ESP8266 ESP-01 WiFi Wireless Tranceiver Module 1MB Flash

These modules include 1MB (8Mbit) of flash memory, twice the size of the older blue colored ESP-01 module The ESP8266 Serial/UART to Wi-Fi module is a great way to connect your Arduino or other microcontroller projects to a Wi-Fi network Create your next internet of things (IOT) project with affordable network connectivity by implementing this module into your design The module has the ability to run independent of a host controller The eight-pin header includes two GPIO pins that allow for direct connection of the module to sensors, peripherals, or host controller Check out our ESP8266 breadboard adapter to use your ESP8266 module with a breadboard The ESP8266 has 3.6V tolerant I/Os so you will need a logic level converter to connect it with higher voltage devices such as Arduino The ESP8266 requires 3.3V power so you may need a 3.3V voltage regulator to provide the correct voltage, depending on your setup 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") Resources ESP8266 Datasheet ESP8266 Technical Reference ESP8266 AT Instruction Set ESP8266 AT Command Examples Great information and support community  Kolban’s book on the ESP8266  ESP8266 Weather Display Tutorial (from Zeflo) ESP8266 with Raspberry Pi (by Razvan Dubau) Pinout