The basics behind the batteries used in portable electronic devices: LiPo, NiMH, coin cells, and alkaline.
LiPo USB Charger Hookup Guide
How to charge your LiPo batteries with the USB LiPo charger. Plus how to modify your charger to set the charge current.
How LEDs are Made
We take a tour of a LED manufacturer and learn how PTH 5mm LEDs are made for SparkFun.
An introduction to polarity in electronic components. Discover what polarity is, which parts have it, and how to identify it.
How Chip-On-Boards are Made
COB or chip-on-board is a low cost way of soldering an IC to a PCB. Checkout this tutorial to see how it is done!
The Uncertain 7-Cube
The Uncertain 7-Cube is a non-committal, less-than-helpful, but also entirely honest fortune teller. Simply ask it a yes or no question, give it a nudge, and the 7-Cube will dutifully inform you that it doesn’t have all the facts and doesn’t feel comfortable making a guess.
My Drunk Kitchen Apron
A fun project that uses the LilyPad MP3 trigger. This apron will dispense helpful kitchen advice and humor from the host of My Drunk Kitchen, Hannah Harto!
All things Arduino Shields. What they are and how to assemble them.
Mini FET Shield Hookup Guide
Learn how to hookup and use the FET shield for Arduino Pro Mini 3.3V. With this shield, you can control much larger loads such as motors or large LED strips without straining your Arduino's power.
Dungeons and Dragons Dice Gauntlet
A playful, geeky tutorial for a leather bracer that uses a LilyPad Arduino, LilyPad accelerometer, and seven segment display to roll virtual 4, 6, 8, 10, 12, 20, and 100 side dice for gaming.
Getting Started with the LilyPad MP3 Player
The LilyPad MP3 Player is an amazing little board that contains almost everything you need to play audio files. You can use it to create all kinds of noisy projects, from MP3 hoodies to talking teddy bears. Your imagination is the only limit! This tutorial will help you get started.
ProtoSnap LilyPad Development Simple Hookup Guide
Interested in getting into LilyPad? Or maybe it's Arduino that tickles your fancy? Just want to add a little white-blinky-LED zest to your vest? All of the above? The ProtoSnap LilyPad Simple is a great tool to explore any of these subjects.
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LiPo Battery Care
Some tips and tricks on how to re-enforce, label, and charge the ever popular Lithium Polymer batteries.
Heartbeat Straight Jacket
We take a straight jacket, add some blinky, and wirelessly transmit heartbeats for a wicked costume.
LED Laden Bike Helmet
Curious about how to integrate LEDs into your project? Check this out - I was tired of forgetting my bike light at home, this tutorial dives into LED wiring basics while adding lighting to my bike helmet.
HAB - Sensor System, Flight Computer, and Radio System
A break down of all the sensors chosen, the main PCB layout, and the high power radios and antennas used.
Mixed Signal Costume
She's always sending me mixed signals. Checkout this twist on a stoplight costume using MOSFETs, XBee, and plenty of blinking LEDs.
ProtoSnap - LilyPad Development Board Quickstart Guide
A primer on the ProtoSnap LilyPad Development Board. What it is, what it's made of, and how you can program it.
Beginning LilyPad Arduino
A brief introduction to sewing an Arduino circuit with the Lilypad Arduino Simple board. This tutorial requires no programming knowledge.
Using the LilyPad LilyTwinkle board
A beginner's guide to building a circuit with the new LilyPad LilyTwinkle!
We take an old rotary phone, dissect it, and cross-pollinate it with a cellular module.
2000mAh LiPo Battery Quickstart Guide
Landing page for the 2000mAh LiPo battery
Parts and Projects
A few new items and a few customer project submissions.
Introducing the Arduino FIO and closing early
Say "hello" to the Arduino FIO - plus a few other new products!
The Return to Shenzhen - Part 2
SparkFun visits various factories and the electronics market in Shenzhen, China.
Retrosparktive Part II - Longbow Drive
SparkFun moves up to a "real building" - business ensues
It's time for a sale! Plus, we're announcing a new product section: the Sale Category.
Communities that Create
Nathan Seidle tells the story of SparkFun, how we got started and why we do what we do.
What's All the Fuss About Lithium Batteries?
The positives and negatives of shipping lithium batteries in the 21st century.
Connecting the Dots - Vancouver
Nate travels through UBC in Vancouver discovering amazing research projects and beautiful art, finishing up with a ride on the Mondo Spider.
Lynne Bruning, friend of SparkFun and E-Textile expert, joins us for a guest post.
Welcome to another year of new products!
It's 2011 and we expect this to be a big year for new products.
New Product Friday: Joints and Mounts
Now that AVC is done, we have a bunch of new products to talk about.
A look into SparkFun Production - and some new products!
New LilyPad kits, sensors, perf boards, a crazy package tracker, and various pictures updates. Oh, and Production is moving.