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WIG-13118 SparkFun Servo Trigger
US$26.61
The SparkFun Servo Trigger is a small robotics board that simplifies the control of hobby RC servo motors. When an external switch or logic signal changes state, the Servo Trigger is able to tell an attached servo motor to move from position A to position B. To use the Servo Trigger, you simply connect a hobby servo and a switch, then use the on-board potentiometers to adjust the start/stop positions and the transition time. You can use a hobby servos in your projects without having to do any programming!
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PRT-13854 850mAh Lithium Ion Battery
US$13.93
These are very slim, extremely light weight batteries based on Lithium Ion chemistry. Each cell outputs a nominal 3.7V at 850mAh! Comes terminated with a standard 2-pin JST-PH connector - 2mm spacing between pins. These batteries require special charging. Do not attempt to charge these with anything but a specialized LiPo charger. Battery includes built-in protection against over voltage, over current, and minimum voltage.
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PRT-10501 JST RCY Connector - Male/Female Set (2-pin)
US$0.98
This is a 2-pin JST RCY connector typically used for low-voltage applications running 10A or less. They are commonly found in RC vehicles. These come in a bag of 1 male plug, 1 female plug, plus pins to connect them both. The pins crimp to your cable and are inserted into the housing.
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PRT-13839 Enclosure - Aluminum (112x61x31mm)
US$8.62
These are our small, beefy aluminum enclosures, which have been built tough enough to withstand a truck. This 2mm-thick, die-cast enclosure is rated IP54 against dust and splashing water. Because it’s aluminum, it’s easy to cut and drill so that you can add LCD screens, buttons and cable connections. If you want to “pretty up” your project, hit this with some fine-grit sand paper and buff it or just spray paint it!
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KIT-13815 Beefcake Relay Control Kit (Ver. 2.0)
US$14.46
Your 5V system can wield great power with this big, beefy relay board. How does 10A on the NC contacts and 20A on the NO contacts at 220VAC sound? The SparkFun Beefcake Relay Control Kit contains all the parts you need to get your high-power load under control. Only minimal assembly is required! The heart of the board is a sealed, SPDT 20A/10A Relay. The relay is controlled by 5V logic through a transistor, and an LED tells you when the relay is closed.
Delivery within 2-3 weeks
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BOB-12758 SparkFun Electret Microphone Breakout
US$10.22
This small breakout board couples an Electret microphone (100Hz–10kHz) with a 60x mic preamplifier to amplify the sounds of voice, claps, door knocks or any sounds loud enough to be picked up by a microcontroller’s analog-to-digital converter. Each breakout comes fully assembled and works from 2.7V up to 5.5V.
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PRT-13856 6Ah Polymer Lithium Ion Battery
US$52.06
These are very compact batteries based on the new Polymer Lithium Ion chemistry. This is the highest energy density currently in production. Each cell outputs a nominal 3.7V at 2000mAh! This solid 3 cell pack (6Ah) comes terminated with a standard 2-pin JST-PH connector - 2mm spacing between pins. Do not attempt to charge these with anything but a charger specifically designed for Lithium Ion batteries.
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PRT-13852 40mAh Polymer Lithium Ion Battery
US$6.65
This is an extremely tiny and light weight battery based on the new Polymer Lithium Ion chemistry. This is the highest energy density currently in production. Each cells outputs a nominal 3.7V at 40mAh. This may sound like not so much power, but the cell is really tiny… like, about half an inch square!
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SEN-13763 SparkFun Humidity and Temperature Sensor Breakout - Si7021
US$16.73
The Si7021 is a low-cost, easy-to-use, highly accurate, digital humidity and temperature sensor. This sensor is ideal for environmental sensing and data logging and perfect for build a weather stations or humidor control system. All you need are two lines for I2C communication, and you’ll have relative humidity readings and very accurate temperature readings as a bonus!
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KIT-13863 SparkFun Picoboard Starter Kit
US$90.93
The SparkFun PicoBoard Starter Kit is your go-to source to begin learning everything about the SparkFun PicoBoard and the Scratch programming environment. This kit includes your very own PicoBoard, multiple pieces of hardware to get you started, and connecting components to get you hooked up. Using the Scratch programming language, you can easily create simple interactive programs based on the input from sensors. The PicoBoard incorporates a light sensor, sound sensor, a button and a slider, as well as four additional inputs that can sense electrical resistance via included cables.
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PRT-13813 3.7V 1000mAh Polymer Lithium Ion Battery
US$14.46
These are very slim, extremely light weight batteries based on the new Polymer Lithium Ion chemistry. This is the highest energy density currently in production. Each cell outputs a nominal 3.7V at 1000mAh! Comes terminated with a standard 2-pin JST-PH connector - 2mm spacing between pins. These batteries require special charging.
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TOL-11784 SparkFun Third Hand Kit
US$52.17
The SparkFun Third Hand gives you the ability to hold a board between two alligator clips on two flexible arms with multiple points of articulation. The arm’s wide range of articulation gives you access to any angle of the board that you are currently working on, making soldering that much easier. The SparkFun Third Hand also won’t move around while you work thanks to a heavy aluminum base supporting the arms.
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DEV-13814 Smooth Thread Bobbin - 12m (Stainless Steel)
US$7.62
This is 12 meters of smooth conductive thread spun from stainless steel fiber and wound on a plastic bobbin. Use it to sew up all of your e-textile projects. This small bobbin is a great way to get into wearable electronics without the upfront cost of buying an entire spool of thread. Close to 40 feet of thread is enough to get a simple design stitched onto your shirt, backpack or hat.
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TOL-12942 Bus Pirate - v3.6a
US$45.42
The Bus Pirate v3.6a, created by Ian Lesnet, is a troubleshooting tool that communicates between a PC and any embedded device over 1-wire, 2-wire, 3-wire, UART, I2C, SPI, and HD44780 LCD protocols - all at voltages from 0-5.5VDC. This product eliminates a ton of early prototyping effort when working with new or unknown chips.
Delivery within 2-3 weeks
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WRL-13002 Telescopic Antenna SMA - 75 MHz to 1 GHz (ANT500)
US$73.29
This ANT500 is a telescopic antenna designed for operation from 75 MHz to 1 GHz with a total length that is configurable from 20 cm to 88 cm long. Each ANT500 is constructed of stainless steel and features an SMA male connector, rotating shaft, and adjustable elbow.
Delivery within 2-3 weeks
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WRL-13001 HackRF One
US$646.07
This is the HackRF One, a Software Defined Radio (SDR) peripheral capable of transmission or reception of radio signals from 1MHz to 6GHz. Designed to enable test and development of modern and next generation radio technologies, HackRF One is an open source hardware platform that can be used as a USB peripheral or programmed for stand-alone operation.
Delivery within 2-3 weeks
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COM-13705 PicoBuck LED Driver
US$24.69
The PicoBuck LED Driver is an economical and easy to use driver that will allow you to control and blend three different LEDs on three different channels. By default, each channel is driven at 330mA; that current can be reduced by either presenting an analog voltage or a PWM signal to the board. Version 12 of the board adds a solderable jumper that can be closed to increase the maximum current to 660mA.
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PRT-09918 Molex Jumper 2 Wire Assembly
US$1.39
This is a simple two wire cable. Great for jumping from board to board or just about anything else. There is a 2-pin Molex connector with 0.1" spacing on one end, bare cable on the opposite end. It also comes with the mating connector for the Molex. Dimensions: 6" length.
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SEN-13582 SparkFun Line Follower Array
US$47.35
This is a long board consisting of eight IR sensors that have been configured to read as digital bits! We have designed the SparkFun Lin Follower Arrays to follow a dark line of about ¾ inch width or smaller (spray paint or electrical tape) on a light background.
Delivery within 2-3 weeks
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DEV-13343 LilyPad Reed Switch
US$6.52
The LilyPad Reed Switch is a simple breakout for a reed switch that will make it easy to use in e-textiles circuits in exactly the same manner that you can currently use the LilyPad Button and Switch. In order to make it more durable for wearable use, we’ve used a different style of reed switch, which is insulated.
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DEV-12898 SparkFun MIDI Shield
US$38.19
The SparkFun MIDI Shield board gives your Arduino-based device access to the antiquated, but still widely used and well supported MIDI communication protocol, so you can control synthesizers, sequencers, and other musical devices.
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DEV-13262 CAN-BUS Shield
US$40.02
The CAN-BUS Shield provides your Arduino or Redboard with CAN-BUS capabilities and allows you to hack your vehicle. It uses the Microchip MCP2515 CAN controller with the MCP2551 CAN transceiver. CAN connection is via a standard 9-way sub-D for use with OBD-II cable. Ideal for automative CAN application.
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CAB-13685 JST to Breadboard Jumper (3-pin)
US$2.45
This is a simple jumper adapter cable that comes pre-terminated with a female JST connector on one end and a breadboard hookup pigtail on the other. This cable makes it easy to connect components with a JST connector to a breadboard or an Arduino-based device’s pins.
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PRT-11247 Resistor 330 Ohm - SMD (strip of 50)
US$1.82

