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DescriptionThis is the PICkit 4， the official programmer from Microchip. The PICkit 4 allows debugging and programming of PIC(R)， dsPIC(R)， AVR， SAM and CEC flash microcontrollers and MPUs using the powerful graphical user interface of the MPLAB X Integrated Development Environment(IDE). The MPLAB PICkit 4 is connected to a PC using a high-speed 2.0 USB interface and can be connected to the target via an 8-pin Single In-Line(SIL)connector. The connector uses two device I/O pins and the reset line to implement in-circuit debugging and In-Circuit Serial Programming(TM)(ICSP(TM)). An additional micro SD card slot and the ability to be self-powered from the target means you can take your code with you and program on the go. Comes with a USB to micro-B USB cable.FeaturesPowered by a high-speed USB 2.0， no external power requiredReal-time executionMPLAB X IDE compatible(free copy included)Built-in over-voltage/short circuit monitorFirmware upgradeable from PC/web downloadFully enclosedTarget voltage of 1.20V to 5.5VCan supply up to 50mA of power to the targetMinimal current consumption at <100μA from targetDiagnostic LEDs(power， busy， error)Read/write program and data memory of microcontrollerErase of program memory space with verificationFreeze-peripherals at breakpoint8-pin single in-line header supports advanced interfaces such as 4-wire JTAG and Serial Wire Debug with streaming Data GatewayBackward compatible for demo boards， headers and target systems using 2-wire JTAG and ICSP

DescriptionPlease note， these machines are built to order have an estimated lead time of 4 business days before shippingThis is the Shapeoko 4 XXL， nearly double the cutting area of the Shapeoko 4 Standard! The Shapeoko is a 3-axis CNC Machine k

DescriptionPlease note， these machines are built to order have an estimated lead time of 4 business days before shippingThis is the Shapeoko 4 XL， nearly double the cutting area of the Shapeoko 4 Standard! The Shapeoko is a 3-axis CNC Machine kit that allows you to create your 2D and 3D designs out of non-ferrous metals， hardwoods， and plastics. The Shapeoko 4 XL is designed to be affordable enough for any shop and powerful enough to do real work. Don't let the size intimidate you! This is an entry-level CNC machine designed for hobbyists， artists， and fabricators!Each Shapeoko 4 XL has a cutting area of 838.2mm(X)x 444.5 mm(Y)x 101.6mm(Z)(33"×17.5"×4")and an overall footprint of 1270mm(X)x 609.6mm(Y)x 482.6mm(Z)(50"×24"×19"). The power cable included in this kit is designed for the United States National Plug Standard. Don't forget you can put whatever you want on the adapter ring(as long as it fits)， whether that's a laser， 3D print extrusion head， or a marker. Get creative!Upgrades from the Shapeoko 3 include：New， more rigid v-wheel design15mm beltsInductive homing switchesNew electronicsIntegrated t-slot Hybrid Table(OPTIONAL)Fully-supported Y extrusionsLeadscrew-driven Z-axisNew， more rigid 65mm router mountSweepy 65mm V2 dust bootNote：This item is non-returnable. If this item arrives damaged or is not functioning properly， please do not hesitate to contact us to see if further actions may be taken.Not Compatible with the Shapeoko 4：Expansion PacksT-Track Clamp KitsZ-PlusProximity Switch KitMaintenance KitShapeoko 3 Bit SetterHDZ 4.0FeaturesFootprint：1270mm×609.6mm×482.6mm(50"×24"×19")Cutting Area：838.2mm×444.5mm×101.6mm(33"×17.5"×4")Weight 137lbs.Operating System：Mac(OSX 10.14 or higher)or PC(Windows 8.1 or 10， Intel or AMD)

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

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

DescriptionThese nylon standoffs are 3/8" long and tapped for a 4-40 screw. These are great for mounting your board in an enclosure， or just getting it up off the table. The black nylon will give your project a very sessy look.Sold in packs of 10

