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。Description。These headers are made to work with the Teensy 4.1， Teensy 3.6， and Teensy 3.5 development boards. Each set of headers allows for your Teensy to be easily incorporated into a breadboard circuit or attach a shield on top of the board. This kit includes three headers(two 24-pin， and one 5-pin)， enough to connect your chosen Teensy in any configuration you need!

Description。The SparkFun LP55231 LED Driver Breakout is a self-contained solution for developing and deploying the nine-channel I2C LED controller. Remarkably simple， the breakout is equipped primarily with just the LP55231 LED controller IC， plus thr

Description。The SparkFun I2S Audio Breakout board uses the MAX98357A digital to analog converter(DAC)， which converts I2S(not be confused with I2C)audio to an analog signal to drive speakers. The I2S Audio Breakout converts the digital audio signals using the I2S standard to an analog signal and amplifies the signal using a class D amplifier which can deliver up to 3.2W of power into a 4Ω load. The board can be configured to output only the left channel audio， right channel， or both.。The SparkFun I2S Audio Breakout board is fairly simple， requiring only a few pin connections to get it up and working. By default the board is configured in "mono" operation， meaning the left and right signals are combined together to drive a single speaker. If you want a separate speaker for the left and right audio channels you'll need to cut the mono jumper. In addition to being able to select the audio channel output， the gain can also be configured in a few ways. The gain of the amplifier can be configured from as low as +3dB to as high as +15dB. While the channel selection can be configured on board， the gain however is controlled externally using the gain pin. By default， the board is configured for +9dB， but can be easily changed!。Get Started with the SparkFun I2S Audio Breakout Guide。Features。Supply Voltage Range：2.5V - 5.5V.。Output Power：3.2W into 4Ω at 5V.。Output Channel Selection：Left， Right， or Left/2 + Right/2(Default).。Sample Rate：8kHz - 96kHz.。Sample Resolution：16/32 bit.。Quiescent Current：2.4mA.。Filterless Class D Outputs。No MCLK Required。Click and Pop Reduction。Short-Circuit and Thermal Protection.

Description。This is a stainless steel， Type-K Thermocouple probe. A thermocouple works by taking two wires made of dissimilar metals， connecting them at the two ends， and making a temperature gradient between one end and the other(a 'hot' end and a '

。Description。This is a 10-pack of wires that are pre-terminated with an alligator clip on one end and a female header on the other. Alligator clips are a staple item for any workbench or makerspace， and with these cables you will be able to easily incorporate those clips into a breadboard， development platform or anything else to which you would normally be able to attach a hookup wire.。Each alligator clip with female header cable has a wire length of 30cm(that's a little less than 1ft)and a port that easily accepts a standard 0.1" connector.

Description。This is a 10-pack of wires that are pre-terminated with an alligator clip on one end and a hookup pigtail on the other. Alligator clips are a staple item for any workbench or makerspace， and with these cables you will be able to easily incorporate those clips into a breadboard， development platform or anything else to which you would normally be able to attach a hookup wire.。Each alligator clip with pigtail cable has a wire length of 30cm(that's a little less than 1ft)and a male pin that easily inserts into a standard 0.1" connector. Each pack consists of five red cables and five white cables.

Description。One ruler to rule them all. This is a basic 12 inch ruler， but made from a PCB. We have included a lots of useful information on each side of the ruler that you might use on a daily basis including Wire Gauge holes， transistor diagrams， common fractions， Roman numerals， and metric to imperial conversions. Most importantly， the ruler provides you with a straight line and centimeter markings one side and inch markings on the other side.。You'll also find a small protractor in the middle for all your angle measurement needs. While we figured you have a fairly good idea how to use a ruler we do have a tutorial to explain all the information you'll see!。Get Started with the How to use a Ruler Guide。Features。12 inch PCB ruler with markings down to 0.05" or 1/32"。30.48 cm PCB ruler with markings down to 0.1mm。Electrical Equations such as Ohm's Law and Parallel Resistors。Keyboard Alt Codes。Color Wavelengths。Protractor。Metric Prefix Summary Chart。Metric conversions。Morse Code。Transistor Diagrams。Roman Numerals。Fraction Summary。Wire Guage Chart。Tap and Drill Chart。Size：12"x 1.5"

Description。The Alchitry Au+ is the "gold" standard for FPGA development boards and it's possibly one of the strongest boards of its type on the market. The Au+ substitutes a more robust scalable FPGA chip(Xilinx XC7A100T)that allows for more complex a

