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RELATED GUIDES

Introducing Bluefruit EZ-Link Breakout
The ultimate serial Bluetooth link & wireless Arduino programmer
by lady ada
We are excited to add another product to our growing Adafruit Bluefruit line, this time its the Bluefruit EZ-Link: the best Bluetooth Serial Link device ever made. Like you, we have purchased all sorts of Bluetooth serial link modules, with high expectations - we just wanted something that worked! But nothing ever did exactly what we wanted: there was always some configuration modes to wade through, and using one of those other modules to reprogram an Arduino is impossible. So we did what we always do, we went in and engineered something better. Something that works!
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Li-Ion & LiPoly Batteries
All about the power packs that propel your projects!
by lady ada
If you want to take your project portable you'll need a battery pack! For beginners, we suggest alkaline batteries, such as the venerable AA or 9V cell, great for making into larger multi-battery packs, easy to find and carry plenty of charge. If you want to go rechargeable to save money and avoid waste, NiMH batteries can often replace alkalines. Eventually, however, you may want to upgrade to the shiniest new technology - rechargeable lithium ion/polymer batteries. In this guide, you will learn all about these batteries, and how to properly use them in your projects.
Bandolier of Light
Bullets of pure love
by Becky Stern
Brighten up your militaristic Halloween costume with an illuminated bandolier made from NinjaFlex 3D printing filament and a strip of glowing NeoPixels.
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Adafruit Feather 32u4 Bluefruit LE
Bluetooth Low Energy on a board that's thin and light, just like a...
by lady ada
Feather is the new development board from Adafruit, and like it's 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 Bluefruit - our take on an 'all-in-one' Arduino-compatible + Bluetooth Low Energy with built in USB and battery charging. Its an Adafruit Feather 32u4 with a BTLE module, ready to rock!