Sparkfun

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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.
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US$162.33

This is the comprehensive guide to ZigBee wireless networks. This kit includes many of the parts and pieces you will need to work through the examples in the book. If you're serious about learning everything you need to know about XBee networks, this kit and the book will get you up to speed in no time (or as long as it takes you to get through the book).

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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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US$145.55
This hot-air rework station is great for professionals and hobbyists in need of tight temperature tolerances and large air flows. This unit displays a digital readout of the actual air temperature with a flow rate of up to 24L per minute. This very powerful unit can be used for multiple applications including standard SMD reflow/repair/removal, thermal IC stress testing, thermoplastic welding, and shrink-wrapping.
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US$139.93
The Intel® Edison is an ultra-small computing platform that will change the way you look at embedded electronics. Each Edison packs a huge amount of tech goodies into a tiny package while still providing the same robust strength of your go-to single-board computer. The Edison is powered by the Intel®Atom™ SoC dual-core CPU and includes an integrated WiFi, Bluetooth LE and 70-pin connector to attach a veritable slew of shield-like “Blocks,” which can be stacked on top of one another. It’s no wonder how this little guy is lowering the barrier of entry on the world of electronics! This Edison Base Kit includes all the basic ingredients you need to get started with Intel’s incredibly tiny computer platform. With this pack, you will be able to snap essential parts to your Edison that provide basic functionality and turn it into a modular Linux computer.
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US$120.30
The Qwiic Pro kit provides you with a RedBoard Turbo, two sensors, two accessory boards, and all the cables you need to start utilizing Qwiic and I2C easily. This kit was designed to allow users to get started with Arduino without the need for soldering or breadboarding. Hooking up a handful of inputs and outputs to a RedBoard has never been so easy. Use the joystick, accelerometer, or proximity sensor, and one small display for outputting text, graphics, or even a microPong game!
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US$111.93
This  is a package GPS Shield Kit with EM406 GPS receiver and headers included inside a a clear clamshell. Adding GPS to your Arduino has never been easier. Multiple GPS receivers attach easily to the shield, and with the example sketch, you will be able to locate your exact position within a few meters.
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US$108.43
The SEN-15901 is a weather meter kit requiring assembly.
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US$104.14

This GPS receiver is a complete GPS smart antenna receiver, that includes an embedded antenna and GPS receiver circuits. This low-cost unit outputs an astounding amount of position information 5 times a second. The receiver is based on the proven technology found in LOCOSYS 66 channel GPS SMD type receivers that use MediaTek chip solution.

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US$99.95
This is a fingerprint scanner capable of gathering and storing unique finger prints. The Nitgen RS232 serial fingerprint scanner is a powerful ADSP-BF531 Blackfin based system. Simply hold your finger on the optical scanner, query the device over serial, and you will be issued a unique ID. Use that ID within your embedded system to determine access levels, time clocks, door locks, etc.
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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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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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US$89.95
These crimping pliers allow you to easily make your own wiring harnesses using crimp pins and cable housings. These are not a regular set of crimp pliers. These pliers are capable of crimping very small 1.00 - 1.9mm crimp pins. These work well with JST PH, SH, SHL, and ZH series pins as well as DF14 HRS and micro-latch from Molex.
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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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US$84.47
This is about 360 yards of conductive thread spun from stainless steel fiber and wound on a spool. You can use it as a creative way to connect various electronics onto clothing projects. This large spool is a great way to get into wearable electronics without a large upfront cost and a large enough quantity to not be afraid of making a few mistakes. 
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US$83.93
The WonderBeeps board is a really simple way of adding wireless capabilities to your next project. Simply connect a standard electret mic, supply 3-5VDC and play the Beeps! The Beeps are transmitted at around 8Khz so they can be heard but they can be embedded within other sounds to make them almost unnoticed.
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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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US$79.75

This rotary encoder has a 1024 pulse per rotation rotary encoder outputs gray code which you can interpret using a microcontroller and find out which direction the shaft is turning and by how much. This allows you to add feedback to motor control systems.

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US$79.65

This 200 pulse per rotation rotary encoder outputs gray code which you can interpret using a microcontroller and find out which direction the shaft is turning and by how much. This allows you to add feedback to motor control systems. Encoders of this kind are often used in balancing robots and dead reckoning navigation but it could also be used as a very precise input knob.

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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.
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US$72.75
The EasyVR Plus Shield 3.0 is a voice recognition shield for Arduino boards integrating an EasyVR module. It includes all of the features of the EasyVR module in a shield form factor that simplifies connection to the Arduino main board and PC.
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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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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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US$69.93
You may be the greatest living banana pianist, but how will you ever know if you don’t make yourself a banana piano? Good news! That project and countless others are easier than you think with Makey Makey. Using the Makey Makey you can make anything into a key just by connecting a few alligator clips. The Makey Makey Classic by JoyLabz is an invention kit that tricks your computer into thinking that almost anything is a keyboard. This allows you to hook up all kinds of fun things as an input. For example, play Mario with a Play-Doh keyboard or piano with fruit!
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US$67.50

This Liquid Level Sensor from Milone Technologies is a great way to measure the level of a liquid. It has a resistive output that varies with the level of the fluid. It does away with clunky mechanical floats, and easily interfaces with electronic control systems.

