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Resistors are a good thing, in fact, they're actually crucial in a lot of circuit designs. The only problem seems to be that …
We all know that you can never get too many LEDs. Don't worry, we've got you covered. This is a pack of basic red, yellow, bl…
Are you looking to add a lot of color to your project? These massive 32x32 RGB LED panels are an awesome place to start. You …
This is a joystick very similar to the 'analog' joysticks on PS2 (PlayStation 2) controllers. Directional movements are simpl…
A solid state relay (SSR) allows you to control high-curent AC loads from lower voltage DC control circuitry. Solid state rel…
There are lots of trimpots out there. Some are very large, some so small they require a screwdriver. Here at SparkFun, we jus…
The PicoBuck LED Driver is an economical and easy to use driver that will allow you to control and blend three different LEDs…
It's the end of the world, and you need a button to press. This is it. A 100mm diameter (outside diameter) dome illuminated p…
This 1024 pulse per rotation rotary encoder outputs [gray code](http://en.wikipedia.org/wiki/Gray_code) which you can interpr…
No really - it's 6 inches (153mm) tall! This very large 7-segment display can be seen from a hundred feet away. So many proje…
This is a kit that provides you with a basic assortment of capacitors to start or continue your electronics tinkering. No mo…
4-digit 7-segment displays are really neat little devices, it's a shame that they can be so cumbersome to control. Well we've…
This is the FemtoBuck, a small-size single-output constant current LED driver. Each FemtoBuck has the capability to dim a sin…
These tactile buttons are great for all sorts of projects. This assortment comes with 2 of each of 6 different colors for a t…
This is a class 10 16GB microSD memory card, perfect for housing operating systems for single board computers and a multitude…
This is a standard 12mm square momentary button. What we really like is the large button head and good tactile feel (it 'clic…
Surface transducers give you the awesome power to turn almost any surface into a speaker. They're essentially just a speaker …
Gone are the days that you have to worry about silicone water proofing splitting and breaking on you! These are sealed addres…
If you've ever wondered how to control the headlight of a car from a microcontroller, a MOSFET is what you need. This is a ve…
Atmel's itty-bitty ATtiny85 8-Bit Processor. 8K of program space, 6 I/O lines, and 4-channel 10 bit ADC. Runs up to 20MHz wit…
Ever hear of a thing called RGB? Red, Green, Blue? How about an RGB LED? These 5mm units have four pins - Cathode is the long…
This is a heavy-duty joystick very similar to the ones in [claw](http://en.wikipedia.org/wiki/Claw_vending_machine) arcade ga…
The seven band graphic equalizer IC is a CMOS chip that divides the audio spectrum into seven bands. 63Hz, 160Hz, 400Hz, 1kHz…
4-way Pacman type arcade joystick. Heavy duty design gives this joystick a great feel! **Features:** * ABS plastic and so…
This is a small 12mm round speaker that operates around the audible 2kHz range. You can use these speakers to create simple m…
Piezo elements come in handy when you need to detect vibration or a knock. You can use these for tap or knock sensors pretty …
EL inverters allow you to drive EL (electroluminescent) wires. This particular EL inverter accepts a 12 VDC wall adapter. The…
The SparkFun Large Digit Driver is a chainable controller backpack that can be soldered directly to the back of our large [6.…
Simple SPDT slide switch. Rated at 30V/200mA. The pins have .1" spacing - fits great into a breadboard! Use it as a power swi…
This large 8x32 pixel WS2812B flexible LED matrix is a great way to add an impressive amount of color while still being able …
This is a heavy duty SPST toggle switch - your basic on/off toggle. Rated for 2A at 250V or 4A at 125V. Includes a face plate…
These are high quality Single Pole - Double Throw (SPDT) sealed relays. Use them to switch high voltage, and/or high current …
Want to control a standard wall outlet device with your micro controller, but don't want to mess with the high voltage wiring…
The SparkFun EL Sequencer is a board that contains an Arduino-compatible microcontroller, and circuitry for controlling up to…
This is a thermal printer like you would find on a cash register or adding machine. It will print simple strings passed to it…
Rotary encoders can be used similarly to potentiometers. The difference being that an encoder has full rotation without limit…
Faster, cheaper, smaller, better, right? The SN754410 Quad Half H-Bridge is just that. Capable of driving high voltage motors…
We use these little buttons on everything! These Miniature Single Pole Single Throw switches have a good click to them and ar…
Surface transducers give you the awesome power to turn almost any surface into a speaker. Much like our larger surface transd…
This is the SparkFun MOSFET Power Control Kit, a breakout PTH soldering kit for for the [RFP30N06LE](http://www.sparkfun.com/…
Thermoelectric coolers (TEC or Peltier) create a temperature differential on each side. One side gets hot and the other side …
Who doesn't love the soft glow of electroluminescence? This EL panel is a flexible plastic sheet which contains a phosphor la…
This is the basic LD1117V33 voltage regulator, a low drop positive regulator with a 3.3V fixed output voltage. This fixed reg…
If you do anything with electronics, you’re probably already using transistors, but you’re probably using them in large, …
A very powerful 5mW green laser. Fun, but don't point in anyone's eyes. These units include two solder points for permanent o…
Gone are the days that you have to worry about silicone weather proofing splitting and breaking on you! These are sealed addr…
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