Each pack includes 50 tiny 0603 SMD resistors in cut-tape packaging. Features: 330 Ohm, 1/10th Watt, 1% Tolerance.

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BOB-13655 SparkFun SOIC to DIP Adapter - 8-Pin
US$4.92
The SparkFun 8-Pin SOIC to DIP Adapter is a small PCB that lets you adapt SOIC packages into a DIP footprint. These tiny boards are useful for modding and upgrading devices that use 8-pin DIP ICs, when the upgraded IC is only available in a SOIC footprint.
Delivery within 2-3 weeks
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WRL-12938 SparkFun FM Tuner Evaluation Board - Si4703
US$34.23
This is an evaluation board for the Silicon Laboratories Si4703 FM tuner chip. Beyond enabling you to tune in to FM radio stations, the Si4703 is also capable of detecting and processing both Radio Data Service (RDS) and Radio Broadcast Data Service (RBDS) information. The Si4703 even does a very good job of filtering and carrier detection.
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PRT-13268 SparkFun Snappable Protoboard
US$12.54
The SparkFun Snappable Protoboard is a large PCB crisscrossed with v-scored lines so that you can choose just how long and wide you need your custom protoboard to be. The Snapable Protoboard makes obtaining the perfect sized prototyping area for any given project as straight forward and uncomplicated as possible.
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DEV-13630 SparkFun Photon Weather Shield
US$46.13
The SparkFun Photon Weather Shield is an easy to use add-on board that grants you access to barometric pressure, relative humidity, and temperature. There are also connections on this shield to optional sensors such as wind speed, direction, rain gauge and soil readings!
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DEV-13626 SparkFun Photon Battery Shield
US$22.74
The SparkFun Photon Battery Shield provides you with an easy way to power your Photon module with a Lithium polymer battery. Not only can the Battery Shield power you Photon but you will also be able to charge a LiPo bettery through it as well.
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DEV-13629 SparkFun Photon IMU Shield
US$36.33
This is the SparkFun Photon IMU Shield, a versatile motion-sensing add-on board for your Photon device. Each IMU shield is equipped with an on-board LSM9DS1 system-in-a-chip that houses a 3-axis accelerometer, 3-axis gyroscope, and 3-axis magnetometer. That’s right, 9 degrees of freedom (9DOF) from a single IC!
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DEV-13628 SparkFun Photon Micro OLED Shield
US$32.13
The SparkFun Photon Micro OLED Shield breaks out a small monochrome, blue-on-black OLED to use with your Photon module. It’s “micro”, but it still packs a punch – the OLED display is crisp, and you can fit a deceivingly large amount of graphics on there.
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DEV-13598 SparkFun Photon ProtoShield
US$3.50
This ProtoShield mates easily with your Photon module and provides a small soldering area and separated power and I2C hook-ups. With the SparkFun Photon ProtoShield you have the control over what kind of project you design for your Photon.
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DEV-13328 SparkFun Photon Wearable Shield
US$6.93
The SparkFun Photon Wearable Shield makes it easy to add the WiFi enabled Photon to any wearables project. Each pin on the Photon is broken out into large sewing pins. Use conductive thread to make your next wearables projects. The large pins are also great for using conductive paint to create any project that needs WiFi.
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BOB-13282 SparkFun RGB LED Breakout - WS2812B
US$6.52
This is a breakout board for the WS2812B RGB LED. The WS2812B is actually an RGB LED with a WS2811 built right into the LED! All the necessary pins are broken out to 0.1" spaced headers for easy bread-boarding.
Delivery within 2-3 weeks
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WIG-13660 WAV Trigger
US$84.86
The WAV Trigger is a unique high-fidelity polyphonic audio player with surprising capabilities. Supporting up to 2048 uncompressed 16-bit, 44.1kHz wav files – the same quality as an audio CD – the WAV Trigger can play and mix up to 14 stereo tracks simultaneously and independently, with very low latency.
Delivery within 2-3 weeks
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WRL-13231 SparkFun ESP8266 Thing
US$27.58
This is essentially a breakout and development board for the ESP8266 WiFi SoC. Why the name? We lovingly call it the Thing due to it being the perfect foundation for your Internet of Things. Over the past year, the ESP8266 has been a growing star among IoT or WiFi-related projects.
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BOB-13099 SparkFun Rotary Switch Potentiometer Breakout
US$4.09
This is a small board the allows you to add resistors to a 10-position rotary switch (COM-13253), turning it into a potentiometer with 10 discrete steps.
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PRT-13032 SparkFun Breadboard Power Supply Stick - 5V/3.3V
US$20.93
This is a very simple board that takes a 6-12V input voltage and outputs a selectable 5V or 3.3V regulated voltage. All headers are 0.1" pitch for simple insertion into a breadboard.
Delivery within 2-3 weeks
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ROB-12779 EasyDriver - Stepper Motor Driver A3967
US$20.93
The EasyDriver is a simple to use stepper motor driver, compatible with anything that can output a digital 0 to 5V pulse (or 0 to 3.3V pulse if you solder SJ2 closed on the EasyDriver). It requires a 6V to 30V supply to power the motor and can power any voltage of stepper motor.
