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DescriptionThis is the SparkFun XBee Explorer Dongle unit for the Digi XBee module line. 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

DescriptionThe Raspberry Pi Zero Case has been designed to fit both the Pi Zero and the Pi Zero W. These official cases consist of several parts and protect the Raspberry Pi Zero from things like rogue wires that might short it out while still allowing full access to the board. Simply snap the RPi into the bottom half of the enclosure， then snap on a desired top. No tools required!Each case has a standard base featuring a cut-out to allow access to the GPIO， and a choice of three lids：a standard lid， a GPIO lid(allowing access to the GPIO pins from above)and a camera lid(which， when used with the short camera cable supplied， allows the Raspberry Pi camera to be fitted neatly inside it). Additionally， each case includes a 4cm long CSI cable and four rubber feet.Note：This case doesNOTinclude a Raspberry Pi or Camera Module.

DescriptionThe LIS3DH Breakout is a smart， low-power， three-axis， capacitive micro-machined accelerometer with 12 bits of resolution that you can use to add translation detection to your project. It would be classified as a 3DoF， or 3 Degrees of Free

DescriptionThis is a 220 Ohm， 1/4th Watt， +/- 5% tolerance PTH resistor. Commonly used in breadboards and perf boards. We've opted for a new and more breadboard-friendly lead thickness(they're a bit thicker than our last ones).Note：Sold as singles.FeaturesTolerance：±5%Power(Watts)：0.25W， 1/4WComposition：Carbon FilmFeatures：Flame Retardant Coating， SafetyTemperature Coefficient：0/ -400ppm/℃Operating Temperature：-55℃ ～ 155℃Package / Case：AxialSize / Dimension：0.091"" Dia x 0.236"" L(2.30mm x 6.00mm)Number of Terminations：2Resistance：220 Ohms

DescriptionThe SN74HC595N is a simple 8-bit shift register IC. Simply put， this shift register is a device that allows additional inputs or outputs to be added to a microcontroller by converting data between parallel and serial formats. Your chosen microprocessor is able to communicate with the The SN74HC595N using serial information then gathers or outputs information in a parallel(multi-pin)format. Essentially it takes 8 bits from the serial input and then outputs them to 8 pins.This small DIP packaged IC contains an 8-bit， serial-in parallel-out shift register that feeds an 8-bit D-type storage register with parallel 3-state outputs.Note：This is a drop-in replacement for the 74HC595 shift register IC and should function just fine in any application the previous version could.Get started with the Shift Register GuideFeatures8-Bit Serial-In， Parallel-Out ShiftWide Operating Voltage Range of 2 V to 6 VHigh-Current 3-State Outputs Can Drive Up to 15 LSTTL LoadsLow Power Consumption：80-μA±6-mA Output Drive at 5 V

DescriptionThis is a 5-pin JST-ZHR cable that's terminated on the end with breadboard breadboard compatible Dupont connectors. It's the same cable that comes with our SPS30 Particulate Matter Sensor and is a great spare if you need one or if you happ

DescriptionThis is a jumper adapter cable that comes pre-terminated with a female Qwiic JST connector on one end and female connectors on the other. The cable insulation is made from a highly malleable material making it more flexible than our origina

DescriptionThis 2x20 pin female header is meant to allow you to extend the reach of any board with the standard 2x20 GPIO pin footprint like the Raspberry Pi， Google Coral， and NVIDIA Jetson. You can also solder it to Pi HATs that do not have headers on the board. This is assuming that the board is only populated on the top of the board or the height of the components do not get in the way if it is a two layer board.The pin header is 16mm in height and the pin length is 7.30mm. This header also has standard 0.1" spacing.Note：Please note that this product is just the header. The Raspberry Pi， enclosure， Pi Wedge， and breadboard are sold separately.

