Features Advanced Semi-Hole Chip Technology: Experience enhanced performance with all IO leads accessible, encased in a durable metal shielding shell for reliable operation Versatile Antenna Options: Choose between an IPX external antenna or a built-in ceramic antenna, ensuring optimal signal strength for varied applications Comprehensive Wireless Standard Support: Enjoy seamless connectivity with support for 802.11b/g/n standards, making it ideal for modern networking needs Multiple Working Modes Available: Easily switch between STA, AP, and STA+AP modes for flexible functionality tailored to your project requirements Robust Built-In TCP/IP Protocol Stack: Connect multiple TCP clients simultaneously, enhancing your project's efficiency and network capabilities Features: 1、Semi-hole chip technology, all the IO leads, with metal shielding shell 2、IPX external antenna, can also be built-in ceramic antenna. 3、Support wirel 802.11b /g/n standard 4、 Supports three working modes:STA/AP/STA+AP 5、 The built-in TCP/IP protocol stack supports multiple TCP Client connections Specification: ESP8266 is a WIFI Transceiver Module with ultra-low power consumption,User's physical device can be connected to the wi-fi wirel network for Internet or LAN communication and networking functions. It can be widely used in smart power grid, intelligent transportation, intelligent furniture, handheld equipment, industrial control and other fields. Features: Semi-hole chip technology, all the IO leads, with metal shielding shell IPX external antenna, can also be built-in ceramic antenna. Support wirel 802.11b /g/n standard Supports three working modes: STA/AP/STA+AP The built-in TCP/IP protocol stack supports multiple TCP Client connections Supports rich Socket AT instructions Supports UART/GPIO data communication interface Supports Smart Link Smart networking Supports remote firmware upgrade (OTA) The built-in 32-bit MCU can double as application procor Low energy consumption, suitable for battery power supply applications Specification: Module AT+Instruction set, Web page Android/iOS terminal, Smart Link smart configuration APP Package list: 1 x WIFI Transceiver Module Package List