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SEN-13285 PIR Motion Sensor (JST)
US$14.64
This is a simple to use motion sensor. Power it up and wait 1-2 seconds for the sensor to get a snapshot of the still room. If anything moves after that period, the ‘alarm’ pin will go low. This unit works great from 5 to 12V. You can also install a jumper wire past the 5V regulator on board to make this unit work at 3.3V. Sensor uses 1.6mA@3.3V.
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COM-12959 SparkFun MOSFET Power Control Kit
US$7.43
This is a breakout PTH soldering kit for for the RFP30N06LE N-Channel MOSFET. This kit is extremely simple to assemble with only 10 pins to solder.
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SEN-12784 SparkFun ToF Range Finder Breakout - VL6180
US$28.81
This is a breakout for the VL6180 distance sensor. Unlike most distance sensors that rely reflected light intensity or reflected angles to determine range, the VL6180 uses a precise clock to measure the time it takes light to bounce back from a surface.
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BOB-13021 SparkFun RJ45 MagJack Breakout
US$8.47
This is the SparkFun RJ45 MagJack Breakout, a simple board that will provide you with a way to put an ethernet port into your breadboard. The SparkFun RJ45 MagJack Breakout is the same one found in our very own mbed Starter Kit and breaks out each pin from the ethernet jack.
Delivery within 2-3 weeks
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ROB-12859 Big Easy Driver
US$26.13
This is a stepper motor driver board for bi-polar stepper motors up to a max 2A/phase. It is based on the Allegro A4988 stepper driver chip. It’s the next version of the popular Easy Driver board.
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PRT-13164 Jumper Wire - 0.1", 3-pin, 6" (Black, Red, White)
US$2.45
This is a simple three wire cable. Each cable is 6" long and is great for jumping from board to board or just about anything else. There is a 3-pin JST connector with 0.1" spacing on both ends.
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ROB-13176 Micro Gripper Kit A - Straight Mount
US$9.73
This Micro Gripper is capable of opening 2.75" wide max, has an overall body length of 1.7" long with a 1.3" wide servo housing body, and offers three 6-32 mounting thru-holes along the edges of the servo housing.
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ROB-13177 Micro Gripper Kit B - Hub Mount
US$9.73
This Micro Gripper is capable of opening 2.75" wide max, has an overall body dimension of 2.6" long by 1.3" wide, and offers the 0.77" hub pattern for easy mounting on Actobotics components.
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KIT-13198 SparkFun RFID Starter Kit
US$72.73
This is an all-in-one kit that offer everything you need to get your next RFID project off the ground. This kit includes our USB RFID Reader, ID-12LA RFID module, and two 125kHz RFID cards. We’ve done away with the annoying clamshell and now offer this in the same type of box as the rest of our kits.
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TOL-13193 Crimping Pliers - 28-20 AWG
US$43.49
These pliers are capable of crimping very small 0.25 - 1.5mm crimp pins and 28-20 AWG wires together. All you need to do is press the handles together with enough force and the pliers will release, once this happens you know your crimping is done! These work well with JST PH, SH, SHL, and ZH series pins.
Delivery within 2-3 weeks
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BOB-12731 SparkFun USB to Serial Breakout - FT232RL
US$24.20
This is the SparkFun USB to Serial Breakout for the FT232RL, a small board with a built in USB to serial UART interface. This little breakout is built around the FT232RL IC from FTDI, with an internal oscillator, EEPROM, and a 28-pin SSOP package this is a serious little chip.
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KIT-13006 SparkFun Decade Resistance Box
US$51.49
This is an involved PTH soldering kit that allows you to quickly and accurately dial in a specific resistance value between 0 and 999,990 Ω, in 10 Ω increments. The concept is simple, a decade box is a tool that contains resistors of many values that can be accessed via mechanical switches.
Delivery within 2-3 weeks
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DEV-13160 SparkFun Mini Inventor's Kit for Redboard
US$69.93
The SparkFun Mini Inventor’s Kit (SMIK) is a great way to get started with programming and hardware interaction with the Arduino programming language. This mini SIK includes everything you need to complete 8 circuits that will teach you how to blink an LED, read sensors, drive servos, and more. You don’t need any previous programming or electronics experience to use this kit.
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COM-13106 LED - 3W Aluminum PCB (5 Pack, Red)
US$11.83
This 5 pack of red 3 Watt aluminum backed PCBs is sure to shed a lot of light on any project you add it to. 
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PRT-12699 Solder-able Breadboard - Large
US$13.98
This is the Large Solder-able Breadboard. A bare PCB that is the exact size as our full-size breadboard with the same connections to pins and power rails. This board is especially useful for preserving a prototype or experiment you just created on a solderless breadboard by soldering all the pieces in place.
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LAB-13110 SparkFun Inventor's Kit Parts Refill Pack
US$34.93

