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.

• 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 /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
  Solutions
• Supports APSD for optimal VoIP applications
• Patented spurious noise cancellation algorithm for integration in SOC applications
• Supports Bluetooth co-existence interface
• Self-calibrated RF to ensure optimal performance under all operating conditions
• Zero factory tuning
• No external RF components

• 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)
• ESP8266 Serial WIFI Module Communite Forum>> Detail about ESP8266
  
  • High quality & low price
  • LWIP agreement
  • Support 3 modes: AP, STA, AP+STA
  • Perfect and simple AT commands