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This is a pack of 2 wheels, specifically designed to mate with the RFL motors. Comes as a pack of 2.
**Replacement:** None. There is no direct replacement for this item. This page is for reference only. If you need a lot of l…
**Replacement:**[COM-10494](https://www.sparkfun.com/products/10494). Honeywell has released a new rev of this magnetometer, …
**Replacement:** None. It's time for this product to step aside and make room in the catalog for even more cool stuff. This p…
Gainer is a simple board developed by Shigeru Kobayashi and the team at [Gainer.cc](http://gainer.cc/). This board utilizes t…
Let’s say “what’s up” to the Watt’s Up Meter! The Watt’s Up makes it easy to measure a project's charge/energy de…
**Replacement: **None. We are no longer carrying this board, but check out the rest of our [ARM](http://www.sparkfun.com/cate…
This versatile T-track system provides a flexible and reliable way to hold down a wide assortment of material to your standar…
**Replacement:** None. We are no longer carrying this sub-assembly for the UberTracker. This page is for reference only. The…
This holder allows you to safely secure a IOIO development board and a self-adhesive breadboard in place to easily run jumper…
**Replacement:** None. We are no longer making this board. This page is for reference only. These strips of flexible PCB are…
The Netduino Plus is an open source electronics platform using the .NET Micro Framework. The board features a 32-bit microcon…
**Replacement: **None. There is no direct replacement. This page is for reference only. UART to RS232interface card for the …
These precision gearmotors are incredibly tough and feature full metal gears to help you drive wheels, gears, or almost anyth…
So it turns out that your XBee based device would work even better as a Bluetooth device... that probably means back to the d…
This 200 pulse per rotation single-output encoder outputs electrical pulses which you can interpret using a microcontroller t…
**Replacement:**[DEV-11226](https://www.sparkfun.com/products/11226). This kit now includes the Arduino Uno R3. This page is …
If you need some juice, this 6Ahr triple pack is for you. These are very slim, extremely light weight batteries based on the …
DB9 Female Header Solder Tail package.
These 8" long stainless steel shafts have a diameter of 3/16". These shafts are solid, which makes them an ideal choice for a…
The is a wonderfully simple 5V power source from Bodhilabs. This PCB uses a source of 1.1V to 4.5V and generates 5V using a D…
These square pillow block bearing mounts attach to the inside of a channel and have a ball bearing with a 1” bore for shaft…
**Replacement:** None. We are no longer carrying this t-shirt in our catalog. This page is for reference only. More swag? Wh…
This is an awesome little microSD card USB reader. Your uSD card slides into the inside of the USB connector, then stick this…
This simple on-off switch is rated for 20A at 12V but who cares about all that, it looks way awesome. These toggle switches c…
This is one cool little car. This simple, two-wheel drive chassis has a rack-and-pinion style steering mechanism so it turns …
This is the same product as the [2000mAh Lithium Polymer Battery](https://www.sparkfun.com/products/8483). The difference is …
The ADNS2620 is an easy to use entry level, small form factor optical mouse sensor. This little guy is used to implement a no…
This is a replacement soldering tip for the [Weller WLC100](https://www.sparkfun.com/products/14228) soldering iron. Each con…
**Replacement:** None. We are no longer carrying the FEZ Panda II in our catalog. This page is for reference only. The 72Mhz…
Rotary encoders can be used similarly to potentiometers. The difference being that that an encoder has full rotation without …
**Replacement:** None. We are no longer carrying this part. This page is for reference only. The SMA661AS is the first low-n…
The MPR121 IC is a great way to build simple capacitive touch interfaces, and now it's even easier to incorporate into your A…
**Replacement:** None. We are no longer carrying this board, but feel free to have a look at the rest of our [development too…
This is a large mass of items that go along with the Beginning Embedded Electronics lectures. You will get all the following …
Need a bit more than just a SparkFun Stepoko controller? The Stepoko Motion Control Add-On Kit provides you with everything y…
These channel tube clamps are great for exactly what they are named as: securing a 1" diameter shaft or tube to an [Actobotic…
**Replacement:** None. We are no longer carrying this board but you can check out our development tools category for more dev…
ABS Filament reels from Chroma Strand Labs. ABS is favored for it's strength, resilience, and heat resistance which makes it …
This is the same product as the [GPS Shield](http://www.sparkfun.com/products/10710), but also includes an [EM406 GPS receive…
This board has gone red! You can see the new version [here](https://www.sparkfun.com/products/18012). We added a power LED so…
These hub-mountable aluminum gears are ideal for transmitting motion from a motor or servo to a wheel or shaft. These gears h…
These 2" long stainless steel tubes have an outer diameter of 1", an inner diameter of 0.88", and a wall thickness of 0.06". …
We've all seen toys and things that change color when you run them under warm water or heat them up in the sun. Some of us we…
This product went red! Check it out [here](https://www.sparkfun.com/products/16916). We are quite familiar with seven-segm…
**Replacement:** None. We are no longer carrying this wide optic lens in our catalog. This page is for reference only. This …
**Replacement:**[RTL-11505](http://Replacement: RTL-11505. The new version of the kit uses blank, unbranded RFID cards. This …
**Replacement:** None. We are no longer carrying this LCD shield in our catalog. This page is for reference. The Color LCD…