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誤差が小さな高精度水晶を用いた自律タイプの電波時計時刻送信機。高精度水晶発振子をタイミングデバイスとして使用した、自律精度の高い電波時計時刻送信機です。初期設定として本機に時刻情報を入力した後は、高精度水晶発振子により自律動作で時刻を保持するため、ネットワークやGPSによる外部の時刻修正が不要です。電波時計が標準電波を受信しづらい環境でも、正確な時刻情報を電波時計に設定できます。

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

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

。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 Digilent Pmod I2S2 features a Cirrus CS5343 Multi-Bit Audio A/DConverter and a Cirrus CS4344 Stereo D/AConverter， each connected to 3.5mm Audio Jacks. These circuits allow a system board to transmit and receive stereo audio signals via the I2S protocol. The Pmod I2S2 supports 24-bit resolution per channel at input sample rates up to 108KHz.。Features。Stereo 24-bit A/Dand D/Aconverters for I2S audio input and output。Standard 1/8"(3.5mm)stereo audio jacks。Optional automatic serial clock generation for audio input。12-pin Pmod Port with two I2S interfaces。Follows the DigilentPmod Interface Specification 1.2。Product Compliance：。〇HTC：8473301180。〇ECCN：EAR99。What's Included。Pmod I2S2。Custom anti-static Pmod packaging

The ProtopadSMD is a prototyping BoosterPack for the MSP430 Launchpad with SMD footprints.。Features。Fits the MSP430 Launchpad.

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。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 Pro Micro RP2040 is a low-cost， high performance board with flexible digital interfaces featuring the Raspberry Pi Foundation's RP2040 microcontroller. Besides the good 'ol Pro Micro footprint， the board also includes a WS2812B

Description。These stackable headers are made to work with the SparkFun ESP32 Thing Plus to connect to shield with a Feather footprint. This set includes one 12-pin and one 16-pin header； the pins are spaced by 0.1".。Each set of headers allows you to

Description。The SparkFun Qwiic Shield for Thing Plus provides you with a quick and easy way to enter into SparkFun's Qwiic ecosystem with your Thing Plus or Feather boards. Since the Thing Plus and Feather footprints are interchangable， you can use th

Sick of Beige PCB templates and clear enclosures make it super easy to design your project for a case. Drop a standard PCB footprint on your schematic、and then route on the board template. The board shape、size、limitations、and many connector placement

Sick of Beige PCB templates and clear enclosures make it super easy to design your project for a case. Drop a standard PCB footprint on your schematic、and then route on the board template. The board shape、size、limitations、and many connector placement

Description。Turn your ideas into a reality quickly with the new Arduino Nano Every。This small， robust and powerful board has the same classic Nano footprint loved worldwide. It can be programmed with the easy to use Arduino IDE available offline an

Sick of Beige PCB templates and clear enclosures make it super easy to design your project for a case. Drop a standard PCB footprint on your schematic、and then route on the board template. The board shape、size、limitations、and many connector placement

Sick of Beige PCB templates and clear enclosures make it super easy to design your project for a case. Drop a standard PCB footprint on your schematic、and then route on the board template. The board shape、size、limitations、and many connector placements are already taken care of.

Sick of Beige PCB templates and clear enclosures make it super easy to design your project for a case. Drop a standard PCB footprint on your schematic、and then route on the board template. The board shape、size、limitations、and many connector placements are already taken care of.

。Sick of Beige PCB templates and clear enclosures make it super easy to design your project for a case. Drop a standard PCB footprint on your schematic、and then route on the board template. The board shape、size、limitations、and many connector placements are already taken care of.

Description。This Piezo Alarm is a great option for when you need an audible alarm(or are just looking for a way to prank your friends). This alarm has 16 different output options that can be changed with the DIP switches on the unit. Select Continuous， Chime， Intermittent， Warble， or Pulsating and amaze your friends.。Features。Operating Voltage：5-16Vdc。Operating Frequency：3KHz。Warble Frequency：2.8KHz to 3.2KHz。Diameter：35.8mm， Height 35.7mm。103 dB(A)at 16V at 61cm。90 dB(A)at 5V at 61cm

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。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

Description。This 2x20 pin female header is meant to allow you to extend the reach of any board with the standard 2x20 GPIO pin footprint like the Raspberry Pi， Google Coral， and NVIDIA Jetson. You can also solder it to Pi HATs that do not have headers on the board. This is assuming that the board is only populated on the top of the board or the height of the components do not get in the way if it is a two layer board.。The pin header is 13.5mm in height and the pin length is 9.80mm. This header also has standard 0.1" spacing.。Note：Please note that this product is just the header. The Raspberry Pi， enclosure， Servo pHAT， and Qwiic SHIM are sold separately.

