This is WiFi serial transceiver module (ESP-03) , supported ESP8266 SoC. The SoC has Integrated TCP/IP protocol stack, making it highly useful in applications of Internet of Things (IoT). The range of operation of this module is nearly up to a couple of kilometers making it an excellent solution for robot applications that require remote .
ESP-03 features a built-in ceramic antenna, 7 GPIO pins, and UART (Rx,Tx) pins for communication with other devices.
ESP8266 may be a highly integrated chip designed for the requirements of a replacement connected world. It offers an entire and self-contained Wi-Fi networking solution, allowing it to either host the appliance or to dump 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 therefore the entire solution, including front-end module, is meant to occupy minimal PCB area (about an equivalent size as a penny and smaller than ESP-01 Module). 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 top 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.