Kit Includes: 5x Mini Photocell, 5x 10k Trimpot, 2x Gear Hobby Motor, 2x Generic Servo (Sub-Micro Size), 2x Bag of 25 10kOhm Resistor, 2x Bag of 25 330Ohm Resistor, 5x 30 Pack of Jumper Wires, 10x 1N4148 Diode, 1x Assorted LED (20 Pack) - (5 Red, 5 Blue, 5 Yellow, 5 Green). 1x Simon Buttons (4 Pack) - (1 Red, 1 Blue, 1 Yellow, 1 Green).

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DEV-12935 FTDI SmartBasic
US$39.13
The FTDI SmartBasic is a variation on our classic FTDI Basic board which allows you to connect a second device to the hardware serial port on an Arduino Pro, Pro Mini, or other USB-less board without compromising the ability to bootload code from the Arduino IDE.
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KIT-13053 Power Resistor Kit - 10W (25 pack)
US$8.33
This Power Resistor Kit comes with 5 each of 5 different 10 Watt resistor values including 1, 2, 4, 8, and 16 Ohms. These resistors are capable of dissipating large amounts of power without damaging themselves. This kit is perfect for testing projects that require large amounts of power while only requiring low resistance.
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PRT-13113 Battery Holder - 18650 (PTH)
US$1.25
This is a PCB mount clip to hold a 18650 Lithium Ion Cell battery. Each battery holder is sold in single units, you’ll need two for each battery. These work great for larger, high capacity applications where a drop-in rechargable cell is needed.
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PRT-13054 Raspberry Pi B+ - GPIO Shrouded Header (2x20)
US$1.33
This 2x20 shrouded header has the same number and spacing of pins as the Raspberry Pi B+ so you can easily connect via ribbon cable to the low-level peripherals and get hacking! This through-hole header has 40 0.1"-spaced pins and is keyed for polarity.
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PRT-13082 Hook-Up Wire - Silicone 12AWG (Red, 1M)
US$6.93
This is 12AWG stranded red wire with a flexible silicone jacket. This wire is perfect for soldering and connecting any project in which you need a durable, super flexible wire.
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ROB-13065 Slip Ring - 12 Wire (2A)
US$27.93
This is a 12 wire slip ring, a remarkably simple electromechanical assembly that allows electronic signals to be passed through its rotating innards. Commonly, you’d find slip rings in wind turbines, radar antennae, or anything else that requires continuous 360° rotation while maintaining an electrical connection.
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ROB-13064 Slip Ring - 6 Wire (2A)
US$20.93
This is a 6 wire slip ring, a remarkably simple electromechanical assembly that allows electronic signals to be passed through its rotating innards. Commonly, you’d find slip rings in wind turbines, radar antennae, or anything else that requires continuous 360° rotation while maintaining an electrical connection.
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ROB-13063 Slip Ring - 3 Wire (10A)
US$39.63
This is a 3 wire slip ring, a remarkably simple electromechanical assembly that allows for electronic signals and power to be passed through its rotating innards. Commonly, you’d find slip rings in wind turbines, radar antennae, or anything else that requires continuous 360° rotation while maintaining an electrical connection.
Delivery within 2-3 weeks
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BOB-12052 LTC4150 Coulomb Counter Breakout
US$22.74
This breakout is capable of constantly monitoring the current your sensor is using, is able to add it up, and will give you a pulse each time a given amount of amp-hours have been used. When used effectively and if you start with a full battery, you’ll always know exactly how much of it is left!
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DEV-13035 Intel® Edison Block - OLED
US$34.93
Equip your Edison with a graphic display using the Edison OLED Block! Simply snap this board onto your Edison to gain access to a 0.66", 64x48 pixel monochrome OLED. To add some control over your Edison and the OLED, this board also includes a small joystick and a pair of push-buttons which can be used them to create a game, file navigator, or more!
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DEV-13037 Intel® Edison Block - Battery
US$34.93
The Battery Block brings a single cell LiPo Charger and 400mah battery to power an Intel® Edision and expansion cards. The Battery board can be used with an external battery to increase runtime of your Edison which can be pluged in with a micro USB cable to charge.
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BOB-12918 Breakout Board for MCP4725 I2C DAC
US$7.43
The MCP4725 is an I2C controlled Digital-to-Analog converter (DAC). A DAC allows you to send analog signal, such as a sine wave, from a digital source, such as the I2C interface on the Arduino microcontroller.
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PRT-13060 Terminal Block - 3 Position (15A, 600V)
US$3.43
Each 3 position block offers a screw pitch of 10mm with a max current of 15A and a max voltage tolerance of 600V before risking meltdown or implosion.
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COM-13013 Mini Microswitch - SPDT (Lever, 2-pack)
US$5.53
This is a 3-terminal microswitch two pack, each equipped with a 17mm lever actuator. These switches have a great ‘clicky’ sound to them with a nice tactile feel and are perfect when used for a slider, 3D printer, or robot project. Each microswitch is rated for 5A at 250VAC.
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PRT-12978 Alligator Test Leads - Multicolored (10 Pack)
US$5.53
Each lead in this pack of ten is 50cm long with a rubber shrouded alligator clip on each end. There are five different colors, you get two each of: red, green, white, black and yellow.
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COM-13004 microSD USB Reader
US$7.81
This is an awesome little microSD USB reader. Just slide your microSD card into the inside of the USB connector, then stick this into a USB port and the card’s contents will pop up on your computer. 
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COM-12999 LED - RGB Addressable, PTH, 5mm Clear (5 Pack)
US$4.92
This is a PTH Addressable RGB LED with a WS2812 control IC built right into the LED.
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WRL-12847 XBee Shield
US$34.93
Xbee radios are an awesome way to add wireless capability to your Arduino project and now it’s even easier with the XBee Shield. The shield form-factor mates directly with any dev board that has an Arduino standard footprint and equips it with wireless communication capabilities using the popular XBee module. 
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SEN-12909 Pressure Sensor - MS5803-14BA Breakout
US$83.93
This is the MS5803-14BA Pressure Sensor Breakout, a high resolution pressure sensor with both an I2C and SPI interface. This MEMS pressure sensor measures the absolute pressure of the fluid around it which includes air, water, and anything else that acts like a viscous fluid.
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COM-12986 LED - RGB Addressable, PTH, 5mm Diffused (5 Pack)
COM-12986 LED - RGB Addressable, PTH, 5mm Diffused (5 Pack)
US$4.92
These are PTH Addressable RGB LEDs with a WS2812 control IC built right into the them.
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CAB-12970 Sensor Cable - Electrode Pads (3 connector)
CAB-12970 Sensor Cable - Electrode Pads (3 connector)
US$8.78
This is your simple three conductor sensor cable with electrode pad leads. These cables are 24" long and feature a 3.5mm audio jack connector on one end with snap style receptacles for biomedical sensor pads.
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SEN-12969 Biomedical Sensor Pad (10 pack)
SEN-12969 Biomedical Sensor Pad (10 pack)
US$12.54
This is a 10 pack of Biomedical Sensor Pads, disposable electrodes that can be used to measure EEG, ECG and EMG levels. These little pads are perfect for short-term monitoring of Neurofeedback and Biofeedback purposes.
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PRT-12769 SD/MMC Socket
PRT-12769 SD/MMC Socket
US$4.19
SD cards are all over the place and they’re great for storing large amounts of data. Why not take advantage by adding an SD socket to your next data heavy project. We use it on a whole bunch of our boards! The SD/MMC ( Secure Digital Disk / Multi Media Cards) cards use a very simple SPI serial bus as well as a 4-bit proprietary bus.
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BOB-12941 SD/MMC Card Breakout
BOB-12941 SD/MMC Card Breakout
US$15.06
With SD and MMC memory prices dropping, the time is right for mass storage and datalogging. This breakout board will allow you to breakout the SD/MMC socket to a standard .1" 10-pin header. Perfect for breadboarding and the likes. Board comes fully assembled and tested as shown.
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WRL-11812 XBee Explorer USB
WRL-11812 XBee Explorer USB
US$39.05
This is a simple to use, USB to serial base unit for the Digi XBee line. This unit works with all XBee modules including the Series 1 and Series 2.5, standard and Pro version. Plug the unit into the XBee Explorer, attach a mini USB cable, and you will have direct access to the serial and programming pins on the XBee unit.
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WRL-12861 Interface Cable - SMA Female to SMA Male (25cm)
WRL-12861 Interface Cable - SMA Female to SMA Male (25cm)
US$7.53
This is a basic SMA (Sub-Miniature A) male to female connector cable. Each cable is 25cm (9.8") long and has a 50Ω impedance that can handle frequencies up to 17 GHz. 
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COM-12877 LED - RGB Addressable, PTH, 8mm (5 Pack)
COM-12877 LED - RGB Addressable, PTH, 8mm (5 Pack)
US$5.25

If you are looking for a great addressable LED in the more common LED form factor, then this is the perfect choice for you. Features: Power Supply: DC 4.5V - 6V. Internal Frequency: 800K Hz. Single Wire Single Transmission.