Description。The SparkFun OpenScale 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.。Simply attach a four-wire or five-wire load cell of any capacity， plug the OpenScale into a USB port， open a terminal window at 9，600bps， and you'll immediately see mass readings. The SparkFun OpenScale will enable you to turn a load cell or four load sensors in a Wheatstone bridge configuration into the DIY weigh scale for your application.。The OpenScale was designed for projects and applications where the load was static(like the beehive in front of SparkFun HQ)or where constant readings are needed without user intervention(for example， on a conveyor belt system). A load cell with an equipped OpenScale can remain in place for months without needing user interaction!。On board the SparkFun OpenScale is the ATmega328P microcontroller， for addressing your communications needs and transferring your data to a serial terminal or to a data logger such as the OpenLog， an FT231 with mini USB， for USB to serial connection； the HX711， a 24-bit ADC for weigh scales； and the TMP102， for recording the ambient temperature of your system. The OpenScale communicates at a TTL level of 9，600bps 8-N-1 by default and possesses a baud rate configurable from 1，200bps to 1，000，000bps.。Get Started with the OpenScale Guide。Features。Operating Voltage：5V。Operating Ampage：80-100mA。Power Cycling above 500ms。Selectable 10SPS or 80SPS Output Data Rate。Local External Temperature Sensors。Fixed Adjustable Gain

Description。Sometimes it's nice to have a protoboard that's super long and skinny， super small， or just a bunch of holes. The SparkFun Snappable Protoboard is a large PCB crisscrossed with v-scored lines so that you can choose just how long and wide yo

。Description。When you're working with e-textiles， you have a tendency to collect a lot of small parts：LilyPad boards， bobbins， needles...the tools of the trade. Why not pick up a sturdy box to keep your bits and pieces off the floor? This large LilyPad-branded box is made from rigid cardboard printed with a fancy tone-on-tone pattern， label space and the LilyPad logo. There are even magnetic closures embedded in the lid.。We like this box because it's rigid enough to throw in a sewing bag and also looks good on a workbench or makerspace. With an inside dimension of 2 inches deep， it's big enough for batteries， fabric swatches and whatever small parts you have floating around. It also makes a great gift box if you're thinking about getting someone the gift of LilyPad!。Features。Dimensions：10.0"×6.3"×2.3"

Description。The SparkFun MAX31855K Thermocouple Breakout is a simple 14-bit resolution， SPI-compatible， serial interface thermocouple digitizer that makes reading a wide range of temperatures possible. A thermocouple works by taking two wires made of dissimilar metals， connecting them at the two ends， and making a temperature gradient between one end and the other(a 'hot' end and a 'cold' one). Once this is achieved， a voltage potential is formed and current flows. The SparkFun Thermocouple Breakout takes a standard Type-K thermocouple in one end， digitizes the temperature measured and sends that data out the other end via a SPI interface， thereby interpreting the data and translating it for you to read!。With the SparkFun Thermocouple Breakout， the thermocouple's hot junction can be read from -200℃ to +700℃ with an accuracy of ±2℃ while the cold junction， inside the MAX31855K， can only range from -20℃ to +85℃ while maintaining ±2℃ accuracy. The MAX31855K constantly measures the temperature of the cold junction using an internal temperature-sensing diode. The MAX31855K requires a power source from +3.0V to +3.6V(+3.0V nominal)and only draws 1.5mA maximum.。The Thermocouple Breakout is designed to accept a standard thermocouple connector， for convenience and compatibility with probes you may already own. These connectors aren't necessary， and you could solder a thermocouple directly into the through-holes labeled '+' and '-'. If you decide to solder the thermocouple directly to the breakout board， it is recommended that the thermocouple be mounted for strain relief to avoid breaking the thin wires. Notches for a zip-tie or wire wrapping have been provided in the PCB opposite the header for this purpose.。Features。14-bit Resolution。SPI-Compatible， Serial Interface。-200℃ to +700℃ Temperature Reading with ±2℃ Accuracy。3.0V to 3.6V(+3.0V nominal)Required。Accepts Type-K Thermocouple

Description。These stackable headers are made to work with the SparkFun Qwiic Shield for Arduino Nano or any comparable shield to connect the shield with a Arduino Nano footprint. This set includes two 15-pin headers； the pins are spaced by 0.1".。Each set of headers allows you to stack a Qwiic Nano shield on top of your Arduino Nano or plug them into a solderless breadboard.。Note：Soldering is required for functionality and physical attachment to a shield or board.