This is the basic L7805 voltage regulator、a three-terminal positive regulator with a 5V fixed output voltage. This fixed regulator provides a local regulation、internal current limiting、thermal shut-down control、and safe area protection for your proje

DescriptionThese are 101mm long 26AWG jumpers with male connectors on both ends. Use these to jumper from any female header on any board to any other female header. Combine these with our female-to-female jumpers to create a male-to-female jumper. Multiple jumpers can be installed next to one another on a 0.1" header.Comes as one pack of 30 jumpers with an assortment of colors.Features4" long

DescriptionThis is a 16mm deluxe thumb joystick and is very similar to the 'analog' joysticks found inside PlayStation controllers. Directional movements are provided simply by two potentiometers - one for each axis. These 10k potentiometers will read the position changes for the joystick's full range of physical motion. This joystick also has a select button that is actuated when the joystick is pressed down.The mechanical parts found in this joystick are mostly metal and are considered far sturdier(rugged， if you will)than other， plastic joystick options.Note：This thumb joystick does not include a top cap and it will need to be purchased separately. Additionally， the leads on the housing of this joystick are much thicker than the leads on the trimpots &； push button components. When soldering to BOB-9110， we recommend using a pair of fine tip tweezers to guide each pin into the correct hole before pushing down.

DescriptionThis is a simple pack of five Pink LilyPad LEDs that are still attached to one another， letting you snap the LEDs apart at your leisure to sew into clothing or whatever else you can dream up.LilyPad is a wearable e-textile technology d

DescriptionThis is a simple pack of five Blue LilyPad LEDs that are still attached to one another， letting you snap the LEDs apart at your leisure to sew into clothing or whatever else you can dream up.LilyPad is a wearable e-textile technology d

DescriptionThe SparkFun Qwiic ToF Imager is a state of the art， 64 pixel Time-of-Flight(ToF)4 meter ranging sensor built around the VL53L5CX from ST. This chip integrates a SPAD array， physical infrared filters， and diffractive optical elements(DOE)to

DescriptionArduino is an open-source physical computing platform based on a simple i/o board and a development environment that implements the Processing/Wiring language. Arduino can be used to develop stand-alone interactive objects or can be connected to software on your computer(e.g. Flash， Processing， MaxMSP). The open-source IDE can be downloaded for free(currently for Mac OS X， Windows， and Linux).The Arduino Mega is a microcontroller board based on the ATmega2560. It has 54 digital input/output pins(of which 14 can be used as PWM outputs)， 16 analog inputs， 4 UARTs(hardware serial ports)， a 16 MHz crystal oscillator， a USB connection， a power jack， an ICSP header， and a reset button. It contains everything needed to support the microcontroller； simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.Never fear for accidental electrical discharge， either since since the Mega also includes a plastic base plate to protect it!The Mega 2560 R3 also adds SDA and SCL pins next to the AREF.In addition， there are two new pins placed near the RESET pin. One is the IOREF that allow the shields to adapt to the voltage provided from the board.The other is a not connected and is reserved for future purposes.The Mega 2560 R3 works with all existing shields but can adapt to new shields which use these additional pins.Not sure which Arduino or Arduino-compatible board is right for you? Check out our Arduino Buying Guide!FeaturesATmega2560 microcontrollerInput voltage - 7-12V54 Digital I/O Pins(14 PWM outputs)16 Analog Inputs256k Flash Memory16Mhz Clock Speed

DescriptionTRRS 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. Some devices use the extra conductor for a microphone(like hands-free headsets)or to carry a video signal(like in some MP3/MP4 players). If you're hacking on something that has a 4-conductor audio jack， being able to plug straight in will keep your build clean and simple.Note：This plug allows you to add a custom length of wire to your connector or repair a broken shroud on an existing cable you just cannot live without. Unfortunately， the supplier has not provided a datasheet or dimensional drawing please see the similar documents provided by other SparkFun products on the "documents" tab.

DescriptionThe MQ-2 is a smoke and combustible gas sensor from Winsen. It can detect flammable gas in a range of 300 - 10000ppm. It's most common use is domestic gas leakage alarms and detectors with a high sensitivity to propane and smoke. The sensing material is SNO2 for which the conductivity is lower in clean environments and higher when smoke or flammable gas is present. A simple circuit makes measuring this change in conductivity and turning it into data fairly straight-forward， but does require some calibration.For easy Solderability； use our Gas Sensor Breakout Board.

