ESP8266

Adafruit Feather Huzzah ESP8266

Measures 2.0" x 0.9" x 0.28" (51mm x 23mm x 8mm) without headers soldered in
Light as a (large?) feather - 9.7 grams
ESP8266 @ 80MHz with 3.3V logic/power
4MB of FLASH (32 MBit)
Built in WiFi 802.11 b/g/n
3.3V regulator with 500mA peak current output
CP2104 USB-Serial converter onboard with 921600 max baudrate for speedy uploading
Auto-reset support for getting into bootload mode before firmware upload
9 x GPIO pins - can also be used as I2C and SPI
1 x analog inputs 1.0V max
Built in 100mA LiPoly charger with charging status indicator LED,
can also cut a trace to disable the charger
Pin #0 red LED for general purpose blinking.
Pin #2 blue LED for bootloading debug & general purpose blinking
Power/enable pin
4 mounting holes
Reset button

Adafruit: esp8266/pinouts



Adafruit ESP8266 Arduino README	https://github.com/Ark-IoT/ark-hackathon/wiki/Adafruit_ESP8266_Arduino

Adafruit Feather Huzzah ESP8266: Overview	https://learn.adafruit.com/adafruit-feather-huzzah-esp8266/overview

How To: Up and Running with Adafruit HUZZAH Feather ESP8266	http://imaginen4tion.blogspot.com/2015/12/how-to-up-and-running-with-adafruit.html

espressif.com: ESP8266 SDK's and Demos	http://espressif.com/en/support/download/sdks-demos

ESP 8266 Non-OS SDK API Reference	http://espressif.com/sites/default/files/documentation/2c-esp8266_non_os_sdk_api_reference_en.pdf

github: ESP8266 and Arduino	https://github.com/chaeplin/esp8266_and_arduino



Node MCU for ESP8266	http://nodemcu.com/index_en.html

github: Adafruit ESP8266	https://github.com/adafruit/Adafruit_ESP8266

github: Espressif ESP8266 Arduino Library	https://github.com/esp8266/Arduino

github: Espressif/ESP8266 MESH DEMO	https://github.com/espressif/ESP8266_MESH_DEMO

github: gmag11/painlessMesh	https://github.com/gmag11/painlessMesh

github: me-no-dev/ESPAsyncWebServer	https://github.com/me-no-dev/ESPAsyncWebServer

github: pulkin/ESP8266 Injection Examples	https://github.com/pulkin/esp8266-injection-example

github: Robotto/ESPnfc	https://github.com/Robotto/ESPnfc

github: sglvladi/meshquitto	https://github.com/sglvladi/meshquitto



ESP8266: Crashing	http://arduino-esp8266.readthedocs.io/en/latest/faq/a02-my-esp-crashes.html#introduction

ESP8266: Exception Causes	https://github.com/esp8266/Arduino/blob/master/doc/exception_causes.rst