Description。The 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 Guide。Features。Operating Voltage：2.5-3.6V(3.3V recommended)。I2C Address：0x0A(Default)0x0B(Alternate via jumper select)。Load Voltage Range：12-280VAC。Max Current(Through Relay)：25A(240VAC with forced air cooling)。Zero Cross Trigger。Normally Open Circuit Only。2x Qwiic Connector

Description。This is the SparkFun Pi Wedge， a small board that connects to the 40-pin GPIO connector on the Raspberry Pi and breaks the pins out to breadboard-friendly arrangement and spacing， and even adds a couple of decoupling capacitors on the power

Description。The Teensy 4.1 is one of the most advanced and reliable development platforms on the market today. One of the biggest asks for the board is the ability to connect the 4.1 to the Internet via Ethernet. Luckily， with all the parts included in this kit(as well as a little bit of soldering)， you'll be able to easily add Ethernet functionality to your Teensy 4.1.。The Ethernet Kit for Teensy 4.1 from PJRC includes an Ethernet MagJack connector， a bare circuit board， one ribbon cable， two headers， and a capacitor. As this is a kit that require assembly， some beginner-level soldering is required.。Note：Please be aware that a Teensy 4.1 is。NOT。included with this kit and will need to be purchased separately.

Description。These standard female headers are made to work with the Particle Photon and Photon ProtoShield boards. Each header adds a great deal of connectivity to your next Photon project. Each order includes one 1x12 female header with pins that are spaced by 0.1".。If you don't have a Particle Photon， that's fine! These headers will work in any other situation when you need a 12-pin header solution!

Description。The SparkFun Qwiic SHIM for Raspberry Pi is a small， easily removable breakout that easily adds a Qwiic connector to your Raspberry Pi. The SHIM design allows you to plug directly to the Pi's I2C bus with no soldering required and the thin

Description。With Single-Board Computers(SBCs)on the rise， it is a good idea to have an easy way to interface with them. Operating on a 2.4GHz frequency， the Multimedia Wireless Keyboard possesses a normal-sized key layout， media controls and a multitouch track pad. This keyboard is powered by a built-in 850mAh LiPo battery， providing you with 500--700 hours of use. Even if you don't have a Raspberry Pi， BeagleBone or another SBC， this keyboard can work with smart TVs， mobile devices and full-blown PCs!。The Multimedia Wireless Keyboard can be charged via the attached USB cable， which stores in the same compartment as the wireless USB receiver. The track pad on the wireless keyboard not only features left and right click options， but also a scroll function. Measuring less than an inch thick， this wireless keyboard is an ideal product for on-the-go situations.。Note：The attached USB cable is for charging purposes only.。Features。317.2mm×123.6mm×18.3mm(12.4in×4.8in×0.7in)。System Requirements：HID-Compatible Device。USB Port。Windows 2000， XP， CE， Vista， 7， 8 or Higher。Linux(Debian-3.1， Red Hat-9.0， Ubuntu-8.10， Fedora-7.0)。Android OS

Description。These wireless receivers work with our 315MHz transmitters. They can easily fit into a breadboard and work well with microcontrollers to create a very simple wireless data link. Since these are only receivers， they will only work communicating data one-way， you would need two pairs(of different frequencies)to act as a transmitter/receiver pair.。Note：These modules are indiscriminate and will receive a fair amount of noise. Both the transmitter and receiver work at common frequencies and don't have IDs. Therefore， a method of filtering this noise and pairing transmitter and receiver will be necessary. The example code below shows such an example for basic operation. Please refer to the example code and links below for ways to accomplish a robust wireless data link.。Note：These receivers are almost identical to the RF link 434MHz receiver. SparkFun does everything in our power to make sure you receive the product you requested. However， if you are concerned you may have received the incorrect product you can verify which version receiver this is by running a simple test circuit.。Features。315 MHz。500ft range(given perfect conditions)。4800bps data rate。5V supply voltage

Description。These stackable headers are made to work with the Particle Photon and Photon ProtoShield boards. Each header adds a great deal of connectivity to your next Photon project. Each order includes one 1x12 stackable header with pins spaced at 0.1".。If you don't have a Particle Photon， that's fine! These headers will work in any other situation when you need a 12-pin header solution!