Description。Serial flash chips are。everywhere。and they're as useful as they are ubiquitous. If you've never used a serial flash device in your own projects， you should try it， because it's very handy to have a place to store things that don't fit in program memory. Things like sensor readings， long strings， and error logs can be hard to stow away on platforms that don't have a ton of in-built storage， which is where serial flash comes in. Simply write all of that data out over SPI for the flash chip to hold on to and retrieve it later! And thanks to their ubiquity， these chips have been largely standardized not only in terms of their software interface but also their hardware footprint， so there are plenty of serial flash chips to choose from.。This board comes populated with the Winbond W25Q128JV serial flash memory which sports a standard， Dual-， and even Quad-SPI interface as well as a capacity of 128Mbits. That's 16 Megabytes! Surely， that's。more memory than anyone will ever need.。We also sell this same board completely unpopulated in case you have a favorite flash memory with a WSON-8 6x5 footprint.。Experimental Product：SparkX products are rapidly produced to bring you the most cutting edge technology as it becomes available. These products are tested but come with no guarantees. Live technical support is not available for SparkX products. Head on over to our forum for support or to ask a question.。Features。0.1" Pin Header。128M-bit / 16M-byte。133MHz Single， Dual/Quad SPI clocks。2.7 to 3.6V Supply Voltage

。Description。The Leopard Imaging Camera is a 136° FOV(field of view)wide angle camera module that is great for machine vision applications， and designed specifically to be compatible with the NVIDIA Jetson Nano Developer Kit. This camera incorporates a Sony IMX219 8.08MP color sensor， a fixed focus(M8)lens， and utilizes CSI-2 MIPI 2-lane data output interface.。This is the same camera that we include in the SparkFun Jetbot v2.1 Kit.。Note：SparkFun has not established the compatibility of this camera with Raspberry Pi. We are currently working with the manufacturer， but due to firmware restrictions Leopard cameras do not work with any Raspberry Pi's at this time.。Features。Field of view(FOV)：136°。Module size：150mm(L)x 25mm(W)。Sensor type：Sony IMX219 8.08MP color sensor。Active pixels：3280(H)x 2464(V)。Image size：Diagonal 4.60mm(Type 1/4.0)。F/No：2.0(H136)。Focal length：1.58mm(H136)。TV distortion：<-15%(H136)。Focusing range：30cm - Infinity。Lens type：Fixed Focus(M8 lens)。Pixel size：1.12um×1.12um。Data output interface：CSI-2 MIPI 2-lane。IR Cutter Filter：Yes

A clear laser-cut acrylic project case kit that fits DP7070 square PCBs(70mmx70mm). Protect your project from electrical shorts and fingers、but keep it accessible for hacking and showing off. Sick of Beige basic case v1 is designed to be simple、cheap、and easy to assemble. The project PCB is sandwiched between two laser cut acrylic sheets、and the whole assembly is held together with aluminum screws and standoffs.。Sick of Beige PCB templates and clear enclosures make it super easy to design your project for a case. Drop a standard PCB footprint on your schematic、and then route on the board template. The board shape、size、limitations、and many connector placements are already taken care of.。This case fits DP7070(70mmx70mm PCB size)compatible PCBs.

。Description。The SparkFun Qwiic Shield for Teensy provides you with a quick and easy way to enter into SparkFun's Qwiic ecosystem with your Teensy boards. This shield is sized to work with the footprint of Teensy 4.0， Teensy 3.2， and Teensy LC. This shield connects the I2C bus(GND， 3.3V， SDA， and SCL)on your Teensy to four SparkFun Qwiic connectors(two horizontally and two vertically mounted). The Qwiic ecosystem allows for easy daisy chaining so， as long as your devices are on different addresses， you can connect as many Qwiic devices as you'd like.。We have also added a "PROG" button on this shield that is electrically parallel with the "PROG" button on the Teensy Boards so you can choose to enter Programming mode using either the button on your Teensy or the button on the shield.。The Qwiic Shield for Teensy comes with the Teensy Header Kit and you will need to solder the headers to the shield and， if necessary， to your Teensy board. Take care to match the markings on the Qwiic Shield to the appropriate pins on your Teensy to avoid possibly damaging your boards.。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 Shield for Teensy Hookup Guide。Features。Teensy 4.0， 3.2， or LC Footprint Compatible。4x Qwiic Connection Ports。"PROG" Button w/ satisfying tactile feedback。I2C Jumper。3.3V and GND Buses

