ESP-8266 WiFi Module

Specifications: 802.11 b/g/n Serial/UART baud rate: 115200 bps Integrated TCP/IP protocol stack Input power: 3.3V (see "Recommended Accessories" below for 3.3V power options) I/O voltage tolerance: 3.6V Max (see "Recommended Accessories" below for level converters to connect to higher voltage devices (i.e. Arduino) ) Regular operation current draw: ~70mA Peak operating current draw: ~300mA Power down leakage current: <10µA +19.5dBm output in 802.11b mode Flash Memory Size: 1MB (8Mbit) WiFi security modes: WPA, WPA2 Module's dimensions: 24.75mm x 14.5mm (0.974" x 0.571")