DescriptionThis straight bar load cell(sometimes called a strain gauge)can translate up to 10kg of pressure(force)into an electrical signal. Each load cell is able to measure the electrical resistance that changes in response to， and proportional of， the strain(e.g. pressure or force)applied to the bar. With this gauge you will be able to tell just how heavy an object is， if an object's weight changes over time， or if you simply need to sense the presence of an object by measuring strain or load applied to a surface.Each straight bar load cell is made from an aluminum-alloy and is capable of reading a capacity of 10kg. These load cells have four strain gauges that are hooked up in a wheatstone bridge formation. The color code on the wiring is as follows：red = E+， green = O+， black = E-， and white = O-. Additionally， these load cells offer an IP66 protection rating and feature two M4 and two M5 sized through-holes for mounting purposes.Get Started with the Load Cell GuideFeatures80mm×12.7mm×12.7mm， 250mm Wire

DescriptionThe SparkFun Qwiic Adapter provides the perfect means to make any old I2C board into a Qwiic-enabled board. This adapter breaks out the I2C pins from the Qwiic connectors to pins that you can easily solder with your favorite I2C-enabled device.The Qwiic Adapter has two Qwiic connection ports， all on the same I2C bus. Four plated through holes are broken out for SCL， SDA， 3.3V and GND. These pins can be used to convert an old I2C-enabled device into a Qwiic-enabled board.The SparkFun Qwiic Connect System is an ecosystem of I2C sensors， actuators， shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch， 4-pin JST connector. This reduces the amount of required PCB space， and polarized connections mean you can't hook it up wrong.Get Started with the SparkFun Qwiic Adapter GuideFeatures2x Qwiic Connection PortsBroken-out I2C Pins

DescriptionThis adjustable-temperature soldering iron is a great tool for when you don't want to break the bank but need a reliable iron to get the job done. Operating at 60W and 110V， this soldering iron can be adjusted to five different temperatures

DescriptionWith a 32-bit ARM(R)Cortex(R)-M4 RISC core， the SparkFun STM32 Thing Plus brings power and precision to your projects. The STM32 Thing Plus provides you with an economical and easy to use development platform if you're needing more power wit

DescriptionDo you own micro：bit or micro：bit Go Bundle and want to expand your skills with the new microcontroller? You are in luck! The SparkFun Inventor's Kit Bridge Pack for micro：bit was designed to provide you with an easy way to transform your m：b into full fledged learning kit! Each Bridge Pack includes all of the parts found in the SIK for micro：bit that aren't included with the Go Bundle. With the SIK Bridge Pack for micro：bit you will be able to complete circuits that will teach you how to read sensors， move motors， build Bluetooth(R)devices and more.The micro：bit is pocket-sized computer that lets you get creative with digital technology. Between the micro：bit and our shield-like bit boards you can do almost anything while coding， customizing and controlling your micro：bit from almost anywhere! You can use your micro：bit for all sorts of unique creations， from robots to musical instruments and more. At half the size of credit card， this versatile board has vast potential!Note：The Bridge Pack is NOT full SparkFun Inventor's Kit and only includes the parts to complement micro：bit Go Bundle or standalone board. That also means that this kit doesnotinclude micro：bit， which will need to be purchased separately.Get started with the micro：bit SIK Experiment GuideExamplesCircuit 0：Hello， micro：bit!Circuit 1：Blinking an LEDCircuit 2：Reading PotentiometerCircuit 3：Reading PhotoresistorCircuit 4：Driving an RGB LEDCircuit 5：Reading an SPDT SwitchCircuit 6：Reading Button PressCircuit 7：Reading the Temperature SensorCircuit 8：Using Servo MotorCircuit 9：Using BuzzerCircuit 10：Using the AccelerometerCircuit 11：Using the Compass

DescriptionWith the SparkFun Qwiic Connect System expanding every day， we want to make sure it becomes as accessible as possible but we understand there are other systems that can compliment it out there. The Qwiic to Grove Adapter Cable allows interoperability between the SparkFun Qwiic Connect System and the I2C based Grove boards from Seeed Studio. Now you can plug Seeed Studio boards you may have onto the Qwiic bus or you can use this cable to introduce Qwiic sensors， inputs， and outputs into your Grove system.Note：The Grove system has a variety of different signal systems that use the same connector. This cableonlyworks with the I2C variety.The SparkFun Qwiic connect system is an ecosystem of I2C sensors， actuators， shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch， 4-pin JST connector. This reduces the amount of required PCB space， and polarized connections mean you can't hook it up wrong.FeaturesLength：100mm