Description。The SparkFun Sound Detector 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 represe

Description。The 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

Description。The SparkFun Qwiic MicroPressure Sensor is a miniature breakout equipped with Honeywell's 25psi piezoresistive silicon pressure sensor. This MicroPressure Sensor offers a calibrated and compensated pressure sensing range of 60mbar to 2.5bar， easy to read 24 bit digital I2C output， and can be calibrated and compensated over a specific temperature range for sensor offset， sensitivity， temperature effects， and non-linearity using an on-board Application Specific Integrated Circuit(ASIC). With its ultra-low power consumption and Qwiic ports， you've got yourself a power packed little sensor!。Each Qwiic MicroPressure Sensor has a calibrated pressure sensing range from 1-25psi and a power consumption rate as low as 0.01mW typ. average power， 1Hz measurement frequency for ultimate portability. Used in multiple medical(blood pressure monitoring， negative pressure wound therapy)， industrial(air braking systems， gas and water meters)， and consumer uses(coffee machines， humidifiers， air beds， washing machines， dishwashers)， the SparkFun Qwiic MicroPressure Sensor is a great addition to the SparkFun Qwiic ecosystem!。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 MicroPressure Hookup Guide。Features。Pressure Type：Absolute。Operating Pressure：25psi(172.37kPa)。I2C Address：0x18。Accuracy：±0.25%。Voltage - Supply：1.8V-3.6V。Port Size：Male - 0.1"(2.5mm)Tube。Port Style：Barbless。Maximum Pressure：60psi(413.69kPa)。Compatible with a variety of liquid media。2x Qwiic Connectors

Description。The SparkFun 16-Pin SSOP to DIP Adapter is a small PCB that lets you adapt SSOP packages into a DIP footprint. These small boards are useful for modding and upgrading devices that use 14- and 16-pin DIP ICs， when the upgraded IC is only av

Description。Passive Infrared(PIR)sensors are great for detecting motion in a small area around the sensor. The 170μA SparkFun EKMC4607112K Qwiic PIR uses an EKM-series PIR sensor from Panasonic(R)paired with an ATTiny84 to interact with it using I2C

Description。Access all the pins(i.e. ATP)of the MicroMod Processor Boards with the SparkFun MicroMod ATP Carrier Board! This board breaks out the MicroMod Processor Board's pins on the M.2 connector to 0.1" spaced female headers and PTH pads on the edge of the board. This Carrier Board is great if you're interested in testing out different MicroMod Processor Boards for your application.。A modern USB-C connector makes programming easy. In addition to the pins broken out， two separate Qwiic-enabled I2C ports allow you to easily daisy chain Qwiic-enabled devices. We've exposed the SWD pins for more advanced users who prefer to use the power and speed of professional tools. A USB-A connector is provided for Processor Boards that have USB Host support. A backup battery is provided for processor boards with RTC. If you need a "lot" of GPIO with a simple-to-program， ready for market module， the ATP is the fix you need. We've even added a convenient jumper to measure the current consumption for low power testing.。MicroMod is a modular interface ecosystem that connects a microcontroller "processor board" to various "carrier board" peripherals. Utilizing the M.2 standard， the MicroMod standard is designed to easily swap out processors on the fly. Pair a specialized carrier board for the project you need with your choice of compatible processor!。Get Started with the MicroMod ATP Carrier Board Guide。Features。M.2 Connector。Operating Voltage Range。～3.3V to 6.0V(via VIN to AP7361C 3.3V Voltage Regulator)。3.3V(via 3V3)。Ports [1]。1x USB type C。1x USB type A Host。2x Qwiic Enabled I2C。1x CAN。1x I2S。2x SPI。2x UARTs。2x Dedicated Analog Pins。2x Dedicated PWM Pins。2x Dedicated Digital Pins。12x General Purpose Input Output Pins。1x SWD 2x5 header。1mAh battery backup for RTC。Buttons。Reset。Boot。LEDs。Power。3.3V。Phillips #0 M2.5x3mm screw included。[1] Note：Depending on the design of the Processor Board， not all the pins may be accessible.