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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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US$67.50
The SparkFun ZOE-M8Q GPS Breakout is a high accuracy, miniaturized, GPS board that is perfect for applications that don't possess a lot of space. The on-board ZOE-M8Q is a 72-channel GNSS receiver, meaning it can receive signals from the GPS, GLONASS, BeiDou, and Galileo constellations. This increases precision and decreases lock time and thanks to the onboard rechargable battery you'll have backup power enabling the GPS to get a hot lock within seconds! Additionally, this u-blox receiver supports I2C (u-blox calls this Display Data Channel) which made it perfect for the Qwiic compatibility so we don't have to use up our precious UART ports. Utilizing our handy Qwiic system, no soldering is required to connect it to the rest of your system. However, we still have broken out 0.1"-spaced pins in case you prefer to use a breadboard.
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US$63.47
The SparkFun OpenLog Artemis is an open source data logger that comes preprogrammed to automatically log IMU, GPS, serial data, and various pressure, humidity, and distance sensors. All without writing a single line of code! OpenLog Artemis, or "OLA," automatically detects, configures, and logs Qwiic sensors. The OLA is specifically designed for users who just need to capture a lot of data to a CSV and get back to their larger project.
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US$58.92
Fingerprint scanners are awesome! Why use a key when you have one right at the tip of your finger? Unfortunately, they’re often unreliable or difficult to implement. Well not anymore! This great GT-521F32 fingerprint module from ADH-Tech communicates over TTL Serial so you can easily embed it into your next project. The module itself does all of the heavy lifting behind reading and identifying the fingerprints with an onboard optical sensor and 32-bit ARM Cortex M3 processor. This module is the economical version of the GT-521F52 and can store up to 200 different fingerprints. It is capable of 360° fingerprint recognition and download/upload templates using serial interface. Additionally, the GT-521Fxx series features a resolution of 450dpi, with a false acceptance rate of <0.001% and a false rejection rate of <0.1% while only needing <1.5 seconds to identify a unique fingerprint!
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US$55.93
This is a combination of  3-axis gyroscope and a 3-axis accelerometer on the same onboard Digital Motion Processor™ (DMP™) capable of processing complex 9-axis MotionFusion algorithms.
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US$55.93
The SparkFun SAM-M8Q GPS Breakout is a high quality, GPS board with equally impressive configuration options. The SAM-M8Q is a 72-channel GNSS receiver, meaning it can receive signals from the GPS, GLONASS, Galileo, and BeiDou constellations. This increases precision and decreases lock time and thanks to the onboard rechargable battery, you'll have backup power enabling the GPS to get a hot lock within seconds! Additionally, this u-blox receiver supports I2C (u-blox calls this Display Data Channel) which made it perfect for the Qwiic compatibility so we don't have to use up our precious UART ports. Utilizing our handy Qwiic system, no soldering is required to connect it to the rest of your system. However, we still have broken out 0.1"-spaced pins in case you prefer to use a breadboard.
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US$53.13
This 200 pulse per rotation single-output encoder outputs electrical pulses which you can interpret using a microcontroller to find the position of the input shaft. This allows you to add feedback to motor control systems. Encoders of this kind are often used in balancing robots and dead reckoning navigation.
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US$53.13
Everything you need to get started with 28 pin PICAXE microcontrollers! Kit Includes: PICAXE 28X1 IC. PCB and Parts. Interface cables. Battery Holder. Software CD.
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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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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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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.
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US$50.33
The SparkFun ESP32 Thing Power Control Shield enables the ESP32 Thing to switch up to 5A of a DC load, providing a wide variety of options to control your next project! With a default voltage range of 5–28VDC, power can be connected to this shield in one of two ways. The first is the barrel connector, but with a maximum current rating of 2.5A (designed for light loads). The second option is on the 3-pin screw terminal, which has connections for VCC, ground and a 5V output. The supply voltage is regulated down to 5V to power the ESP32 Thing, as well as a fan to keep the board cool under heavy loads.
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US$50.14
Polymorph is a non-toxic, biodegradable polyester with a low melting temperature of about 60°C (140°F). Prototype plastic parts can be made by simply heating the plastic beads in hot water until they turn clear and then kneading them together and shaping by hand. When it cools it becomes a nylon-like white plastic. Polymorph can be re-used by simply re-heating and re-shaping. Plastic beads are supplied in a re-usable plastic container.
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US$49.28

This is a package of a hundred 12 inch single female to female jumper wire set good for prototyping wire connection. Comes in five colors of 20 jumpers each.

