ESP-12K with WiFi Modules ROHS, manufactured by Ai-Thinker, is a miniature, low-powered, high-performing yet cost-efficient WiFi module. It is based on an ESP8285 Wi-Fi controller, and uses an on-board 2.4GHz Wifi chipset with an integrated low power 32-bit MCU. This module supports 802.11 b/g/n protocol and it is a 4M-bit, low cost unit. It is well suited for wireless home automation, office use, or more general industrial markets. ESP-12K with WiFi Modules ROHS is designed for applications that require small size, low power consumption, simple control and smart connections in various nodes. It supports a variety of security modes such as WEP, WPA/WPA2 and WPA2-Enterprise to encrypt the data stream and provide a secured connection for high-level cryptography protocol. It's powerful, highly integrated and has advanced low-power antenna-based connection capabilities.