。Description。The SparkFun Continuous Rotation(CR)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 CR Servo Trigger is able to tell an attached servo motor to move from position A to position B. To use the CR 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 servo in your projects without having to do any programming!。When we introduced the original Servo Trigger， we mentioned that it could be reprogrammed to be more useful with continuous rotation servo motors. But reprogramming the firmware is somewhat tedious， and users asked for a Servo Trigger preprogrammed with the continuous rotation logic. With this little board you will be provided an easy way to deploy continuous rotation servos into your projects!。The heart of the CR Servo Trigger is an Atmel ATtiny84 microcontroller， running a small program that implements the servo control features designed for continuous rotation servos. On board each of these CR Servo Triggers you will find three potentiometers："A" sets the position the servo sits in while the switch is open， "B" sets the position the servo moves to when the switch is closed， and "T" sets the time it takes to get from A to B and back.。Compared with a servo motor， the CR Servo Trigger board draws very little current， roughly 5mA at 5V. Be sure to note that if you're using the CR Servo Trigger to control your motor， the absolute maximum supply voltage that should be applied is 5.5 VDC. Additionally， the SparkFun CR Servo Trigger is designed to make it easy to daisy chain boards - you can simply connect the VCC and GND pads on adjacent boards to each other.。Note：This idea originally came from our friend in the Oakland area， CTP. If you see him， please give him a high-five for us.。SparkFun CR Servo Trigger Hookup Guide。Features。Recommended Voltage：5VDC。Max Voltage：5.5VDC。Current Draw：5mA。Control Continuous Rotation Servos。Three Control Settings。A - sets the position the servo sits in while the switch is open。B - sets the position the servo moves to when the switch is closed。C - sets the time it takes to get from A to B and back。Easy Control with Potentiometers。Configurable Input Polarity。Configurable Response Mode。Compatible with Analog Servos。ISP Header Pins Available for Reprogram

Description。The SparkFun TFT LCD Breakout is a versatile， colorful， and easy way to experiment with graphics or create a user interface for your project. With a 4-wire SPI interface and microSD card holder， you can use this breakout to easily add visual display/interface capabilities to a project as well as providing all the storage you might need for multimedia files.。To get started with this breakout， you will need an Arduino compatible microcontroller of your choice - we recommend something with extra RAM like the SparkFun Thing Plus. The breakout can be powered with either 5V or 3.3V. The microSD card holder is connected to the same SPI bus as the display which keeps the required pin count low and exists to relieve the burden from your microcontroller's poor memory due to having to store hundreds of images of cats， or really whatever you want to keep there. We have also gone ahead and tricked out the SparkFun HyperDisplay library with a driver made especially for this breakout!。Out of the box， the SparkFun TFT LCD Breakout will come with a large backing PCB that makes it easy to securely mount the display in a project. If you need a more flexible solution you can remove the display module， snap off half the backing board， and then re-insert the display module. When this is done you'll be left with the bare minimum frame around the display to more seamLessly integrate with your project.。Get Started With the SparkFun TFT LCD Breakout Guide。Features。128×160 RGB pixels。Up to 18 bit configurable color depth。2x PWM controllabele LED backlight。microSD Card Slot。V-Score for Minimal Footprint Setup

Description。The SparkFun micro：climate kit is a full weather station kit that is built on top of the weather：bit carrier board. Unlike previous weather kits we've carried， this micro：climate kit is Qwiic enabled and includes our tried-and-true Weather Meters and Soil Moisture Sensor， so whether you're an agriculturalist， a professional meteorologist or a hobbyist， you will be able to build a high-grade weather station powered by the micro：bit. You can even talk via wireless communication between two micro：bits with this kit to be able to monitor the weather without being exposed to it!。Inside each micro：climate kit you will find all the components required to build your micro：bit into a go-to weather sensor； the only parts not included are two AAA batteries， microSD card， and the micro：bit itself. Simply add your own micro：bit to the provided weather：bit， assemble the kit， and you will be ready to start sensing. The SparkFun micro：climate kit is a great way to get your feet wet in high-grade sensors --- just not literally； that's the weather：bit's job!。The kit does not require any soldering and is recommended for anyone curious about weather-sensing technology or the micro：bit platform.。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!。Note：The SparkFun micro：climate kit does。NOT。include a micro：bit board. The micro：bit board will need to be purchased separately. You will also need a microSD card when logging data and AAA batteries to power remotely.。Get started with the micro：climate kit Guide

。Description。The SparkFun Load Cell Amplifier is a small breakout board for the HX711 IC that allows you to easily read load cells to measure weight. By connecting the amplifier to your microcontroller you will be able to read the changes in the resistance of the load cell， and with some calibration you'll be able to get very accurate weight measurements. This can be handy for creating your own industrial scale， process control or simple presence detection.。This version of the SparkFun Load Cell Amplifier features a few changes that you specifically asked for! We have separated the analog and digital supply， as well as added a 3.3uH inductor and a 0.1uF filter capacitor for digital supply. Need even more? Checkout the SparkFun Qwiic Scale. It has all the features of the HX711 but with additional library support， a true I2C interface， and no soldering required!。The HX711 uses a two-wire interface(Clock and Data)for communication. Any microcontroller's GPIO pins should work， and numerous libraries have been written， making it easy to read data from the HX711. Check the hookup guide below for more information.。Load cells use a four-wire Wheatstone bridge configuration to connect to the HX711. These are commonly colored RED， BLK， WHT， GRN and YLW. Each color corresponds to the conventional color coding of load cells：Red(Excitation+ or VCC)。Black(Excitation- or GND)。White(Amplifier-， Signal- or Output-)。Green(A+， S+ or O+)。Yellow(Shield)。The YLW pin acts as an optional input that is not hooked up to the strain gauge but is utilized to ground and shield against outside EMI(electromagnetic interference). Please keep in mind that some load cells might have slight variations in color coding.。Note：Special thanks to Bodge for supplying the Library for the HX711!。Get Started with the HX711 Load Cell Amplifier Guide。Features。Operation Voltage：2.7V--5V。Operation Current：< 1.5mA。Selectable 10SPS or 80SPS output data rate。Simultaneous 50 and 60Hz supply rejection

