Adafruit Feather HUZZAH ESP8266
Feather-format ESP8266 with LiPo support - perfect for portable Wi-Fi projects and CircuitPython use.
51 × 23 mm
ESP8266
MCU
160MHz
clock
4MB
flash
~80KB
SRAM
17· 1 ADC
GPIO
Wi-Fi
radio
Pinout
Getting started
flash your first firmware in ~2 minutes1
Connect over USB
Serial chip: CP2104. Not detected? Hold BOOT while plugging in.
2
Flash with your tool
Arduino IDE, PlatformIO, ESPHome or esptool - copy the settings on the right.
3
Verify it runs
The blink example uses GPIO8 - swap for your board's LED pin if different.
Board: Esp8266 Adafruit Huzzah
Flash Size: 4 MB · QIO
Upload Speed: 921600
// blink
pinMode(8, OUTPUT);
digitalWrite(8, LOW); // on (often inverted)[env:huzzah]
platform = espressif32
board = esp32dev
framework = arduino
monitor_speed = 115200
upload_speed = 921600esp32:
board: esp32dev
variant: adafruit
framework:
type: esp-idf
# blink - GPIO8
output:
- platform: gpio
pin: 8
id: led_out
light:
- platform: binary
name: "LED"
output: led_outesptool.py --chip esp8266 --port /dev/ttyACM0 \
write_flash 0x0 firmware.binSpecifications
ESP8266 · 51 × 23 mmCompute
MCU
ESP8266
Clock
160 MHz
SRAM · Flash
~80 KB · 4 MB
Radio
Wi-Fi
802.11 b/g/n
Bluetooth
-
Antenna
PCB
I/O
GPIO · ADC
17 · 1
UART · I²C · SPI
2 · 1 · 2
PWM
-
Power
USB
Micro-USB
Serial
CP2104
Boot address
0x0000
Flashing
Upload · OTA
esptool · esp_ota
Flash · Boot mode
QIO · -
Sketch · Data
- · 80 KB
51 × 23 mm · pin pitch 2.54 mm
The Adafruit Feather HUZZAH ESP8266 uses esptool for firmware uploads, esp_ota for over-the-air (OTA) updates. Flash mode is QIO.
About this board
Expect to pay about $14.95 - in line with other ESP8266 boards.
The Adafruit Feather HUZZAH ESP8266 (also called the Feather HUZZAH or Adafruit HUZZAH ESP8266) is a Wi-Fi development board built on Espressif's ESP8266 with 4 MB of flash and a SiLabs CP2104 USB-to-serial chip for programming. It uses Adafruit's Feather form factor for the stacking FeatherWing ecosystem and adds a built-in 100mA LiPo battery charger with JST connector plus onboard status LEDs. That makes it well suited to portable, battery-powered Wi-Fi IoT projects. In this guide, you'll find the Feather HUZZAH ESP8266 pinout, datasheet, technical specs, and setup instructions.
Resources
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