。Control HD44780 LCDs from the Bus Pirate with this breakout board. The Bus Pirate LCD mode uses an adapter because there aren't enough pins to control a character display. You can build it with a few chips on a bread board、or you can buy this one ready-made. Includes a short connector cable. Every sale directly supports open source development of the Bus Pirate.。Supports the most common HD44780 1x16 connector。Contrast adjustment。Connection indicator LED。Backlight connections adjustable。Many backlights can be dimmed。Compatible with Bus Pirate v3.x and v2go(all production versions)。Includes connector cable(Bus Pirate and LCD NOT included)。Uses DP6037 standard PCB footprint。Open source(CC-0/Public Domain)。Each unit is tested before it leaves Seeed Studio

Description。The SparkFun ProtoShield Kit lets you customize your own Arduino shield using whatever circuit you can come up with and then test it to make sure everything is working the way it should! The SparkFun ProtoShield Kit is based off the Arduino R3's footprint that allows you to easily incorporate it with favorite Arduino-based device.。One of our favorite features with this version of the ProtoShield Kit is the solderable-like breadboard prototyping area! Half of this area was designed with a breadboard in mind. On the underside of the shield you will be able to see open jumper pads between each through hole to make a connection like a breadboard. Once you add a component， simply add a solder jumper between holes to make a connection. For those that prefer the standard prototyping pads， we left the other side(near the BlueSMiRF and Serial UART ports)as is.。We have also moved the prototype testing components(those used to make sure your circuit works effectively)off of the "mainland" of the shield and onto a ProtoSnap styled， removable PCB. On this test area you will find soldering areas for the two yellow 3mm LEDs(as well as pins to control and power them)， two 330 Ohm resistors， a 10K Ohm resistor， and a pushbutton.。Note：。Since this product is a kit， assembly and a basic knowledge of soldering will be required. The SparkFun ProtoShield Kit does not come pre-assembled.。Get Started With the SparkFun ProtoShield Kit Guide。Features。Arduino R3 Footprint。Soldering Kit。Solderable-Like Breadboard。BlueSMiRF or Comparable 6-pin Pins。Detachable Test Area

。Description。The Motor Bridge Cape features bi-directional motor control using two TB6612FNG integrated dual H-bridge、so it can control two stepper motors or four brushed DC motors with 6～15V DC power and about 1A current draw per motor. The cape provides 5V regulated power to BBG or BBB with a max input voltage of 15V. It also has six servo control interface and six expand IO. All the features are provided by the on board STM32F0 coprocessor. The coprocessor can communicate with BeagleBone by I2C or UART interface.。Features。Can drive 4 DC Motors or 2 Stepper Motors。Can drive 6 Servos。Mbed Platform。STM32F0 coprocessor。Two TB6612FNG。6 expand IOs。Communicate with BBG by I2C or UART interface。Specification。Battery Input Voltage：6～15V。H-bridge Working Voltage：6～15V。DC/DC 5V output current：2A max。3V3 output current：350mA max。4 H-bridge driver、each rated current：1.2A、peak current：3.2A。6 Servo driver、working voltage：5V、total current is not more than 1.5A。Input reverse connect protection。Over current protection：3A one-off quick fuse

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。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

5V/3.3V breadboard power supply designed by SeeedStudio. It can directly takes power from DC wall wart and outputs both 5V and 3.3V regulated voltage. Compare to other breadboard power supply designs、this one provided micro-USB port、you can use both 5V and 3.3V regulated voltage. The 5V/3.3V breadboard power supply includes micro-USB port and power jack port. This power supply fits the breadboard which is 5.3cm wide like Bread board Clear - 8.2×5.3cm、and it can fit the 5.5cm wide breadboard too Basic Bread board - 16.55.5 cm、but just a little tight.。Features：Dual lane outpu。Dual power port input。5V/3.3V regulated voltage。Maximun output current is 400mA。Part list：5V/3.3V Breadboard Power Supply Board 1。Specification：Input voltage：7V 15V。Output Voltage：3.3V Channel：3.267V - 3.333V。5V Channel：4.9V 5.1V。Output current 400mA

Description。Please note， these machines are built to order have an estimated lead time of 4 business days before shipping。This 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 design。15mm belts。Inductive homing switches。New electronics。Integrated t-slot Hybrid Table(OPTIONAL)。Fully-supported Y extrusions。Leadscrew-driven Z-axis。New， more rigid 65mm router mount。Sweepy 65mm V2 dust boot。Note：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 Packs。T-Track Clamp Kits。Z-Plus。Proximity Switch Kit。Maintenance Kit。Shapeoko 3 Bit Setter。HDZ 4.0。。Features。Footprint：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)

