Module Wifi ESP8266 ESP-12

This is WiFi serial transceiver module, based on ESP8266 SoC. 
Module ESP-12 laf module loại nhỏ của mo dule ESP8266 - dùng chung 1 chip ESP8266

The SOC has Integrated TCP/IP protocol stack 

ESP8266 is a highly integrated chip designed for the needs of a new connected world. It offers a complete and self-contained Wi-Fi networking solution, allowing it to either host the application or to offload all Wi-Fi networking functions from another application processor.
 
ESP8266 has powerful on-board processing and storage capabilities that allow it to be integrated with the sensors and other application specific devices through its GPIOs with minimal development up-front and minimal loading during runtime. Its high degree of on-chip integration allows for minimal external circuitry, and the entire solution, including front-end module, is designed to occupy minimal PCB area.
 
Corresponding Interface:
    SDIO 2.0, SPI, UART
    32-pin QFN package
    Integrated RF switch, balun, 24dBm PA, DCXO, and PMU
    Integrated RISC processor, on-chip memory and external memory interfaces
    Integrated MAC/baseband processors
    Quality of Service management
    I2S interface for high fidelity audio applications
    On-chip low-dropout linear regulators for all internal supplies
    Proprietary spurious-free clock generation architecture
    Integrated WEP, TKIP, AES, and WAPI engines
 
Specification:
    802.11 b/g/n
    Wi-Fi Direct (P2P), soft-AP
    Integrated TCP/IP protocol stack
    Integrated TR switch, balun, LNA, power amplifier and matching network
    Integrated PLLs, regulators, DCXO and power management units
    +19.5dBm output power in 802.11b mode
    Power down leakage current of <10uA
    Integrated low power 32-bit CPU could be used as application processor
    SDIO 1.1/2.0, SPI, UART
    STBC, 1×1 MIMO, 2×1 MIMO
    A-MPDU & A-MSDU aggregation & 0.4ms guard interval
    Wake up and transmit packets in < 2ms

    Standby power consumption of < 1.0mW (DTIM3)

• Dimensions: 24mm x16mm x 3mm / 0.9" x 0.6" x 0.1"
• Weight: 2g
• 4MB Flash
• ESP8266 specification sheet
• FCC test report for the module (FCC ID:  2ADUIESP-12)
• CE test report for the module
• Huuuuge amount of information on http://www.esp8266.com/ community forum!
• NodeMCU (Lua for ESP8266) webpage with examples and documentation on the Lua framework
• Arduino IDE support for ESP8266
• Don't forget to visit esp8266.com for the latest and greatest in ESP8266 news, software and gossip!