This is a breakout board for Freescale's MPR121QR2. The MPR121 is a capacitive touch sensor controller driven by an I2…

A simple, very bright, 250mcd, white LED LilyPad. Light up the night! LilyPad is a wearable e-textile technology deve…

Sale Note: These retail Bluetooth Mate Silvers were sent back to us by one of our distributors. We've v…

The BlueSMiRF HID is essentially the same board as the BlueSMiRF Silver but the populated RN-42 comes loaded with the HID f…

The Copernicus II is a great GPS module from Trimble, but the SMD module prohibits immediate gratification. This DIP allows…

If you aren't familiar with the Electric Imp, it essentially provides an easy, integrated way to connect almost any ha…

The RN-52 Bluetooth from Roving Networks is an audio module that makes it simple for you to create a hands free audio syst…

This AutoDriver makes it easy to put the L6470 Stepper Driver (a.k.a "dSPIN") to work in your project. Simp…

If you've ever tried to connect a 3.3V device to a 5V system, you know what a challenge it can be. The SparkFun logic …

The LilyPad MP3 Player is your all-in-one audio solution, containing an Arduino-compatible microcontroller, MP3 (and many o…

This handy kit includes both our USB charger and an 850mAh LiPo battery. The USB LiPo Charger is a basic charging circ…

The ScrewShield extends all pins of the Arduino out to 3.5mm pitch screw terminals. It also has a lot of the utility provid…

This is a small buzzer for the LilyPad system. Use 2 I/O pins on the LilyPad main board and create different noises based …

The WTV020SD is a small, simple IC for embedding audio-playback into your next project. These devices are commonly used in…

This tiny breakout board features the ADMP401 MEMs microphone. One of the key advantages to this breakout and microphone is…

You talked, we listened, and we've revised our Geiger Counter board to address some of the most pressing concerns. Thi…

The LSM303DLMTR is a triple axis accelerometer combined with a triple axis magnetic sensor. This arrangement allows for th…

If you use the SparkFun Inventors Kit in a classroom or workshop setting, you know that when a bunch of people get their h…

This is a wonderful evaluation board cooperatively designed by danjuliodesigns and SparkFun. The Heart Rate Monitor Interf…

This is a three axis accelerometer for the LilyPad system. Based on the ADXL335 MEMS accelerometer from Analog Devices, th…

This is the same product as the GPS Shield, but also includes an EM406 GPS receiver and headers. The difference is, this v…

This is the same product as the ProtoSnap LilyPad Development Board. The difference is this version comes in fancy clamshe…

This is a breakout board for the incredibly small TMP102 digital temperature sensor. The TMP102 is a digital sensor (I2C a.…

This is the LilyPad Arduino Simple Board. It's controlled by an ATmega328 with the Arduino bootloader. It has fewer pins t…

Here is a real time clock based on the DS3234 Real Time Clock IC. The DS3234 is a low-cost, extremely accurate SPI bus rea…

This is a breakout board for InvenSense's ITG-3200, a groundbreaking triple-axis, digital output MEMS gyroscope. The IT…

The RFID USB Reader is a simple to use, USB to serial base unit for the ID-3LA, ID-12LA, and ID-20LA readers. Simply plug …

 Binary Blaster is a game designed to help teach what binary numbers are and how to convert from decimal (and hex…

  This new version corrects the pin out for the GPX and RESET pins. The USB Host Shield contains all of the digital lo…

 This is the Solderable Breadboard. A bare PCB that is the exact size as our regular breadboard with the same connecti…

This tiny audio amplifier is based on the Texas Instruments TPA2005D1. Its efficient class-D operation means low heat and l…

Your 5 volt system can wield great power with this big beefy relay board. How does 20 amps at 220VAC sound? The Beefcake R…

Have you ever seen a Weevil? It's a pretty under-appreciated beetle, so we thought it deserved a kit. Okay, so we just…

We've been using and selling Analog Devices' ADXL accelerometers for a good while now, and now we've found ano…

This is a breakout board for the SP3485 RS-485 transceiver IC, which will convert a UART serial stream to RS-485. The SP348…

 The RedBot Mainboard is a robotic development platform that works with the Arduino IDE. The RedBot is a motor driver …

 Pianos are heavy and can take about a year to make. What if you could have one that weighed only a few grams and took…

This module uses the newest 2.4GHz transceiver from Nordic Semiconductor, the nRF24L01+. This transceiver IC operates in t…

This box of tools is a happy medium between the beginner and deluxe tool kits. Most of the tools necessary to assemble, so…

This is a very simple board that takes a 6-12V input voltage and outputs a selectable 5V or 3.3V regulated voltage. All hea…

This kit is the same product as the Ardumoto Shield but it also includes headers and screw terminals. The board and parts …

Don't leave your next physical computing project stranded in a world of black and white! This color sensor module can …

The new version of the UBW32 now uses the PIC32MX795 IC. Based on the work of Brian Schmalz, the UBW32 is a small developme…

This board allows you to interface with your car's OBD-II bus. It provides you a serial interface using the ELM327 com…

This is essentially a ramped up version of our Ardumoto motor driver shield. For this monster shield we've replaced th…

The Quadstepper motor driver board allows you to control up to 4 bipolar stepper motors simultaneously using logic level I…

This kit was designed to accompany Rob Faludi's Building Wireless Sensor Networks book, which is the comprehensive gui…

Here is a very simple breadboard power supply kit that takes power from a DC wall wart and outputs a selectable 5V or 3.3V …

This is a breakout board for Honeywell's HIH-4030 humidity sensor. The HIH-4030 measures relative humidity (%RH) and d…

4-digit 7-segment displays are really neat little devices, it's a shame that they can be so cumbersome to control. Wel…