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Description。The 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 does。NOT。include a Raspberry Pi or Camera Module.

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。Sometimes we want our projects on， but sometimes we want to turn them off for a while to save power. The SparkFun Nano Power Timer will run while only consuming minimal power(approximately 35nA)and turn your project on after a set amount of time. When you are done polling your sensors， posting data to the web， writing to your logger， or planning world domination， your microcontroller can tell the Nano Power Timer to turn off the power. No more running your microcontroller all day when you only want to read the ambient temperature once per hour.。The TPL5110 delay is configured with the use of resistors. We've added a six-way DIP switch to select one of the five preinstalled resistors. The sixth switch is attached to a pad to add your own PTH(or SMD)resistor. The delays associated with the preinstalled headers are shown on the bottom of the board for quick setup. Additionally， you can select more than one switch to combine the resistors in parallel(up to 26 options not including the custom resistor)， check out the hookup guide for a nice chart as to the total resistance and corresponding delay for each combination.。The Nano Power Timer can handle voltages between 1.8V and 5.5V as well as current up to 1.1A with times from 100ms to two hours(preconfigured settings range from 30s to 2h). You will find a button on the board which will allow you a quick override to the delay so you can turn your project on whenever you like.。Get Started with the SparkFun Nano Power Switch。Features。Supply Voltage：1.8V to 5.5V。Current consumption at 2.5V：35nA Typical(50nA Max)。Selectable Time intervals：100ms to 7200s(2 hours)。Timer Accuracy：1%

Description。The SparkFun Qwiic HAT for Raspberry Pi is the quickest and easiest way to enter into SparkFun's Qwiic ecosystem while still using that Raspberry Pi that you've come to know and love. The Qwiic HAT connects the I2C bus(GND， 3.3V， SDA and SCL)on your Raspberry Pi to an array of Qwiic connectors on the HAT. Since the Qwiic system allows for daisy chaining boards with different addresses， you can stack as many sensors as you'd like to create a tower of sensing power!。The Qwiic Pi HAT has four Qwiic connect ports， all on the same I2C bus. In addition， many of the useful GPIO pins on the Raspberry Pi are broken out. This HAT is compatible with any Raspberry Pi that utilizes the standard 2x20 GPIO header. It has been designed to sit to the side of the Pi， allowing it to work conveniently with a Pi Tin enclosure to connect boards to the Qwiic ports.。Note：。There is a small silk error that has reversed the SDA and SCL. This is simply a cosmetic mix-up and will not impact any function with this 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 Pi HAT Guide。Features。4x Qwiic Connection Ports。Select GPIO Pins Broken Out。Pi Tin Compatibility

Description。The 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 Guide。Features。2x Qwiic Connection Ports。Broken-out I2C Pins

Description。The Molex GNSS Flex antenna is a great option for basic GNSS applications and will work with any of our GNSS boards equipped with a U.FL at a fraction of the cost of many of its big brothers. This antenna supports GPS， Galileo， BeiDou， and GLONASS in three different frequency bands(1561 +/-3MHz， 1575 +/-3MHz， 1602 +/-3MHz).。The Molex Flexible GNSS Antenna has an incredibly small footprint at 40.40mm×15.40mm， while the adhesive pad is a bit bigger at 56.40mm×20mm. Even better， the antenna is only 0.1mm thick(or about the thickness of a piece of paper). Simply remove the backing and stick this to any surface， or leave the backing on(just be careful of the fragile U.FL connector).。Features。Cable length：50mm。Connector：U.FL。Radiation Pattern：Omnidirectional。Polarization：Linear。Weight：0.466 g。Mounting Style：Adhesive。Protocol：BeiDou， Galileo， GLONASS， GPS。Return Loss：< -8dB。Peak Gain(Max)：1.1 dBi+。Efficiency：>74%。Input Impedance 50 Ohms

Description。This 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 Guide。Features。80mm×12.7mm×12.7mm， 250mm Wire

Description。The CY7C65213 USB to UART serial breakout is designed to provide users with a means to access all available I/O pins on the IC， and to provide a 6-pin UART header that is compatible with other SparkFun breakout boards. This breakout has a m

Description。Standard frequency crystals - use these crystals to provide a clock input to your microprocessor. Rated at 20pF capacitance and +/- 50ppm stability. Low profile HC49/US Package.

