The ESP 01 or ESP8266 WiFi Module is a self-contained SOC. ESP8266 serial module has integrated TCP/IP protocol stack that can give any microcontroller access to your WiFi network. The esp8266 wifi module Arduino is capable of either hosting an application or offloading all Wi-Fi networking functions from another application processor. Each ESP8266 module comes pre-programmed with an AT command set firmware, meaning, you can simply hook this up to your Arduino device and get about as much WiFi-ability as a WiFi Shield offers (and that’s just out of the box)! The esp 01 connect to wifi module is an extremely cost-effective board with a huge, and ever-growing, community. Specification of ESP01 ESP8266 WiFi Module: 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 1MB Flash Memory Integrated low power 32-bit CPU could be used as an 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) Package Include: 1 x ESP01 ESP8266 WiFi Module In Pakistan