As of October 12th, 2015 this product now ships with an Adafruit Trinket with a micro-USB plug.

One of the most popular Trinket projects now has its own kit pack!  Make your very own programmable NeoPixel goggles with 2 x 16 LED rings and an Adafruit Trinket. It even comes with a rechargeable LiPoly battery and charger. It's a great easy build and when you're done you'll have the coolest accessory.

Follow along with our popular Kaleidoscope Eyes tutorial.  The pack contains almost everything you need to put a pair of NeoPixel Rings in our costume goggles and power them with an Adafruit Trinket.  The LED rings fit perfectly inside 50mm round goggles and we include a 3.7v 150mAh battery and and Micro Lipo charger so you can run the battery and charge it all while contained in the goggles themselves.

These are fairly easy to put together and should take around an hour to make.  You'll need some basic soldering and hand tools to install the JST connector on the bottom side of the Trinket and connect your NeoPixel rings.  We don't include a soldering iron or solder but sell them in the Adafruit store and you can find epoxy or hot glue at most hardware/craft stores. The soldering is easy and is possible to do by beginners, its a 1-2 hour project (30 minutes if you are a kit-making expert!)

You'll also need a classic USB Micro B cable to program the Trinket, we don't include it as people tend to have too many USB cables in their desk drawer.

Please note! They look great, but we don't recommend putting the goggles over your eyes when they're all lit up since the lights can be bright and the goggle lenses can be hard to see out of. However, the goggles work great for costumes/accessories when they're put on top of your forehead!

Feather is the new development board from Adafruit, and like its namesake it is thin, light, and lets you fly! We designed Feather to be a new standard for portable microcontroller cores.

This is the Adafruit Feather 32u4 Radio (RFM69HCW) 433MHz - our take on an microcontroller packet radio transceiver with built in USB and battery charging. Its an Adafruit Feather 32u4 with a 433 MHz radio module cooked in! Great for making wireless networks that can go further than 2.4GHz 802.15.4 and similar, are more flexible than Bluetooth LE and without the high power requirements of WiFi.

This is the 433 MHz frequency module version.

At the Feather 32u4's heart is at ATmega32u4 clocked at 8 MHz and at 3.3V logic, a chip setup we've had tons of experience with as it's the same as the Flora. This chip has 32K of flash and 2K of RAM, with built in USB so not only does it have a USB-to-Serial program & debug capability built in with no need for an FTDI-like chip, it can also act like a mouse, keyboard, USB MIDI device, etc.

To make it easy to use for portable projects, we added a connector for any of our 3.7V Lithium polymer batteries and built in battery charging. You don't need a battery, it will run just fine straight from the micro USB connector. But, if you do have a battery, you can take it on the go, then plug in the USB to recharge. The Feather will automatically switch over to USB power when its available. We also tied the battery thru a divider to an analog pin, so you can measure and monitor the battery voltage to detect when you need a recharge.

Here's some handy specs! Like all Feather 32u4's you get:

• Measures 2.0" x 0.9" x 0.28" (51mm x 23mm x 8mm) without headers soldered in
• Light as a (large?) feather - 5.5 grams
• ATmega32u4 @ 8MHz with 3.3V logic/power
• 3.3V regulator with 500mA peak current output
• USB native support, comes with USB bootloader and serial port debugging
• You also get tons of pins - 20 GPIO pins
• Hardware Serial, hardware I2C, hardware SPI support
• 8 x PWM pins
• 10 x analog inputs
• Built in 100mA lipoly charger with charging status indicator LED
• Pin #13 red LED for general purpose blinking
• Power/enable pin
• 4 mounting holes
• Reset button

This Feather 32u4 Radio uses the extra space left over to add a RFM69HCW 433 MHz radio module:

• SX1231 based module with SPI interface
• Packet radio with ready-to-go library
• Uses the amateur or license-free ISM band (ITU "Europe" license-free ISM or ITU "American" amateur with limitations)
• +13 to +20 dBm up to 100 mW Power Output Capability (selectable in software)
• Range of approx. 350 meters, depending on obstructions, frequency, antenna and power output
• Create multipoint networks with individual node addresses
• Encrypted packet engine with AES-128
• Simple wire antenna or spot for uFL connector

Comes fully assembled and tested, with a USB bootloader that lets you quickly use it with the Arduino IDE. We also toss in some headers so you can solder it in and plug into a solderless breadboard. You will need to cut and solder on a small piece of wire (any solid or stranded core is fine) in order to create your antenna. Lipoly battery and USB cable not included but we do have lots of options in the shop if you'd like!