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KIT-12652 Pi Wedge
KIT-12652 Pi Wedge
US$7.55 US$6.99
This is a small board that connects to the Raspberry Pi’s 26-pin GPIO connector, and breaks the pins out to breadboard-friendly arrangement and spacing, and even adds a couple of decoupling capacitors on the power supply lines.
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WRL-11697 XBee Explorer Dongle
WRL-11697 XBee Explorer Dongle
US$39.05
With the XBee Explorer Dongle you can plug the unit directly into your USB port and have it act as a gateway between your computer and the XBee. No cables needed! This unit works with all XBee modules including the Series 1 and Series 2.5, standard and Pro version. The on-board voltage regulator is good up to 500mA.
Delivery within 2-3 weeks
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PRT-12791 Header - 2x23-pin Male (PTH, 0.1")
PRT-12791 Header - 2x23-pin Male (PTH, 0.1")
US$2.03
This is a 2x23 pin male PTH header. This piece is in the common configuration for Beaglebone Black headers that can be broken apart to form smaller header formations. Each pin has a spacing of 0.1" in between each other.
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PRT-12790 Stackable Header - 2x23 Pin Female
PRT-12790 2x23 Pin Stackable Header - Female
US$4.48
This is a 2x23 pin female PTH header, with extra long legs which makes great for stacking. This piece is in the common configuration for Beaglebone Black headers. Each pin has a spacing of 0.1" in between each other.
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PRT-12711 USB LiPoly Charger - Single Cell
PRT-12711 USB LiPoly Charger - Single Cell
US$26.61

If you need to charge LiPo batteries, this simple charger will do just that, and do it fast! The USB LiPo Charger is a basic charging circuit that allows you to charge 3.7V LiPo cells at a rate of 500mA or 100mA. It is designed to charge single-cell Li-Ion or Li-Polymer batteries.

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PRT-12838 Arduino Uno Enclosure - Clear Plastic
PRT-12838 Arduino Uno Enclosure - Clear Plastic
US$15.32
These cases protect your Arduino Uno from things like rogue wires that might short it out while still allowing full access to the board!
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BOB-12708 Real Time Clock Module
BOB-12708 Real Time Clock Module
US$24.20
This little breakout that uses the DS1307 to keep track of the current year, month, day as well as the current time. 
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WRL-12770 RFM12BSP Wireless Transceiver - 434MHz
WRL-12770 RFM12BSP Wireless Transceiver - 434MHz
US$9.73

This is a great inexpensive option for wireless communication; it's an ISM band FSK transceiver module implemented with a unique PLL. These modules operate in the 434MHZ band and fully comply with FCC and ETSI regulations.

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SEN-12642 Sound Detector
SEN-12642 Sound Detector
US$15.33

This is a small and very easy to use audio sensing board with three different outputs. The Sound Detector not only provides an audio output, but also a binary indication of the presence of sound, and an analog representation of its amplitude.

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PRT-12807 Header - 2x3 (Male, 0.1")
PRT-12807 Header - 2x3 (Male, 0.1")
US$0.96
This is a simple 2x3 male PTH header. This header is in the common configuration for an ISP connector. Each pin has a spacing of 0.1" in between each other.
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PRT-12702 Solder-able Breadboard - Mini
PRT-12702 Solder-able Breadboard - Mini
US$4.92
This is the Mini Solder-able Breadboard. A bare PCB that is the exact size as our mini modular breadboards with the same connections to pins and power rails. This board is especially useful for preserving a prototype or experiment you just created on a solderless breadboard by soldering all the pieces in place.
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GPS-12751 GPS Receiver - EM-506 (48 Channel)
GPS-12751 GPS Receiver - EM-506 (48 Channel)
US$67.50

This complete module is built upon the same technology as the ET-301, but includes on-board voltage regulation, LED status indicator, battery backed RAM, and a built-in patch antenna! 6-pin interface cable included. This EM-506 GPS module is powered by SiRF Star IV, it can provide you with superior sensitivity and performance even in urban canyon and dense foliage environment.

