This is a breakout board for our Blackberry Trackball. The four spindles on the trackball have a tiny circular magnet the e…

Atmel's ATMega328P 8-Bit Processor in 28 pin DIP package. It's like the ATmega168, with double the flash space. 32…

EL inverters allow you to drive EL wires. This particular EL inverter accepts 3V input and outputs 110VAC to drive EL wire…

 This is the basic L7805 voltage regulator, a three-terminal positive regulator with a 5V fixed output voltage. This f…

These DC powered heating pads are perfect for near-body heating applications. They get warm to the touch but not too hot. …

MP3 decoding is now even easier! This is the popular VS1011 single-chip MP3 audio decoder from VLSI is an easy to solder S…

Surface transducers give you the awesome power to turn almost any surface into a speaker. They're essentially just a s…

This is a translucent silicon rubber button pad with 16 buttons originally inspired by the folks at monome.org. Each button…

EL wire, or electroluminescent wire, is a flexible wire coated in phosphor. Apply the appropriate voltage and it lights up…

A very powerful 5mW green laser. Fun, but don't point in anyone's eyes. These units include a momentary power butt…

An adjustable potentiometer can open up many interesting user interfaces. Turn the pot and the resistance changes. Connect…

 This is a perfect choice if you are in need of a heavy duty push button! These metal push buttons are a very tough, s…

PICAXE-08M2 microcontroller chip. PICAXE is a neat entry-level microcontroller system that is relatively cheap to get…

Are you trying to make a quick dime from electronics? Why limit yourself to dimes? This coin acceptor will take up to 6 di…

 This is an 8 gig microSD memory card. It's perfect for massive datalogging without taking up a lot of space. Thes…

This is the basic laser card module with circuitry built in so that it can be turned on/off with a TTL signal. Includes po…

Are you trying to make a quick dime from electronics? Why limit yourself to dimes? This coin acceptor will take three diff…

Let there be light(s)! This festive string of addressable RGB LEDs can add color to indoor or outdoor displays. Much like …

The TLC5940 is a 16 channel PWM unit with 12 bit duty cycle control (0 - 4095), 6 bit current limit control (0 - 63), and …

A solid state relay (SSR) is just what it sounds like; an IC that acts like a mechanical relay. They allow you to control …

Even though the Tron movies have been out for a while, electroluminescence is still the coolest thing since sliced bread. T…

This is a large sized RGB LED Matrix with a backpack that has been designed to take SPI serial input and display any graph…

This piezo igniter can be used for all sorts of applications where you need a spark to make fun things happen. With a larg…

The PicoBuck LED Driver is an economical and easy to use driver that will allow you to control and blend three different L…

BlinkM is a “Smart LED”, a networkable and programmable full-color RGB LED for hobbyists, industrial designers…

 Gone are the days that you have to worry about silicone water proofing splitting and breaking on you! These are seale…

This MOSFET power control kit is basically a breakout for a RFP30N06LE MOSFET. We give you terminal blocks for connecting …

This 200 pulse per rotation rotary encoder outputs gray code which you can interpret using a microcontroller and find out …

 This is the 24 LED NeoPixel Ring from Adafruit, a small chainable 2.6" (66mm) outer diameter board equipped…

These DC powered heating pads are perfect for near-body heating applications. They get warm to the touch but not too hot. …

Who doesn't love the soft glow of electroluminescence? This EL panel is a flexible plastic sheet which contains a phos…

A simple slide potentiometer can go a long way. Rated at 10kOhm and 0.5W. Comes with solder tab connections. The taper pro…

What is a 'laser card' you ask? It is only the coolest thing to hit Spark Fun Electronics since the Color LCD last …

These are very bright LEDs. The LEDs are so bright that it hurts to look directly at them. Please take a look at the pictur…

No really - it's 6 inches (153mm) tall! This very large 7-segment display can be seen from a hundred feet away. So man…

EL wire, or electroluminescent wire, is a flexible wire coated in phosphor. Apply the appropriate voltage and it lights up…

This is a compact and easy to use relative humidity sensor from Sensirion. The SHT15 digital humidity and temperature sens…

MP3 decoding is now even easier! This is the popular VS1011 single-chip MP3 audio decoder from VLSI is a LQFP package! It …

 Gone are the days that you have to worry about silicone weather proofing splitting and breaking on you! These are sea…

This simple on-off switch is rated for 20A at 12V but who cares about all that, it looks way awesome. These toggle switches…

LinkM is a USB adapter that addresses two of the most frequently-requested BlinkM features. It enables you to program Blin…

Yes you read that correctly - 10Farad capacitor. This small cap can be charged up and then slowly dissapated running an ent…

These are very common, high quality BJT NPN transistors made by ST Micro. Datasheet: 2N3904

This is a 12-step rotary encoder with a nice 'clicking' feel. It's breadboard friendly, and has a pretty handy …

It's not what project you have in mind that may use a rocket launch switch... The question is what project will you co…

This retail package includes 26 various LEDs, resistors, and a coin cell battery for all your LED projects. They include t…

We all know that you can never get too many LEDs. Don't worry, we've got you covered. This is a mixed pack of 26 LE…

 This is the NeoPixel Shield from Adafruit. This Arduino shield is equipped with 40 WS2812 RGB LEDs arranged in an 5x8…

EL wire, or electroluminescent wire, is a flexible wire coated in phosphor. Apply the appropriate voltage and it lights up…

This DC Blower really moves some air! Pulling about 1Amp @ 12VDC, this blower is rated at 16CFM (although it seems like mor…