Description。This Digital LED Voltmeter measures the voltage at a particular point of the system it has been hooked up to and then provides a readout on its three 7-segment LEDs. This voltmeter is able to provide a readout of voltages from 2.5VDC to 30

Description。At SparkFun we continually like to innovate， update， and improve even when it comes to our very own development boards. We have multiple versions of the SparkFun RedBoard in our catalog but none of them in an R3 form factor with a Qwiic con

Description。Thermally Conductive Adhesive Transfer Tapes are designed to provide a preferential heat-transfer path between heat-generating components and heat sinks or other cooling devices(e.g.， fans， heat spreaders or heat pipes).。This is a 4x4

Description。These coated flat endmills are perfect for cutting aluminum. They have a ZrN coating which provides a better finish， longer lifespan， and a superior cut compared to a non-coated endmill.。This cutter has a shorter flute length to provide

Description。If you'd like to use a larger tool in your Nomad， this collet and nut will let you use tools with a .25" shank. The extra collet nut included will let you quickly switch between collets without having to remove them from the collet nut.

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

Description。Amphenol FCI FFC/FPC Flexible Circuit Connectors are a broad range of innovative connector solutions to terminate FFC/FPC. This 24-Pin FPC connector has a 0.5mm pitch and comes with a bottom contact in a right angle orientation and a surfac

Description。With 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 cable。only。works 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.。。Features。Length：100mm

。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。Do 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 does。not。include micro：bit， which will need to be purchased separately.。Get started with the micro：bit SIK Experiment Guide。Examples。Circuit 0：Hello， micro：bit!。Circuit 1：Blinking an LED。Circuit 2：Reading Potentiometer。Circuit 3：Reading Photoresistor。Circuit 4：Driving an RGB LED。Circuit 5：Reading an SPDT Switch。Circuit 6：Reading Button Press。Circuit 7：Reading the Temperature Sensor。Circuit 8：Using Servo Motor。Circuit 9：Using Buzzer。Circuit 10：Using the Accelerometer。Circuit 11：Using the Compass

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。Robots 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 does。NOT。include 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

Description。The SparkFun ProDriver makes it easy to start developing with the TC78H670FTG bipolar stepper motor driver from Toshiba! Latch terminals provide instant solder-less connections to every feature offered. Use our extensive Arduino Library w

Description。No， this isn't a tank tread， this is a 0.5m long Cable Carrier with 10x15mm bits composing its main body and two screw fasteners at each end for efficient mounting. Sometimes called a "drag chain，" each carrier can be used in projects with a large number of moving parts to protect internally installed cables， pipes， or tubes so they can be bent and moved while remaining protected. Cable carriers can most commonly been found in 3D printers and CNC machines but they can be used in any situation where you need cables or tubes to bend without risk of them being damaged or wearing out prematurely.。This specific cable carrier offers inner dimensions of 10mm(height)by 15mm(wide)， an outer width of 22mm， and a bend radius of 20mm. Additionally， these carriers are thin enough to fit into an Actobotics channel， making custom slide machines or other projects even easier to manage. Much like a chain， individual links can be added or removed to make custom lengths.。Features。Inner Bit Height：10mm。Inner Bit Width：15mm。Outer Bit Height：14。Outer Bit Width：22mm。Minimum Bend Radius：20mm。Reinforced Nylon Structure

Description。This is the FemtoBuck， a small-size single-output constant current LED driver. Each FemtoBuck has the capability to dim a single high-power channel of LEDs from 0-350mA at up to 36V while the dimming control can be either accessed via PWM or analog signal from 0-2.5V. This board is based off of the PicoBuck LED Driver， developed in collaboration with Ethan Zonca， except instead of blending three different LEDs on three different channels the FemtoBuck controls just one.。For the FemtoBuck， we've increased the voltage ratings on the parts to allow the input voltage to cover the full 36V range of the AL8805 driver. Since the FemtoBuck is a constant current driver， the current drawn from the supply will drop as supply voltage rises. In general， efficiency of the FemtoBuck is around 95%， depending on the input voltage. On board each FemtoBuck you will find two inputs for both power input and dimming control pins and an area to install a 3.5mm screw terminal. Finally at either side of the board you will find small indents or "ears" which will allow you to use a zip tie to secure the wires to the board after soldering them down. This version of the FemtoBuck is equipped with a small solder jumper that can be closed with a glob of solder to double the output current from 330mA to 660mA.