Description。Introducing the SparkFun FT231X Breakout board， complete with the full UART hardware handshake feature! The pin-out of this board matches the FTDI cable to work with official Arduino and cloned Arduino boards. It can also be used for general serial applications.。This board still brings out the DTR pin as opposed to the RTS pin of the FTDI cable. The DTR pin allows an Arduino target to auto-reset when a new Sketch is downloaded. This is a really nice feature to have and allows a sketch to be downloaded without having to hit the reset button. This board will auto-reset any Arduino board that has the reset pin brought out to a 6-pin connector.。The coolest thing about the FT231X Breakout is that we have broken out ALL the pins for your use， making this board all the more hackable! It also uses a common microUSB jack.。One of the features of this board is a jumper on the back， which allows the VCC output to be configured to either 3.3V or 5V. This board ships default to 5V， but you can cut the default trace and add a solder jumper if you need to switch to 3.3V. It should be noted that the max input of the FT231X is only 3.3V， but it can operate down to 1.8V with external pull-ups and is also 5V tolerant.

。Description。This is SparkFun Beefy 3 FTDI Basic Breakout for the FTDI FT231X USB to serial IC. The pinout of this board matches the FTDI cable to work with official Arduino and cloned 3.3V Arduino boards. It can also be used for general serial applications. Built upon the same foundation as our 3.3V SparkFun FTDI Basic Breakout， the Beefy 3 is equipped with an AP2112K voltage regulator making this FTDI basic breakout board capable of handling a current load of up to 600 mA! With the addition of a more "Beefy" voltage regulator your will now be able to power a 3.3V project directly from the FTDI. The pinout of this board matches the FTDI cable to work with official Arduino and cloned 3.3V Arduino boards.。This board brings out the DTR pin as opposed to the RTS pin of the FTDI cable. The DTR pin allows an Arduino target to auto-reset when a new Sketch is downloaded. This is a really nice feature to have and allows a sketch to be downloaded without having to hit the reset button. This board will auto reset any Arduino board that has the reset pin brought out to a 6-pin connector. The pins labeled BLK and GRN correspond to the colored wires on the FTDI cable. The black wire on the FTDI cable is GND， green is DTR. Use these BLK and GRN pins to align the FTDI basic board with your Arduino target.。There are pros and cons to the FTDI Cable vs the FTDI Basic. This board has TX and RX LEDs that allow you to actually see serial traffic on the LEDs to verify if the board is working， however this board now requires a Micro-B USB cable. The FTDI Cable is well protected against the elements， but is large and cannot be embedded into a project as easily. The FTDI Basic uses DTR to cause a hardware reset where the FTDI cable uses the RTS signal.。This board was designed to decrease the cost of Arduino development and increase ease of use(the auto-reset feature rocks!). Our Arduino Pro and LilyPad boards use this type of connector.