DescriptionThe SparkFun Inventor's Kit(SIK)for micro：bit v2 is a great way to get creative， connected and coding with the micro：bit. The SIK for micro：bit v2 provides not only the micro：bit v2 board but everything you need to hook up and experiment with multiple electronic circuits! With the SIK for micro：bit v2 you will be able to complete circuits that will teach you how to read sensors， move motors， build Bluetooth(R)devices and more.The SparkFun Inventor's Kit for micro：bit is the latest and greatest in single-board computer kits. Surrounding the micro：bit v2 SIK is one core philosophy --- that anyone can(and should)experiment with cutting-edge electronics in a fun and playful way without breaking the bank.The kit does not require any soldering and is recommended for all users， from beginners to engineers. We have provided a complete Experiment Guide in the Documents tab for you to check out now! If you have ever been interested in learning about electronics， or if you have used the original SparkFun Inventor's Kit and are looking for something new， the SIK for micro：bit is the perfect kit for you!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!ExamplesCircuit 0：Hello， micro：bit!Circuit 1：Blinking an LEDCircuit 2：Reading a PotentiometerCircuit 3：Reading a PhotoresistorCircuit 4：Driving an RGB LEDCircuit 5：Reading an SPDT SwitchCircuit 6：Reading a Button PressCircuit 7：Reading the Temperature SensorCircuit 8：Using a Servo MotorCircuit 9：Using a BuzzerCircuit 10：Using the AccelerometerCircuit 11：Using the Compass

DescriptionThis is the Teensy 4 Audio Shield(Rev D)that can be added to a Teensy 4.0 for your next audio project. The shield provides you with an easy-to-use tool to add high quality 16 bit， 44.1 kHz sample rate audio to your Teensy. With the audio li

DescriptionThe LIDAR-Lite v4 LED sensor is the next step in the LIDAR-Lite line. A small， lightweight， low-power optical ranging sensor. It's the first to incorporate ANT profile wireless networking technology into an optical sensor. Its built-in nRF52840 processor means that developers can create custom applications， or be operated as a stand-alone device right out of the box by using the preloaded stock application.Like the LIDAR-Lite v3 and LIDAR-Lite v3HP sensors； it can also be directly connected to an external micro-controller running a custom user application. As such， it provides a highly adaptable option for OEM and maker applications in robotics， Internet of Things， and unmanned vehicles ― or any application where an ultrasonic sensor might otherwise be used. It's perfect as the basic building block for applications where wireless capabilities， small size， light weight， low power consumption and high performance are important factors in a short-range， 10-meter， optical distance measuring sensor.The LIDAR-Lite v4 requires an external 5VDC power source and soldering is required. This Time-of-Flight ranging module uses a LED and optics for ranging. It does not use a laser； therefore， it is inherently eye-safe under normal usage.FeaturesResolution：1 cmMeasurement repeatability：As measured indoors to a 90% reflective target1 cm is equivalent to 1 standard deviationUsing "high accuracy" mode， with averaging：+/- 1 cm to 2 meters+/- 2 cm to 4 meters+/- 5 cm to 10 metersRange：5 cm to 10 meters(as measured from back of unit)Update rate：I2C = >200 Hz typicalANT(R)= up to 200 Hz to a 90% target indoors at 2m in normal operating modeInterface：I2C or ANT； user configurable for SPI using the Nordic SDKPower(operating voltage)：4.75 - 5.25 VDCCurrent consumption：2mA idle， 85mA during acquisitionOperating temperature：-20 to 60° CLED wavelength：940 nmBeam divergence：4.77°Optical aperture：14.9 mmUnit size(HxWxD)：2.1"×0.8"×0.9"(52.2×21.2×24.0 mm)Weight：14.6 g(0.5 oz)

DescriptionThe SparkFun SerLCD is an AVR-based， serial enabled LCD that provides a simple and cost effective solution for adding a 20x4 Black on RGB Liquid Crystal Display into your project. We've seriously overhauled the PCB design on the back of th

DescriptionThis is an inexpensive 3-foot-long HDMI to Micro HDMI cable that you can use to hook up your Raspberry Pi 4 to a suitable monitor or TV. Heck， you can hook up anything you want with it! Micro HDMI is less common of a medium right now even m