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BOB-12700 USB Type A Female Breakout
BOB-12700 USB Type A Female Breakout
US$7.14
This is a simple board that breaks out a female USB type A connector's VCC, GND, D- and D+ pins to a 0.1" pitch header. If you want to add a USB to your project, but don't want to put up with soldering tiny connectors, this is the board for you.
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PRT-12753 British Telecom Connector - BTA (female)
PRT-12753 British Telecom Connector - BTA (female)
US$2.73
These 6-pin connectors are very similar to the RJ11s we use here in North America except instead of a bottom-mounted hook lock, the BTA uses a side-mounted lock. These BTA connectors are perfect for educators or other users who need to set up a Custom Vernier analog sensor which produces a voltage that changes from high to low or vice versa.
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PRT-12045 Breadboard - Mini Modular (Blue)
PRT-12045 Breadboard - Mini Modular (Blue)
US$5.53
With 170 tie points there's just enough room to build and test simple circuits; They're also great for breaking out DIP package ICs to jumper wires! If you run out of room, no worries, these mini breadboards can be snapped together to form larger stretches of board. Dimensions: 47 x 35 x 10mm.
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DEV-12640 Pro Micro - 5V/16MHz
DEV-12640 Pro Micro - 5V/16MHz
US$27.93
This tiny little board does all of the neat-o Arduino tricks that you're familiar with: 4 channels of 10-bit ADC, 5 PWM pins, 12 DIOs as well as hardware serial connections Rx and Tx.
Delivery within 2-3 weeks
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PRT-12083 Battery Holder 4xAA with Cover and Switch
PRT-12083 Battery Holder 4xAA with Cover and Switch
US$2.73
This holder features a removable, sliding cover, which is secured with a small phillips head screw. Another bonus is the ON/OFF switch which can be used to control power to your project.
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SEN-12589 RedBot Sensor - Accelerometer
SEN-12589 RedBot Sensor - Accelerometer
US$13.93
This is an add-on for your RedBot that provides bump and motion detection. The sensor works by measuring acceleration forces on the x, y, and z axis. By measuring the amount of acceleration (or lack there of) your robot can get a better understanding of its movements.
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SEN-11999 RedBot Sensor - Mechanical Bumper
SEN-11999 RedBot Sensor - Mechanical Bumper
US$8.33
These simple switches are the Mechanical Bumper sensor for the SparkFun RedBot, giving you the ability to detect a collision before it really happens. When the "whisker" bumps into a foreign object it will make contact with a nut next to it, closing the connection and, by default, turning off the motor.
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BOB-12035 Breakout Board for USB microB
BOB-12035 Breakout Board for USB microB
US$3.93
This simple board breaks out a micro-B USB connector's VCC, GND, ID, D- and D+ pins to a 0.1" pitch header. If you want to add the popular micro-B USB to  your project, but don't want to put up with soldering the tiny connector, this is the board for you.
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COM-12694 Dot/Bar Display Driver - LM3914 (Linear)
COM-12694 Dot/Bar Display Driver - LM3914 (Linear)
US$2.73
This is the LM3914 Dot/Bar display analog-controlled LED driver that uses an alinear output scale. With this driver all it takes is a single, analog signal to drive a string of 10+ LEDs, which can be configured into either bar mode (where all LEDs below a certain point turn on) or dot mode (with only a single LED on at a time).
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COM-12096 Flexinol - 0.012" Diameter (1 foot)
COM-12096 Flexinol - 0.012" Diameter (1 foot)
US$3.85
This 0.012" Flexinol® Actuator Wires (aka shape memory Nitinol) is a one foot long piece of nickel-titanium alloy that can flex and contract when a specific amount of heat or current is applied to it and are made specifically for linear actuators to replace small motors or solenoids.
Delivery within 2-3 weeks
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COM-12704 LED - Purple 5mm
COM-12704 LED - Purple 5mm
US$0.91
This is a very basic 5mm purple LED. It has a typical forward voltage of 3.4V and a rated forward current of 30mA.
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COM-12664 NeoPixel Ring - 16 x WS2812 5050 RGB LED
COM-12664 NeoPixel Ring - 16 x WS2812 5050 RGB LED
US$18.32
This is a small chainable 1.75" (44.5mm) outer diameter board equipped with 5050 WS2812 RGB LEDs. The WS2812s are each addressable as the driver chip is located inside the LED. Each NeoPixel Stick has ~18mA constant current drive so the color will be very consistent even if the voltage varies, and requires 5V.
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SEN-11824 Barometric Pressure Sensor - BMP180 Breakout
SEN-11824 Barometric Pressure Sensor - BMP180 Breakout
US$13.93
