Adafruit Feather HUZZAH ESP8266

 (Adapted from: https://learn.adafruit.com/adafruit-feather-huzzah-esp8266)

We shall be using the Adafruit Feather HUZZAH ESP8266 WiFi to build our Rat Bait Station. It is a very low-cost solution to building an Ad-Hoc network. The ESP8266 WiFi system on chip (SoC) processor on board, can be used as a stand-alone microcontroller.

Overview

At the Feather HUZZAH's heart is an ESP8266 WiFi microcontroller clocked at 80 MHz and at 3.3V logic. This microcontroller contains a Tensilica chip core as well as a full WiFi stack. We can program the microcontroller using the Arduino IDE for an easy-to-run Internet of Things core. They had wired up a USB-Serial chip that can upload code at a blistering 921600 baud for fast development time.

Here’re some of the specs:

• Measures 2.0" x 0.9" x 0.28" (51mm x 23mm x 8mm) without headers soldered in
• Light as a (large?) feather - 6 grams
• ESP8266 @ 80MHz or 160 MHz with 3.3V logic/power
• 4MB of FLASH (32 MBit)
• 3.3V regulator with 500mA peak current output
• CP2104 USB-Serial converter onboard with 921600 max baudrate for uploading
• Auto-reset support for getting into bootload mode before firmware upload
• 9 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
• 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