Description。This is a simple knob that connects to the small and medium sized linear slide potentiometers. Each knob uses friction to secure itself to fit onto the slide pot. Once attached， this small knob provides you with an easier to use potentiometer for your project!

Description。With 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

Description。The Raspberry Pi 400 is a complete Raspberry Pi 4-based personal computer， integrated into a keyboard. By incorporating the board into a keyboard， it removes the need for a case and other accessories normally needed to run a Raspberry and

Description。The Raspberry Pi 400 is a complete Raspberry Pi 4-based personal computer， integrated into a keyboard. By incorporating the board into a keyboard， it removes the need for a case and other accessories normally needed to run a Raspberry and

。Description。USB-C is fantastic. What makes this cable even better is that one of the features we love so much about USB-C has been replicated to the USB-A 2.0 plug! These cables have minor， yet genius modifications that allow them to be plugged into their ports regardless of orientation. No longer will you fight the USB "super position" where both orientations of your plug seem incorrect. A simple solution to a problem that nearly everyone has faced.。Until we have converted all our hubs， chargers， and ports over to USB-C this is the cable you're going to need for basic USB 2.0 connections. This cable is much thinner and flexible than its 3.1 counterpart and is perfect for USB to serial applications as well as for direct connection to basic microcontrollers.。This cable has the D+/D- wires along side large-gauge VBUS/GND wires. Rated for 2A， we've successfully pulled 2A@5V with minimal voltage drop. If you're looking for a the full USB-C implementation checkout our USB 3.1 cable.。Features。Reversible USB-A connector。Reversible USB-C connector

Description。USB-C is fantastic. What makes this cable even better is that one of the features we love so much about USB-C has been replicated to the USB-A 2.0 plug! These cables have minor， yet genius modifications that allow them to be plugged into their ports regardless of orientation. No longer will you fight the USB "super position" where both orientations of your plug seem incorrect. A simple solution to a problem that nearly everyone has faced.。Until we have converted all our hubs， chargers， and ports over to USB-C this is the cable you're going to need for basic USB 2.0 connections. This cable is much thinner and flexible than its 3.1 counterpart and is perfect for USB to serial applications as well as for direct connection to basic microcontrollers.。This cable has the D+/D- wires along side large-gauge VBUS/GND wires. Rated for 2A， we've successfully pulled 2A@5V with minimal voltage drop. If you're looking for a the full USB-C implementation checkout our USB 3.1 cable.。Features。Reversible USB-A connector。Reversible USB-C connector

Description。USB-C is fantastic. What makes this cable even better is that one of the features we love so much about USB-C has been replicated to the USB-A 2.0 plug! These cables have minor， yet genius modifications that allow them to be plugged into their ports regardless of orientation. No longer will you fight the USB "super position" where both orientations of your plug seem incorrect. A simple solution to a problem that nearly everyone has faced.。Until we have converted all our hubs， chargers， and ports over to USB-C this is the cable you're going to need for basic USB 2.0 connections. This cable is much thinner and flexible than its 3.1 counterpart and is perfect for USB to serial applications as well as for direct connection to basic microcontrollers.。This cable has the D+/D- wires along side large-gauge VBUS/GND wires. Rated for 2A， we've successfully pulled 2A@5V with minimal voltage drop. If you're looking for a the full USB-C implementation checkout our USB 3.1 cable.。Features。Reversible USB-A connector。Reversible USB-C connector

Description。Keeping your workspace clean and well kept has always been a paramount concern for keeping all your possessions well maintained and pristine. With this Insulated Silicone Soldering Mat， you will be provided with the means to protect your d