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US$49.28

This is a package of a hundred 12 inch single female to male jumper wire set good for prototyping wire connection. Use these to jumper from any male or female header on any board. Multiple jumpers can be installed next to one another on a 0.1" header. Comes in 5 packages of twenty jumpers in each color (colors shown).

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US$49.28

This is a package of a hundred 12 inch single male to male jumper wire set good for prototyping wire connection.

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US$48.93
This  is a slim GPS module with -161dBm tracking sensitivity and only 27 second cold start time. The slim design makes it ideal for applications where you don't have a lot of space to work in. Really it's quite small. This 50-channel GPS module has an antenna on board and connects to your system via TTL serial.
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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.
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US$47.35

SEN-13261 OpenScale Weight and Temperature Sensor

This is a OpenScale from “SparkFun” is a simple-to-use, open source solution for measuring weight and temperature. It has the ability to read multiple types of load cells and offers a simple-to-use serial menu to configure calibration value, sample rate, time stamp and units of precision.

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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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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.
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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.
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US$41.93
This is a board that allows you to control up to two DC motors using a serial command interface. The serial interface is easy to use and it lets the user select an individual motor, the direction, and the desired speed constant (up to 10 different speed from stop to full speed).
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US$41.93

This large matrix has 64 Red, 64 Green and 64 Blue individual LEDs built into one common cathode housing. Unit comes with a black finish and a opaque LED lenses.

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US$41.93
This kit is designed to connect directly to the National Instruments myDAQ measurement and control tool. The board consists of a prototyping space with GND and 5V rails as well as each I/O line from the myDAQ broken out to standard 0.1" pitched headers.
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US$41.93
The LilyPad SimpleSnap is a new, easy way to create e-textiles projects with LilyPad that are modular and can be disassembled or broken down, it's also a great way to prototype! The SimpleSnap board is similar to the LilyPad Simple board, and has the same functionality except for two major differences: A built-in rechargeable Lithium Polymer battery and female snap connectors.
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US$40.63
RFID (radio-frequency identification) is the wireless non-contact use of radio-frequency electromagnetic fields, for the purposes of identifying and tracking tags attached to objects. This is the ID-3LA, a very simple to use RFID reader module from ID Innovations. With a built in antenna, the only holdup is the 2mm pin spacing.
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US$40.50
This smart SMD tester is essentially a pair of multimeter tweezers. This allows you to troubleshoot circuits with small SMD parts without having to fumble with large probes or long wires. Test resistors, capacitors and diodes one-handed!
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US$40.50
The MCP9600 Breakout is a high accuracy Thermocouple Amplifier equipped with an I2C interface, accessed over our Qwiic system.
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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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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.
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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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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.
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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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US$38.57
If you’re ready to step up your Arduino game from older 8-bit/16MHz microcontrollers, the SparkFun RedBoard Turbo is a formidable alternative. At its heart, the RedBoard Turbo uses the ATSAMD21G18, which is an ARM Cortex M0+, 32-bit microcontroller that can run at up to 48MHz. With an impressive 4MB of external flash memory and a UF2 (USB Flashing Format) bootloader, the RedBoard Turbo provides you with an economical and easy to use development platform if you're needing more power than the classic RedBoard.
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US$38.57
The SparkFun Qwiic Motor Driver Kit gives you the basic parts needed to get up and running quickly with a motor driven project. Along with the included Qwiic Motor Driver is a 100mm Qwiic cable, a pair of hobby gearmotors, and a LiPo battery as a power supply. The SparkFun Qwiic Motor Driver boasts 4245 PSOC and 2-channel motor ports, the SparkFun Qwiic Motor Driver is designed to communicate over I2C to make setting up your next robotic project as fast and easy as possible! Utilizing our handy Qwiic system and screw terminals for motor and power hook-up, no soldering is required to connect it to the rest of your system.
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US$38.28
The SparkFun GNSS Chip Antenna Evaluation Board makes it easy to test out various sized GPS antennas and geometries. Six different chip antennas have been populated on this board, each with a U.FL connector to attach your chip to the antenna! We've even v-scored the board so you can snap the six antenna's apart and just have the one you need. If you aren't picky about your antenna and/or each of the antennas work well for your applications, you will get six antennas to use in various project. Since these are GNSS antennas, they will work with GPS as well as GLONASS, Galileo, BeiDou, and other worldwide systems.
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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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US$37.73
This is a contactless linear potentiometer used for liquid level and other harsh applications. This innovative sensor allows designers to retroactively assemble the sensor on the outside of pneumatic and hydraulic cylinders, which connects with the internal magnet of the cylinder.
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