This is a breakout board for the Bosch BMP180 high-precision, low-power digital barometer. The BMP180 offers a pressure measuring range of 300 to 1100 hPa with an accuracy down to 0.02 hPa in advanced resolution mode.
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PGM-11801 Tiny AVR Programmer
PGM-11801 Tiny AVR Programmer
US$28.06
This plugs directly into your USB port and provides a programming socket for the ATTiny45 and 85. Just slot an ATtiny into the socket, plug the programmer into your USB port and start up the Arduino IDE.
Delivery within 2-3 weeks
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PRT-12070 Solder-able Breadboard
PRT-12070 Solder-able Breadboard
US$7.81
This is the Solder-able Breadboard. A bare PCB that is the exact size as our regular breadboard with the same connections to pins and power rails. This board is especially useful for preserving a prototype or experiment you just created on a solderless breadboard by soldering all the pieces in place.
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PRT-12618 Coin Cell Battery Holder - 2xCR2032 (Enclosed)
PRT-12618 Coin Cell Battery Holder - 2xCR2032 (Enclosed)
US$2.73
This is a simple coin cell battery holder that can enclose two CR2032 batteries inside itself, and safely kept closed via two phillips head screws. Each battery holder is equipped with an On/Off slide switch and two 6" power wires (one positive and one negative) on the back.
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COM-12062 LED - Assorted (20 pack)
COM-12062 LED - Assorted (20 pack)
US$5.69
This is a pack of basic red, yellow, blue and green 5mm LEDs (5 of each) all conveniently packaged in a nice reusable ESD safe bag.
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TOL-12572 Tweezers - Curved (cross-lock, ESD Safe)
TOL-12572 Tweezers - Curved (cross-lock, ESD Safe)
US$5.88
They have a very fine tip which allows you to pick up very small parts with precision. This is a great tool to have if you're working with surface mount components or anything with very small parts. The ESD-safe coating will also help prevent electro-static damage to sensitive electronic components.
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TOL-12573 Tweezers - Straight (cross-lock, ESD Safe)
TOL-12573 Tweezers - Straight (cross-lock, ESD Safe)
US$5.88
They have a very fine tip which allows you to pick up very small parts with precision. This is a great tool to have if you're working with surface mount components or anything with very small parts. The ESD-safe coating will also help prevent electro-static damage to sensitive electronic components.
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PRT-12639 Audio Jack - 3.5mm TRRS (SMD)
PRT-12639 Audio Jack - 3.5mm TRRS (SMD)
US$1.33
TRRS connectors are the audio-style connectors that you see on some phones, MP3 players and development boards. TRRS stands for "tip, ring, ring, sleeve," which reflects the fact that, unlike a standard stereo connector, this actually has three conductors and a ground.
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TOL-12048 Roll Up Tool Bag
TOL-12048 Roll Up Tool Bag
US$15.25
This durable roll up tool bag provides you with 23 pockets to store your, pliers, flush cutters, hand-held soldering iron, spent uranium rods, screw drivers, and other small hand tool that you might need to complete a project. It even has 15 elastic loops concealed underneath a flap for storing small tools.
Delivery within 2-3 weeks
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PRT-12622 SMD LED - Green 1206 (strip of 25)
PRT-12622 SMD LED - Green 1206 (strip of 25)
US$8.19
Each pack includes 25 tiny green 1206 SMD LEDs in cut-tape packaging. These are great for status lights or for building really small LED matrices.
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PRT-12621 SMD LED - White 1206 (strip of 25)
PRT-12621 SMD LED - White 1206 (strip of 25)
US$8.78
Each pack includes 25 tiny white 1206 SMD LEDs in cut-tape packaging. These are great for status lights or for building really small LED matrices. 
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PRT-12620 SMD LED - Blue 1206 (strip of 25)
PRT-12620 SMD LED - Blue 1206 (strip of 25)
US$6.93
Eeach pack includes 25 tiny blue 1206 SMD LEDs in cut-tape packaging. These are great for status lights or for building really small LED matrices.
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PRT-12619 SMD LED - Red 1206 (strip of 25)
PRT-12619 SMD LED - Red 1206 (strip of 25)
US$4.97
Each pack includes 25 tiny red 1206 SMD LEDs in cut-tape packaging. These are great for status lights or for building really small LED matrices. 
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PRT-12002 Breadboard - Self-Adhesive (White)
PRT-12002 Breadboard - Self-Adhesive (White)
US$6.93
It has 2 power buses, 30 columns, and 10 rows - a total of 400 tie in points. All pins are spaced by a standard 0.1". The two sets of five rows are separated by about 0.3", perfect for straddling a DIP package over. The board accepts wire sizes in the range of 29-20AWG. Dimensions: 3.29 x 2.15 x 0.33" (83.5 x 54.5 x 8.5mm).
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TOL-12078 Multimeter Probes - Needle Tipped
TOL-12078 Multimeter Probes - Needle Tipped
US$8.33