DescriptionThis S-Type load cell(sometimes called a strain gauge)can translate up to 200kg of pressure(force)into an electrical signal. Each load cell is able to measure the electrical resistance that changes in response and proportion to the strain(e.g.， pressure or force)applied to the form. 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 alloy steel and is capable of reading a capacity up to 200kg. 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 GuideFeatures51mm×19mm×76mm， 3m Wire

DescriptionWith a 32-bit ARM Cortex-M4F MCU， the SparkFun MicroMod SAMD51 Processor Board is one powerful microcontroller packaged on a small board! The board provides you with an economical and easy to use development platform if you're needing mor

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

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

DescriptionThe Teensy is an amazing and compact development platform in breadboard friendly form factor， but what if you could incorporate it into the Arduino architecture? The Teensy Arduino Shield Adapter allows you to attach your Teensy and utilize your favorite Arduino shields without the requirement of breadboard or any complicated wiring. Needless to say， the Teensy Arduino Shield Adapter is useful tool for upgrading all of your existing Arduino projects to more powerful controller!As we stated before， the Teensy Arduino Shield Adapter provides basic Arduino compatibility with your run-of-the-mill shield but there are few other fun features that we've added on， as well. These features include Real Time Clock(RTC)battery， JST battery connector， 4-12V barrel jack connector， an ICSP header， and more. Because this board is simply an adapter， there is no special programming required to start working with the adapter. You will， however， need to program the Teensy for any Arduino shield you'd like to work with.While the adapter design can fit the Teensy LC footprint， it has been designed to fully utilize the features of the Teensy 3.1. Not all of the features available on the adapter are compatible with the LC so please be sure to check the Hookup Guide in theDocumentssection below to ensure functionality for your project. Please keep in mind that this adapter may be incompatible with some 5V Arduino shields. Please check our hookup guide for more information.Note：The Teensy Arduino Shield Adapter comes as kit and will need to be soldered together.Note：Due to the requirements of shipping the batteries in this kit， orders may take longer to process and therefore do not qualify for same-day shipping. Additionally， these batteries can not be shipped via Ground or Economy methods to Alaska or Hawaii. Sorry for any inconvenience this may cause.FeaturesArduino R3 InterfaceReal Time Clock BatteryJST Battery ConnectorBarrel JackI2C JumpersICSP HeaderDAC Pin Header

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

DescriptionAn adjustable potentiometer can open up many interesting user interfaces. With this rotary potentiometer just turn the dial and the resistance changes. This potentiometer from Bourns has a 1/4" metal knurled shaft diameter， solder lug terminals， no detents， and has a 100K linear taper.Connect VCC to an outer pin， GND to the other， and the center pin will have a voltage that varies from 0 to VCC depending on the rotation of the pot. Hook the center pin to an ADC on a microcontroller and get a variable input from the user!

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

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.

DescriptionThe great thing about open source is that while SparkFun has designed our own MicroMod carrier boards， that does not stop you from creating your very own MicroMod carrier board. The MicroMod DIY Carrier Kit includes five M.2 connectors(4.2mm height)， screws， and standoffs so that you can get all the special parts you may need to make your own carrier board.MicroMod uses the common M.2 connector. This is the same connector found on modern motherboards and laptops. There are various locations for the plastic 'key' on the M.2 connector to prevent a user from inserting an incompatible device. The MicroMod standard uses the 'E' key and further modifies the M.2 standard by moving the mounting screw 4mm to the side. The 'E' key is fairly common so a user could insert a M.2 compatible Wifi module but because the screw mount doesn't align， the user would not be able to secure an incompatible device into a MicroMod carrier board.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!