DescriptionRobots are fun， and the micro：bit is the perfect controller for learning how to build and program robots! Combining the micro：bit with the SparkFun moto：bit carrier board creates a flexible， low-cost， Qwiic-enabled robotics platform for robot enthusiasts young and old! With the SparkFun micro：bot kit you will be able to create simple robots quickly without spending hours learning how to build and program your bot.Inside each micro：bot kit you will find all the components required to build your micro：bit into a robotics powerhouse； the only part that's not included is the micro：bit itself. Simply add your own micro：bit to the provided moto：bit， assemble the kit， and you will be ready to start moving. The SparkFun micro：bot kit is a great way to get your feet wet in the world of robotics.The kit does not require any soldering and is recommended for anyone curious about robotics or the micro：bit platform.Note：The SparkFun micro：bot kit doesNOTinclude a micro：bit board. The micro：bit board will need to be purchased separately.The micro：bit is a pocket-sized computer that lets you get creative with digital technology. Between the micro：bit and our shield-like bit boards you can do almost anything while coding， customizing and controlling your micro：bit from almost anywhere! You can use your micro：bit for all sorts of unique creations， from robots to musical instruments and more. At half the size of a credit card， this versatile board has vast potential!Get started with the micro：bot kit Guide

DescriptionThe Lock Stop is a low profile， high-quality stainless steel stop that can be used on the Nomad or the Shapeoko in conjunction with the Tiger Claw(Standard or Compact)， or Gator Tooth Clamps.These hard stops help secure your job with a tight grip and serrated face， no matter what you're making.

DescriptionThis cute little coax is a champ in our RF kit! It has a right angle female U.FL(aka I-PEX)connector on both ends. Now instead of jerry-rigging a few U.FL to SMA cables together we can go straight from one U.FL device to another. As an added bonus this coax is the nice stuff - approximately 1mm in diameter and extra flexible. The 50-ohm impedance of this cable makes it well suited for almost all SparkFun RF products including GPS， LoRa， and RFID.Features200 mm length1.25 mm diameterU.FL connectors on both ends(cable side， to mate with SMD board connector)

DescriptionThe SparkFun Pulse Oximeter and Heart Rate Sensor is an I2C based biometric sensor， utilizing two chips from Maxim Integrated：the MAX32664 Biometric Sensor Hub and the MAX30101 Pulse Oximetry and Heart Rate Module. While the latter does all the sensing， the former is an incredibly small and fast Cortex M4 processor that handles all of the algorithmic calculations， digital filtering， pressure/position compensation， advanced R-wave detection， and automatic gain control. We've provided a Qwiic connector to easily connect to the I2C data lines but you will also need to connect to two additional lines. This board is very small， measuring at 1in×0.5in(25.4mm×12.7mm)， which means it will fit nicely on your finger without all the bulk.The MAX30101 does all the sensing by utilizing its internal LEDs to bounce light off the arteries and arterioles in your finger's subcutaneous layer and sensing how much light is absorbed with its photodetectors. This is known as photoplethysmography. This data is passed onto and analyzed by the MAX32664 which applies its algorithms to determine heart rate and blood oxygen saturation(SpO2). SpO2 results are reported as the percentage of hemoglobin that is saturated with oxygen. It also provides useful information such as the sensor's confidence in its reporting as well as a handy finger detection data point. To get the most out of the sensor we've written an Arduino Library to make it easy to adjust all the possible configurations.The SparkFun Qwiic connect system is an ecosystem of I2C sensors， actuators， shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch， 4-pin JST connector. This reduces the amount of required PCB space， and polarized connections mean you can't hook it up wrong.Get Started with the Pulse Oximeter and Heart Rate Monitor Hookup GuideFeaturesSparkFun Pulse Oximeter and Heart Rate SensorMAX30101 and MAX32664 sensor and sensor hubQwiic connectors for power and I2C interfaceI2C Address：0x55MAX30101 - Pulse Oximeter and Heart-Rate SensorHeart-Rate Monitor and Pulse Oximeter Sensor in LED Reflective SolutionIntegrated Cover Glass for Optimal， Robust PerformanceUltra-Low Power Operation for Mobile DevicesFast Data Output CapabilityRobust Motion Artifact ResilienceMAX32664 - Ultra-Low Power Biometric Sensor HubBiometric Sensor Hub SolutionFinger-Based Algorithms Measure Pulse Heart Rate and Pulse Blood Oxygenation Saturation(SpO2)Both Raw and processed data are availableBasic Peripheral mix optimizes size and performance

DescriptionNote：In larger installations you may need to add a decoupling capacitor between power and ground to prevent voltage dips when turning on a whole bunch of LED's simultaneously. We recommend using a 4.7μF capacitor which we sell in strips of 10.Get Started With the SparkFun LuMini LED Ring GuideFeaturesOptional Capacitor SpaceDaisy-Chainable