These SparkFun needle tipped multimeter probes are great for attaching to multimeters, power supplies, oscilloscopes, function generators, etc. Dimensions: 36" Long.

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WRL-12580 Bluetooth Mate Gold
WRL-12580 Bluetooth Mate Gold
US$90.93
This is very similar to our BlueSMiRF modem, but it is designed specifically to be used with our Arduino Pros and LilyPad Arduinos. These modems work as a serial (RX/TX) pipe, and are a great wireless replacement for serial cables. Any serial stream from 2400 to 115200bps can be passed seamlessly from your computer to your target. We've tested these units successfully over open air at 350ft (106m)!
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COM-12021 LED RGB Strip - Bare (1M)
COM-12021 LED RGB Strip - Bare (1M)
US$14.46
This is a bare non-addressable 1 meter long RGB LED strips that come packed with 60 WS2801s per meter.
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COM-15206 LED RGB Strip - Addressable, Bare (1M) (APA104)
US$33.85

These are bare addressable 1 meter long RGB LED strips that come packed with 60 WS2812s per meter. As these are bare LED strips that have no protective coating, your project won't be water proof but there is access to each WS2812 LED and each strip length can be easily modified.

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COM-12026 LED RGB Strip - Addressable, Bare (5M)
COM-12026 LED RGB Strip - Addressable, Bare (5M)
US$153.93

These are bare addressable 5 meter long RGB LED strips that come packed with 60 WS2812s per meter. As these are bare LED strips that have no protective coating, your project won't be water proof but there is access to each WS2812 LED and each strip length can be easily modified. You will be able to control each LED RGB individually giving you the ability to create cool lighting effects for your car or perhaps under cabinet lighting in your kitchen!

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PRT-12044 Breadboard - Mini Modular (Red)
PRT-12044 Breadboard - Mini Modular (Red)
US$5.53
With 170 tie points there's just enough room to build and test simple circuits; They're also great for breaking out DIP package ICs to jumper wires! If you run out of room, no worries, these mini breadboards can be snapped together to form larger stretches of board. Dimensions: 47 x 35 x 10mm.
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PRT-12047 Breadboard - Mini Modular (Black)
PRT-12047 Breadboard - Mini Modular (Black)
US$5.53
With 170 tie points there's just enough room to build and test simple circuits; They're also great for breaking out DIP package ICs to jumper wires! If you run out of room, no worries, these mini breadboards can be snapped together to form larger stretches of board. Dimensions: 47 x 35 x 10mm.
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SEN-11931 Digital Temperature Sensor Breakout - TMP102
SEN-11931 Digital Temperature Sensor Breakout - TMP102
US$8.33

This is for the incredibly small TMP102 digital temperature sensor. The TMP102 is a digital sensor (I2C a.k.a. TWI), has a resolution of 0.0625°C, and is accurate up to 0.5°C. This is a very handy sensor that requires a very low-current.

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