ESP8266 Serial WIFI Module

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:Related Linkhttps://nurdspace.nl/ESP8266