2mm-pitch configuration Specifications: Supported protocols: 802.11 b/g/n Serial/UART baud rate: 115200bps Input voltage: 3.3V Max I/O voltage: 3.6V Regular operation current draw: ~70mA Current draw (peak): ~300mA Power-down leakage current: <10µA Output power: +19.5dBm (802.11b) Flash Memory Size: 1MB (8Mbit) WiFi security modes: WPA, WPA2 Module's dimensions: 24.75mm x 14.5mm (0.974" x 0.571") We have written useful guides with additional info on the ESP8266 and ESP-12E module: http://learn.acrobotic.com/tutorials/post/what-is-the-esp8266