Description。The gator：log is the perfect data logging tool for your next experiment. With the automation of the data collection process， gone are the days of rushing around with a pen and composition notebook to simultaneously record data and your observations. Now， you only need to sit back and observe your experiment.。The gator：log allows a student(s)to focus more on what is happening in the experiment than watching a thermometer or sensor readout. Additionally， a micro：bit can still be used to provide a graphical display for observing changes in data， when a sensor readout is required. If tied in conjunction with the gator：RTC， stop watches on time based experiments can become a thing of the past too(with the added benefit of more accurate timing results)!。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 SparkFun gator：log Hookup Guide。Features。ATmega328P microcontroller。μSD(micro SD)card slot for μSD card for data storage。Two status indicator LEDs。Serial connection via RX and TX pads。GND and 3V3 pads for 3.3V power connection

Description。The SparkFun RTK Surveyor is an easy to use GNSS receiver for centimeter-level positioning. Perfect for surveying， this preprogrammed device can also be used for autonomous driving， navigation， asset tracking and any other application where there is a clear view of the sky. The RTK Surveyor can also be used as a base station. With the flick of a switch， two RTK Surveyors can be used to create an RTK system capable of 14mm horizontal positional accuracy. The built-in Bluetooth(R)connection via an ESP32 WROOM enables the user to use the RTK Surveyor with their choice of GIS application on a phone or tablet. The built in battery allows field use for up to four hours and is compatible with common USB battery banks.。This device can be used in four modes：GNSS Positioning(～30cm accuracy)。GNSS Positioning with RTK(1.4cm accuracy)。GNSS Base Station。GNSS Base Station NTRIP Server。In Position mode the device receives L1/L2 signals from a user-provided antenna and the high-grade GNSS receiver provides lat/long and altitude with accuracies around 300mm.。In Positioning with RTK mode the device receives L1/L2 signals from the antenna and correction data from a base station. The correction data can be obtained from a cellular link to online correction sources or over a radio link to a 2nd RTK Surveyor setup as a base station.。In Base Station mode the device is mounted to a temporary position(like a tripod)and begins transmitting correction data over a radio or internet connection. A base is often used in conjunction with a second unit set to 'Positioning with RTK' to obtain the 14mm relative accuracy.。In Base Station NTRIP Server mode the device is mounted to a semi or permanently fixed position(like a roof)and connects over WiFi to transmit the correction data to a NTRIP caster so that any rover can access the correction data over a cellular or internet connection. This type of base is a very easy way to setup a very precise absolute correction source.。Two cables are provided with the RTK Surveyor allowing a user to plug on our easy to use Serial Telemetry Radios or their own radio link. If a local correction source is within 10km， a user can also use their phone to provide correction data over the Bluetooth(R)link(no external radio needed!).。Note：The SparkFun RTK Surveyor is just the enclosed device and does NOT include an antenna， serial telemetry radio， or associated mounting pieces. These items will need to be purchased separately from the Hookup Accessories below.。Get Started With the SparkFun RTK Surveyor Guide。Features。GNSS Receiver：ZED-F9P。Concurrent reception of GPS， GLONASS， Galileo and BeiDou。Receives both L1C/A and L2C bands。Current：68mA - 130mA(varies with constellations and tracking state)。Time to First Fix：25s(cold)， 2s(hot)。Max Navigation Rate：PVT(basic location over UBX binary protocol)- 25Hz。RTK - 20Hz。Raw - 25Hz。Horizontal Position Accuracy：2.5m without RTK。0.010m with RTK。Max Altitude：50km(31 miles)。Max Velocity：500m/s(1118mph)。Bluetooth(R)Transceiver：ESP32 WROOM。Xtensa(R)dual-core 32-bit LX6 microprocessor。Up to 240MHz clock frequency。16MB of flash storage。520kB internal SRAM。Integrated 802.11 BGN WiFi transceiver。Integrated dual-mode Bluetooth(R)(classic and BLE)。Hardware accelerated encryption(AES， SHA2， ECC， RSA-4096)。2.5 μA deep sleep current。Overall Device。Internal Battery：LiPo 1000mAh with 500mA charging。Radio Port：3.3V TTL Serial(57600bps RTCM TX/RX)。Data Port：3.3V TTL Serial(115200bps NMEA)。Weight：132g(entire device including battery)。Dimensions：118mm×79mm×30mm(4.7in×3.1in×1.2in)。1x Qwiic Connector。1x microSD Socket for optional logging。Changes：This version(which replaces SPX-17369)uses a reinforced edge mount SMA connector for better resiliency when a fixed 'stub' antenna is used.