DescriptionThis is a USB to TTL Serial Cable which allows for a simple way to connect TTL interface devices to USB. The I/O pins of this cable are configured to operate at 3.3V specifically with a Raspberry Pi with each serial pin broken apart. Thanks to its separated pins， this cable is a perfect candidate for powering， connecting， and accessing the login and debug console on an older-version Raspberry Pi.The FTDI cable is designed around an FT232， which is housed in a USB-A connector. The other side of the cable is terminated with a separated 4-pin connector with the following pinout：RX(Yellow)， TX(Orange)， VCC(5V)(Red)， and GND(Black). A link to the FTDI drivers can be found in theDocumentssection above.Note：Please be aware that while the I/O pins in this cableoperate at 3.3V， the VCC pin is 5V. The VCC pin is NOT 3.3V like theI/O pins.

DescriptionThis is a foot-long white audio cable that has been terminated with two TRRS connectors at each end. TRRS connectors are the 3.5mm 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. Some devices use the extra conductor for a microphone(as in hands-free headsets)or to carry a video signal(as in some MP3/MP4 players). If you're hacking on something that has a 4-conductor audio jack， being able to plug straight in will keep your build clean and simple.We use and recommend this specific audio cable for our Spectacle product line.Features1ft long(30.5 cm)

DescriptionThe 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. The new voltage regulator also increased the voltage rating on the various components on the board， allowing it to be used up to the full 36V rating of the AL8805 part.Three signal inputs are provided for dimming control. You can use the PWM signal from an Arduino or your favorite microcontroller to dim each channel individually， or you can tie them all to the same PWM for simultaneous dimming. Dimming can be done by an analog voltage(20%-100% of max current by varying voltage from .5V-2.5V)or by PWM(so long as PWM minimum voltage is less than .4V and maximum voltage is more than 2.4V)for a full 0-100% range. A small jumper is provided for each channel to allow you to increase the drive strength from 330mA to 660mA. Two mounting holes for 4-40 or M3 screws are provided on either side of the board. They are perforated so they can be easily snapped off with a pair of pliers， if a smaller footprint is desired.Note：If you're going to use screw terminals， this board uses two different sizes. Check the related products for both sizes you'll need.Note：The PicoBuck LED Driver was made in collaboration with Ethan Zonca. A portion of each sale is given back to him.

DescriptionStepper motors are great motors for position control. They can be found in desktop printers， plotters， 3d printers， CNC milling machines， and anything else requiring precise position control. Steppers are a special segment of brushless moto

DescriptionIf you are not needing a lot of power to start your FPGA adventure， or are looking for a more economical option， the Alchitry Cu FPGA Development Board might be the perfect option for you! The Alchitry Cu is a "lighter" FPGA version than the Alchitry Au but still offers something completely unique. FPGAs， or Field-Programmable Gate Arrays， are an advanced development board type for engineers and hobbyists alike to experience the next step in programming with electronics. The Cu truly exemplifies the trend of more affordable and increasingly powerful FPGA boards arriving each year. This board is a fantastic starting point into the world of FPGAs and the heart of your next project. Finally， now that this board is built by SparkFun， we added a Qwiic connector for easy I2C integration!The Alchitry Cu uses the Lattice iCE40 HX FPGA with 7680 logic cells and is supported by the open source tool chain Project IceStorm. The Cu possesses 79 IO pins with eight general purpose LEDs； a 100MHz on-board clock that can be manipulated internally by the FPGA； a USB-C connector to configure and power the board； and a USB to serial interface for data transfer.By adding stackable expansion boards similar to shields or HATs called "Elements，" the Alchitry Cu is able to expand its own hardware capabilities by adding prototyping spaces， buttons， LEDs， and more!The SparkFun Qwiic Connect System is an ecosystem of I2C sensors， actuators， shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch， 4-pin JST connector. This reduces the amount of required PCB space， and polarized connections mean you can't hook it up wrong.Get Started with our Learning FPGA TutorialsFeaturesLattice iCE40-HX8K FPGA - 7680 logic elements79 IO pins(3.3V logic level)USB-C to configure and power the boardEight general purpose LEDsOne button(typically used as a reset)100MHz on-board clock(can be multiplied internally by the FPGA)Powered with 5V through USB-C port， 0.1" holes， or headersUSB to serial interface for data transfer(up to 12Mbaud)Qwiic ConnectorDimensions of 65mm×45mmExamplesFirst FPGA Project - Getting Fancy with PWMExternal IO and Metastability