DescriptionThe SparkFun Thing Plus - RP2040 is a low-cost， high performance board with flexible digital interfaces featuring the Raspberry Pi Foundation's RP2040 microcontroller. Besides the Thing Plus orFeatherfootprint(with 18 GPIO pins)， the board also includes an SD card slot， 16MB(128Mbit)flash memory， a JST single cell battery connector(with a charging circuit and fuel gauge sensor)， an addressable WS2812 RGB LED， JTAG PTH pins， four(4-40 screw)mounting holes， and our signature Qwiic connector.The RP2040 contains two ARM Cortex-M0+ processors(up to 133MHz)and features：264kB of embedded SRAM in six banks6 dedicated IO for SPI Flash(supporting XIP)30 multifunction GPIO：Dedicated hardware for commonly used peripheralsProgrammable IO for extended peripheral supportFour 12-bit ADC channels with internal temperature sensor(up to 0.5 MSa/s)USB 1.1 Host/Device functionalityThe RP2040 is supported with both C/C++ and MicroPython cross-platform development environments， including easy access to runtime debugging. It has UF2 boot and floating-point routines baked into the chip. While the chip has a large amount of internal RAM， the board includes an additional 16MB of external QSPI flash memory to store program code.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 Thing Plus RP2040 Hookup GuideFeaturesSparkFun Thing Plus - RP2040 FeaturesRaspberry Pi Foundation's RP2040 microcontroller16MB QSPI Flash MemoryJTAG PTH PinsThing Plus(or Feather)Form-Factor：18[1]x Multifunctional GPIO Pins[2]Four available 12-bit ADC channels with internal temperature sensor(500kSa/s)Up to eight 2-channel PWMUp to two UARTsUp to two I2C busesUp to two SPI busesUSB-C Connector：USB 1.1 Host/Device functionality2-pin JST Connector for a LiPo Battery(not included)500mA charging circuitQwiic ConnectorButtons：BootResetLEDs：PWR- Red 3.3V power indicatorCHG- Yellow battery charging indicator25- Blue status/test LED(GPIO 25)WS2812- Addressable RGB LED(GPIO 08)Four Mounting Holes：4-40 screw compatibleDimensions：2.3"×0.9"RP2040 General FeaturesDual Cortex M0+ processors， up to 133 MHz264 kB of embedded SRAM in 6 banks6 dedicated IO for QSPI flash， supporting execute in place(XIP)30 programmable IO for extended peripheral supportSWD interfaceTimer with 4 alarmsReal time counter(RTC)USB 1.1 Host/Device functionalitySupported programming languagesMicroPythonC/C++1.Note：GPIO 08is not included in this count， as it passes through the WS2812 addressable RGB LED first.GPIO 07andGPIO 23are counted as a single GPIO because they are tied together.2.Note：The GPIO pins are programmable so you can reconfigure the pins! Check out the RP2040 datasheet for more information on the GPIO functionality.

DescriptionThe LilyPad ProtoSnap Plus is a sewable electronics prototyping board that you can use to explore circuits and programming， then break apart to make an interactive fabric or wearable project. Programming the ProtoSnap Plus is easy with the free Arduino software you'll need to program the ATmega32U4 on LilyPad USB Plus at the heart of the board. Once you've installed the software， you'll be able to write and upload your own programs to the board， making it do almost anything you want.At the center of the ProtoSnap Plus is the LilyPad USB Plus microcontroller， pre-wired to a LilyPad board including a LilyPad Light Sensor， LilyPad Buzzer， LilyPad Button Board， four pairs of colored LilyPad LEDs and a LilyPad Slide Switch. Because these components are connected together on the ProtoSnap board， you can test out your project ideas before you sew. The ProtoSnap Plus also includes expansion ports that let you sew your wearables together or use alligator cables to easily connect external sensors and components. After testing out your coding ideas using the attached LilyPad pieces， you can break apart the prototyping board and sew them into your project!Please be aware that the Lilypad ProtoSnap Plus isNOT supported on Windows 7/8due to a lack of support drivers for those specific OS's.Note：A portion of this sale is given back to Dr. Leah Buechley for continued development and education in e-textiles.Get Started with the LilyPad ProtoSnap Plus Guide

DescriptionThe 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 GuideFeaturesSupply 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 OutputsNo MCLK RequiredClick and Pop ReductionShort-Circuit and Thermal Protection.