Description。This 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

。Description。Who doesn't occasionally need power regulation? We certainly do， so we've designed the SparkFun BabyBuck Regulator Breakout to help us with just such a task. Featuring the AP63203 from Diodes Inc， this breakout board takes advantage of a 2A synchronous buck converter that has a wide input voltage range of 3.8V to 32V and fully integrated 125mΩ high-side power MOSFET/68mΩ lowside power MOSFET to provide high-efficiency step-down DC/DC conversion. All of this snuggled up in a low-profile， TSOT26 package that's integrated into a 0.4in by 0.5in board.。Unlike it's sibling， the BabyBuck sacrifices power option flexibility for space. Don't worry， though， because you can still use the plated through holes for input and output power. With some simple right-angle headers， you'll be up and running in no time.。Frequency Spread Spectrum(FSS)reduces EMI and a proprietary gate driver scheme resists switching node ringing without sacrificing MOSFET turn-on and turn-off times， which further erases high-frequency radiated EMI noise.。Get Started with the SparkFun Buck Regulator Hookup Guide。Features。Low-Profile Footprint。VIN 3.8V to 32V。VOUT 3.3V。Up to 2A Continuous Output Current。0.8V ± 1% Reference Voltage。22μA Ultralow Quiescent Current。Switching Frequency - 1.1MHz。Supports Pulse Frequency Modulation(PFM)。Up to 80% Efficiency at 1mA Light Load。Up to 88% Efficiency at 5mA Light Load。Fixed Output Voltage - 3.3V。Proprietary Gate Driver Design for Best EMI Reduction。Frequency Spread Spectrum(FSS)to Reduce EMI。Precision Enable Threshold to Adjust UVLO。Protection Circuitry。Overvoltage Protection。Cycle-by-Cycle Peak Current Limit。Thermal Shutdown

。Description。These are your run-of-the-mill 1/4 Watt， +/- 5% tolerance PTH resistors. Commonly used in breadboards and other prototyping applications， these 1K ohm resistors make excellent pull-ups， pull-downs and current limiters. These thick-lead versions of the resistors fit snugly into a breadboard with very little movement， so you should have few to no issues using them in your next project!。These resistors come in bags of 20.

Description。Standard 'Watch' or Real-Time-Clock crystal. 32.768kHz means it is precisely half of a 16-bit counter. Start counting at 0x8000(or 32768). When the counter rolls over from 65535 to 0， then you know that exactly one second has passed. Reset the interrupt， reset the counter， and start counting again! Rated at 12.5pF load capacitance， 35K ohm max(18K ohm typical)series resistance， and +/- 20ppm stability. Small cylinder package.

Description。The SparkFun Multiplexer Breakout provides access to all pins and features of the 74HC4051， an 8-channel analog multiplexer/demultiplexer. The 74HC4051 allows you to turn four I/O pins into eight multifunctional， individually selectable signals， which can be used to do everything from driving eight LEDs to monitoring eight potentiometers.。The 74HC4051 can function as either a multiplexer or a demultiplexer， and it features eight channels of selectable inputs/outputs. The routing of common signal to independent I/O is set by digitally controlling three select lines， which can be set either high or low into one of eight binary combinations.。One half of the board breaks out the control signals(E， S0-S2)and common input/output(Z). The other side provides access to all eight independent I/O's(Y0-Y7). Both sides include supply and ground connections(VCC， VEE， GND).。Get Started with the 74HC4051 Breakout Guide。Features。Switches analog or digital signals。8 channels controlled by 3 select inputs。Wide voltage supply range：2 -- 10V。Bipolar supply support(e.g.， ±5V)。Optional enable input。Breadboard compatible breakout