Adafruit HUZZAH ESP8266 Breakout

Add Internet to your next project with the Adafruit HUZZAH ESP8266 Breakout, a bite-sized WiFi microcontroller featuring the ESP8266 processor from Espressif. This 80 MHz microcontroller includes a full WiFi front-end supporting client and access point modes, along with a TCP/IP stack with DNS.

Designed for ease of use, this breakout includes a certified module with an onboard antenna and many pins on a breakout PCB with added features:

• Reset button
• User button for bootloading mode
• Red LED for status
• Level shifting on UART and reset pin
• 3.3V, 500mA regulator (supports up to 250mA draw)
• Two diode-protected power inputs (USB and battery)

The board provides breadboard-friendly breakouts with:

• 1 analog input (1.0V max)
• 9 GPIO pins (3.3V logic) usable for I2C or SPI
• 2 UART pins
• 2 power inputs (3-6V), reset, enable, LDO-disable, 3.3V output

An FTDI pinout allows direct connection for serial communication and programming. The HUZZAH comes pre-loaded with NodeMCU's Lua interpreter but also supports Arduino IDE usage with ESP8266 core.

Each order includes one assembled and tested breakout board and a stick of 0.1" header (soldering required). Solderless breadboard and USB serial cable are not included but recommended for programming.

For more details, tutorials, wiring, and pinouts, visit the official Adafruit guide.