DescriptionThe SparkFun Line Follower Array is a long board consisting of eight IR sensors that have been configured to read as digital bits! We have designed the SparkFun Line Follower Arrays to follow a dark line of about 3/4 inch width or smaller(spray paint or electrical tape)on a light background. Each array features visible LEDs that point upward when the board is attached(properly)so you can see what the robot sees， brightness control right on the board， and an I2C interface for reading and power control. Here at SparkFun， the RedBot Shadow Chassis was used as a test platform but really this was designed as an add-on for almost any bot.The line follower functions by taking an 8-bit reading of reflectance for use with following lines or reading dark/light patterns and can see from about 1/4 to 3/4 inches away. The IR brightness control and indicator can be adjusted with the on-board potentiometer and is capable of showing you the strength of the IR LEDs. Illumination can be turned on and off with software to conserve power， or left on all the time for faster readings. The SparkFun Line Follower Array requires 5V of power with a supply current range of 25-185mA with strobing disabled and 16-160mA with it enabled. Additionally we have added six mounting holes to the line follower with the two inner holes designed to fit our Shadow Chassis while the other four are general purpose.Note：As you know our Sun emits quite a bit of infrared light， making the SparkFun Line Follower Array much less effective in direct sunlight. Plan your projects accordingly!Features8 sensor eyes(QRE1113， like in our line sensor breakout)I2C interfaceAdjust IR brightness on the fly with a knobSwitch IR on and off with softwareSwitch visual indicators on and off with softwareInvert dark/light sight with softwareBased on the SX1509 I/O expander

DescriptionA lot of the time you just need to add more analog inputs to solve a problem. It happens. The SparkFun Qwiic 12 Bit ADC can provide four channels of I2C controlled ADC input to your Qwiic enabled project. These channels can be used as single-ended inputs， or in pairs for differential inputs. What makes this even more powerful is that it has a programmable gain amplifier that lets you "zoom in" on a very small change in analog voltage(but will still effect your input range and resolution). 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 ADS1015 uses its own internal voltage reference for measurements， but a ground and 3.3V reference are also available on the pin outs for users. This ADC board includes screw pin terminals on the four channels of input， allowing for solderless connection to voltage sources in your setup. It also has an address jumper that lets you choose one of four unique addresses(0x48， 0x49， 0x4A， 0x4B). With this， you can connect up to four of these on the same I2C bus and have sixteen channels of ADC. The maximum resolution of the converter is 12-bits in differential mode and 11-bits for single-ended inputs. Step sizes range from 125μV per count to 3mV per count depending on the full-scale range(FSR)setting.We have included an onboard 10K trimpot connected to channel A3. This is handy for initial setup testing and can be used as a simple variable input to your project. But don't worry， we added an isolation jumper so you can use channel A3 however you'd like.Note：The I2C address of the ADS1015 is 0x48 and is jumper selectable to 0x49， 0x4A， 0x4B. A multiplexer/Mux is required to communicate to multiple ADS1015 sensors on a single bus. If you need to use more than one ADS1015 sensor consider using the Qwiic Mux Breakout.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 12-Bit ADC Hookup GuideFeaturesADS1015Operating Voltage(VDD)：2.0V-5.5V(Note：When powering with a Qwiic cable， the input range is only 3.3v)Operating Temperature：-40℃ to 125℃Operation Modes：Single-Shot， Continuous-Conversion(Default)， and Duty CyclingAnalog Inputs：Measurement Type：Single-Ended(Default)Input Voltage Range：GND to VDDFull Scale Range(FSR)：±.256V to ±6.114V(Default：2.048V)Resolution：12-bit(Differential)or 11-bit(Single-Ended)LSB size：0.125mV - 3mV(Default：1 mV)Sample Rate：128 Hz to 3.3 kHz(Default：1600SPS)Current Consumption(Typical)：150μA-200μAI2C Address：0x48(Default)， 0x49， 0x4A， or 0x4BScrew pin terminals for solderless connection to voltage sourcesFour unique I2C addresses：0x480x490x4A0x4B2x Qwiic connection portsOnboard 10K trimpot