Arduino

The popular development board and all its shields, cases, and accessories.

Books

Grab a book and teach yourself something new.

Breakout Boards

If you need to prototype something, breakout boards are the perfect shortcut to get up and running quickly.

Cables

From USB, audio, video, or general prototyping cables; here you can find all you need to get your devices connected together,

Cellular

Cellular modules can provide reliable long range communication.

Components

Buttons, switches, LEDs, and all the other general parts you need to build your next creation.

Dings and Dents

Anything that doesn't get sold as a product usually ends up here. Bare PCBs, scrapped builds, or one-off products can be found here.

Educators

Get your bulk-packed classroom materials here.

E-Textiles

Wearable electronics and materials.

GPS

Get accurate positioning information with the help of GPS.

Kits

Learn how to solder, program, and more with our kits.

LCDs

Add a graphic interface with a color or monochrome LCD.

Programmers

Get your code onto the IC.

Prototyping

All the parts necessary to prototype your design.

Raspberry Pi

Cases, accessories, and everything you need for your Pi.

Retail

Specially packaged products for our retail customers.

Robotics

Get moving with robotics. Wheels, motors, controllers, and all things mechatronic.

Sensors

Detect your environment with various sensors. Motion, sound, vision, temperature, and more.

Swag

Show off your inner geek with SparkFun swag.

Tools

Get building with hand tools, soldering irons, and power supplies.

Widgets

Need a board for a specific application? Check out or SparkFun widgets.

Wireless

Cut the cord and communicate wirelessly.

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Recent Product Comments

Does 2 pack mean 4 wheels? Please reply me ASAP. Thanks in advance.
Just a warning: The output does not go all the way to the ground. I measured 0.6V at 8V I- and 2.45V I+ 9V power supply.
I have compared the schematic and the board files with “SSOP Typical Application Schematic” from page 19 of the datasheet of the new…
Just ordered one… hope you are right TeslaFan! ;)
Just got shipping confirmations. Love you SparkFun!
Anyone know of an iOS app that will connect and work with the BlueSmirf? I see a couple for the BlueFruit specifically, but I don’t see any…
The size of this is great! I’m looking to do some heat-sink experiments while driving 3 leds @1A each. Unfortunately, I need to power it…
Fantastic tip!!! It all falls into place. All those MAX232 pins, R1IN, R1OUT, T1IN, T1OUT, now make a lot more sense. I’m cured! Thanks a…
The unpopulated chip footprint on the top-right of the yellow PCB appears to be designed for the Apple MFi (Made-for-iPhone) authentication…
I have this connected to a Bluetooth Mate Gold. It writes data all the time (using Serial.Println), and checks Serial.available() to look…