DescriptionThe SparkFun Qwiic Dual Solid State Relay is a power delivery board that allows users to switch two AC loads from a low power microcontroller using the SparkFun Qwiic connect system. The board features two 25A/250VAC solid state relays that utilize the Zero Cross Trigger method so you can toggle two loads on a 60Hz AC carrier signal on and off up to 120 times per second!An ATTiny84 acts as the "brain" of the SparkFun Qwiic Dual Solid Relay to accept I2C commands to toggle the two relays as well as a few other special commands. The I2C address of the ATtiny84A is software configurable so， if you have a seriously big power project in mind， you could daisy chain over 100 Qwiic Dual Solid State Relays.Messing with such high voltage is dangerous! We've included many safety precautions onto the PCB including ground isolation between the relay and other circuitry and a milled out area isolating each side of AC. However， with all the safety precautions included with the SparkFun Qwiic Dual Solid State Relay， this is still a power accessory for users who are experienced around， and knowledgeable about high AC voltage. If you're not comfortable with handling AC voltage in this way， you may want to check out the IoT Power Relay instead.Note：The relays are rated for a max of 25A with forced air cooling. If you do not have forced air cooling， 10A max through the relays is recommended.The SparkFun Qwiic connect system is an ecosystem of I2C sensors， actuators， shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch， 4-pin JST connector. This reduces the amount of required PCB space， and polarized connections mean you can't hook it up wrong.Get Started with the SparkFun Qwiic Dual Solid State Relay GuideFeaturesOperating Voltage：2.5-3.6V(3.3V recommended)I2C Address：0x0A(Default)0x0B(Alternate via jumper select)Load Voltage Range：12-280VACMax Current(Through Relay)：25A(240VAC with forced air cooling)Zero Cross TriggerNormally Open Circuit Only2x Qwiic Connector

DescriptionThis panel mount USB micro-B extension cable enables you to more easily enclose a project that contains a USB micro-B port. The cable is 6" in length and includes two 14mm M3 screws compatible with the cable's 3mm panel mount holes， spaced 16.5mm apart.

DescriptionThe 6-Channel Temperature Monitor can measure temperatures from as low as -240℃ up to +850℃(real-world limits greatly depend on the sensors being used). Up to six 3-wire PT100 sensors(not included)can be connected for measuring up to six temperatures. Measured temperature values are sent on a serial port for data logging and/or further processing. The kit includes an optional serial LCD for displaying readouts right on the board.Note：The kit requires soldering， a Serial to USB converter， and 9V power supply. See related products for these and PT100 temperature sensors.

DescriptionThe SparkFun Level Shifting microSD Breakout is quite similar to the SparkFun microSD Transflash Breakout， but with the included level shifting hardware， this board allows you to utilize a microSD card at Arduino's SD library's top speed on a 5V system. With this small breakout board， that is not much bigger than your fingernail， adding mass storage to your project will never be easier.This breakout is also a bit unique in that it level translates all of its outputs back to the level of the hardware it's connected to.Get Started with the SparkFun Level Shifting microSD Guide

DescriptionCherry MX Keyswitches are top-of-the-line mechanical keyboard switches. They're satisfyingly "clicky"， reliable up to tens-of-millions of key presses， and a standard in gaming and programming keyboards across the globe. This 'blue' version Cherry MX Switch is favored by most due to its secondary internal actuator making it less likely to "double-tap." If you are looking for a noticeably audible and high-quality key switch， this is the perfect option for you!Most Cherry MX Switches - including this blue， MX1A-E1NW switch we carry - have a recess in their body designed to fit a small 3mm LED. Additionally， the weighting for this switch is just around 50cN(centi-Newtons).Note：If you are looking for an easy way to incorporate this switch to your project， be sure to check out or breakout board! CLICK HERE!Get Started with the Cherry MX Switch GuideFeaturesContact Form：SPSTCurrent Rating：10mAVoltage Rating：12VSwitch Weighting：50cN3mm LED Slot

DescriptionThis is a handy AVR programming cable that incorporates both the 10-pin and 6-pin ISP programming interfaces.Cable is about 12" long and mates with pins on 1/10in centers.