。Description。The SparkFun Qwiic TMP117 breakout is a high precision temperature sensor equipped with an I2C interface. It outputs temperature readings with high precision of ±0.1℃ across the temperature range of -20℃ to +50℃s with no calibration and a maximum range from -55℃ to 150℃. The SparkFun High Precision Temperature Sensor also has a very low power consumption rate which minimizes the impact of self-heating on measurement accuracy. 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.。The SparkFun High Precision Temperature Sensor also includes programmable temperature limits， and digital offset for system correction. While the TMP102 is capable of reading temperatures to a resolution of 0.0625℃ and is accurate up to 0.5℃， the on-board TMP117 is not only more precise but has a 16-bit resolution of 0.0078℃!。To make this breakout even easier to use， we've written an Arduino library to help you get started "Qwiic-ly." Check the Documents tab above for more information.。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.。The TMP117 High Precision Temperature Sensor can also be automatically detected， scanned， configured， and logged using the OpenLog Artemis datalogger system. No programming， soldering， or setup required!。Need a custom board? This component can be found in SparkFun's A La Carte board builder. You can have a custom design fabricated with this component - and your choice of hundreds of other sensors， actuators and wireless devices - delivered to you in just a few weeks.。Get Started with the SparkFun High Precision TMP117 Hookup Guide。Features。Uses I2C interface(Qwiic-enabled)。Four selectable addresses。0x48(default)， 0x49， 0x4A， 0x4B。16-bit resolution， 0.0078℃。High accuracy， digital temperature sensor。±0.1℃(max)from ?20℃ to 50℃。±0.15℃(max)from ?40℃ to 70℃。±0.2℃(max)from ?40℃ to 100℃。±0.25℃(max)from ?55℃ to 125℃。±0.3℃(max)from ?55℃ to 150℃。Operating temperature range。-55℃ to +150℃。Operating voltage range。1.8V to 5.5V。Typically 3.3V if using the Qwiic cable。Low power consumption。3.5μA(1-Hz conversion cycle)。150nA(shutdown current)。Programmable operating modes。Continuous， one-shot， and shutdown。Programmable temperature alert limits。Selectable averaging for reduced noise。Digital offset for system correction。NIST traceability。。Documents。Schematic。Eagle Files。Board Dimensions。Hookup Guide。Datasheet(TMP117)。Arduino Library。GitHub Hardware Repo

Description。The SparkFun 3.3V FTDI Starter Kit gives you just what you need to get started with FTDI FT232RL USB to serial IC. The pinout of the included board matches the FTDI cable standard to work with official Arduino and cloned 3.3V Arduino boards. It can also be used for general serial applications. The major difference with this board is that it brings out the DTR pin as opposed to the RTS pin of the FTDI cable. The DTR pin allows an Arduino target to auto-reset when a new Sketch is downloaded. This is a really nice feature to have and allows a sketch to be downloaded without having to hit the reset button. This board will auto reset any Arduino board that has the reset pin brought out to a 6-pin connector.。The SparkFun FTDI Basic Breakout was designed to decrease the cost of Arduino development and increase ease of use(the auto-reset feature rocks!). Our Arduino Pro and LilyPad boards use this type of connector.。The included cable is a USB 2.0 type B to Mini-B 5-pin black cable.

Description。The new PureThermal Mini Pro JST-SR with Thermal by FLIR is a hackable thermal camera for the FLIR Lepton thermal imaging camera core. Just like its PureThermal 2 predecessor， it ships pre-configured to operate as a plug-and-play UVC 1.0 USB thermal webcam that will work with standard webcam and video apps on all major platforms using a JST-SR to USB Cable， or your own custom cable. For developers， its reference firmware and viewer software are open source.。It has multiple connection options such as solder straight to the board or a custom cable using the JST-SR port. The PTMini Pro also features four mounting holes， less complex circuitry， and perhaps best of all， USB DFU. This is a development kit ready to be embedded into a production system.。Each board comes with a FLIR Lepton 3.5.。The FLIR Lepton(R)is a radiometric-capable LWIR camera solution that is smaller than a dime， fits inside a smartphone， and is one tenth the cost of traditional IR cameras. Using focal plane arrays of either 160x120 or 80x60 active pixels， Lepton easily integrates into native mobile-devices and other electronics as an IR sensor or thermal imager. The radiometric Lepton captures accurate， calibrated， and noncontact temperature data in every pixel of each image.。Features。PureThermal：Compatible with all production FLIR Leptons， including radiometric 2.5 and 3.5 cores。9 Hz color video over usb using the USB UVC class。STM32F412 ARM microprocessor - execute on-board image processing without need for an external system。Open source reference firmware：GroupGets PureThermal Github。Works with GetThermal - our custom open source thermal video display software for macOS and Linux with radiometric support。DFU over USB using a JST-SR port to USB cable， or a modified USB cable and the through holes.。Four mounting holes。Compact form-factor ready to be embedded into production systems。FLIR Lepton 3.5：Thermal sensitivity：< 50 mK(0.050℃)。Spectral Range：8 - 14 microns(nominal)Long Wave Infrared(LWIR)。Resolution：160h×120v pixels。Radiometric Accuracy - High Gain Mode：Greater of +/- 5℃ or 5%(typical)； Low Gain Mode：Greater of +/- 10℃ or 10%(typical)。Scene Dynamic Range - High Gain Mode：-10° to +140℃； Low Gain Mode：-10° to +400℃(at room temperature)， -10° to +450℃(typical)。Pixel Size：12 micrometers。Frame Rate：8.7 Hz(effective)。Output Format：User-selectable 14-bit， 8-bit(AGC applied)， or 24-bit RGB(AGC and colorization applied)。Horizontal Field of View(HFOV)：57°。Lens Type：f/1.1。Size(w×l×h)：10.50×12.70×7.14 mm。Weight：0.9 grams。Power Consumption：150 mW typical， 650 mW during shutter event， 5mW standby。Optimum Operating Temperature Range：-10℃ to + 80℃

Description。The MCP9600 Breakout is a high accuracy Thermocouple Amplifier equipped with an I2C interface， accessed over our Qwiic system. Inside the chip are two temperature sensors， one for the thermocouple itself(the hot junction)and one for the chip itself(the cold junction). As a result， the MCP9600 can read both the ambient temperature and the temperature of whatever you're trying to measure! The MCP9600 can do both with a resolution of 0.0625℃， and an accuracy of ±1.5℃(worst-case). The MCP9600 Thermocouple Amplifier is one of our many Qwiic compatible boards! Simply plug and go. No soldering， no figuring out which is SDA or SCL， and no voltage regulation or translation required!。This version of the board comes equipped with screw terminals to allow for your own Thermocouple's wiring to be hooked up with the turn of a screw. This makes it perfect for a variety of applications， from measuring the temperature of your Crock-Pot to making sure your backyard induction furnace is up to temperature.。In addition， the MCP9600 has four on-board temperature alerts that you can configure! Instead of constantly polling the sensor over I2C， you can set a temperature limit to trigger an interrupt when the temperature reaches a certain value. This frees up your microcontroller and your I2C bus to do more important things. It's also possible to put the MCP9600 into alternate operation modes in order to save power. The sensor supports a burst mode， where it will take a specified number of samples， return the results， and then go to sleep. This low-power mode makes the MCP9600 perfect for portable applications!。We've written an Arduino library to help you get started quickly. You can download the library through the Arduino library manager by searching 'SparkFun MCP9600' or you can get the GitHub repo as a .zip file and install the library from there.。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 Qwiic Thermocouple Amplifier。Features。Temperature Range of -200℃ to 1350℃。Four Onboard Temperature Alerts。Resolution of 0.0625℃。Screw Terminal Connector。ADDR Jumper for variable I2C Addresses(default address of 0x60)。2x Qwiic Connectors

Description。This 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.。Features。200 mm length。1.25 mm diameter。U.FL connectors on both ends(cable side， to mate with SMD board connector)

。Description。Need to keep track of the airflow in your data center or around your servers? How about making sure your HVAC and air control systems are functioning at full capacity? Well， the new SparkFun FS3000-1005 Air Velocity Sensor Breakout can help you with all that and more! It's super easy and super quick(Qwiic!)to hook up.。This breakout board is focused around Renesas' FS3000-1005， a surface-mount air velocity module with a range of 0-7.2m/s(0-16.2mph). It utilizes a MEMS thermopile-based sensor， features a digital output with 12-bit resolution and comprises a "solid" thermal isolation technology and silicon carbide coating to protect it from abrasive wear and water condensation.。We've written an Arduino library to help you get started quickly. You can download the library through the Arduino library manager by searching 'SparkFun Air Velocity' or you can get the GitHub repo as a .zip file and install the library from there.。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 Qwiic Air Velocity Sensor Breakout。Features。I2C address：0x28。Air flow speed：0 - 7.23 m/sec(0 - 16.17mph)。Accuracy：5 % of full scale flow range。12-bit resolution。Input Voltage：2.7-3.3V。Average current draw：10mA

Description。Cherry 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. With the SparkFun Cherry MX Switch Breakout we have made the switches more easily adaptable to breadboard or perfboard-based projects. The Cherry MX Switch Breakout is a perfect prototyping tool for projects ranging from a single-key user-input to fully-custom 101-key keyboards.。In addition to breaking out the switch contacts to breadboard-compatible headers， the Cherry MX Switch Breakout also provides access to an optional switch-mounted LED. Plus， the pin break-outs are designed with keyboard matrix-ing in mind， so you can interconnect as many boards as you'd like into a row-column configuration， keeping the I/O-pin requirements as low as possible.。Note：If you are looking for a Cherry MX Switch to use with this breakout， we've got you covered! CLICK HERE!。Get Started with the Cherry MX Switch Guide。Features。Support for 3mm LED。Footprint for LED current-limiting resistor。Footprint for switch-isolating diode。Chain-able in row/column matrices。Designed to match standard key spacing and keyboard row offsets