Description。The SparkFun Load Sensor Combinator is a bare PCB that combines four load sensors into a standard four-wire Wheatstone bridge configuration. If you open up an electronic bathroom scale， you'll find a large rat's nest of wires. The Load Sensor Combinator was created to combine the 12 wires found in a bathroom scale into the standard four-wire Wheatstone bridge configuration.。This version of the SparkFun Load Sensor Combinator features a few changes that you specifically asked for! We updated the silk on the breakout to read "C/+/-" instead of "R/W/B" and moved the temperature sensor connector away from the standoff hole.。You can either use four individual load sensors or simply purchase an off-the-shelf bathroom scale and hack the combinator into it rather than trying to design a base to properly mount four load sensors.。This board works great with our Load Cell Amplifier breakout board； the five pins on the edge of the combinator line up directly to the five pins on the amplifier.。If your amplifier and supporting electronics are more than a few inches away from the scale， an RJ45 footprint is provided. The four Wheatstone pins(E+/E-/S+/S-)as well as the shield pin are connected to twisted pairs within a standard cheap Ethernet cable. This allows the amplifier board to be placed many feet away from the scale itself.。The combinator board also includes a footprint for the DS18B20 one-wire temperature sensor. This allows the user to gather the temperature of the scale in case there is a large variance between the scale and the amplifier. These three pins are accessed through the RJ45 connection as well， allowing remote temperature readings to be gathered over one twisted pair Ethernet cable.。NOTE：。The SparkFun Load Sensor Combinator will only work with 3 wire load sensors， it is not compatible with 4 wire load cells.

Description。The SparkFun LTE CAT M1/NB-IoT Shield with Hologram SIM Card equips your Arduino or Arduino-compatible microcontroller with access to data networks across the globe without needing to provide your own subscriber identity module. This shield adds wireless， high-bandwidth cellular functionality to your IoT project while maintaining low power consumption and a small footprint. The SparkFun LTE CAT M1/NB-IoT Shield is based off the Arduino R3's footprint that allows you to easily incorporate it with favorite Arduino-based device.。At the heart of the LTE Cat M1/NB-IoT shield is a u-blox SARA-R410M-02B LTE Cat M1/NB-IoT modem. Cat M1(Category M1)and NB-IoT(Narrowband IoT)are both Low Power Wide Area Network(LPWAN)technologies that are designed to provide cellular communication to small IoT devices. They operate on LTE network bands just like most smartphones， and should be supported by most cellular network carriers. The u-blox SARA-R4 module communicates over a UART via a simple AT command set. We've provided a library to help you get started with everything from sending SMS text messages to communicating with servers over a TCP/IP connection. Additionally， both the module and library support an I2C GPS interface via a Qwiic connector， so you can plug in a u-blox GPS module and start remotely tracking your project.。Each SparkFun LTE CAT M1/NB-IoT Shield also includes a ceramic， Molex 1462000001 SMD antenna. The antenna has a gain of 3.8dBi around 1.7GHz to 2.7GHz. However， if you would prefer to use an external antenna， we have provided a U.FL connector that can be utilized by simply slicing through a jumper with a hobby knife.。Please be aware that you will need to supply and solder on your own headers before attaching it to your Arduino based device. Also， if you already have your own SIM， we also offer this shield without a card included.。Note：。Be sure to check the。Hardware Overview。section in the Hookup Guide for compatible GPS modules. The onboard Qwiic connector is only designed to support u-blox-based GPS modules. It does not support any other GPS modules or sensors. We are continuing to add more modules so be sure to check back every so often to find out more!。Get Started with the SparkFun LTE CAT M1/NB-IoT Shield Guide

。Description。Think of the RedBoard Artemis as just another Arduino... That has BLE. And one megabyte of flash. And runs at less than 1mA. Oh， and it can run TensorFlow models. Ya， that too. The RedBoard Artemis takes the incredibly powerful Artemis module from SparkFun and wraps it up in an easy to use and familiar Uno footprint. We've written an Arduino core from scratch to make programming the Artemis as familiar as。Serial.begin(9600)。. Time-to-first-blink is less than five minutes.。The RedBoard Artemis has the improved power conditioning and USB to serial that we've refined over the years on our RedBoard line of products. A modern USB-C connector makes programming easy. A Qwiic connector makes I2C easy. The RedBoard Artemis is fully compatible with SparkFun's Arduino core and can be programmed easily under the Arduino IDE. We've exposed the JTAG connector for more advanced users who prefer to use the power and speed of professional tools. We've added a digital MEMS microphone for folks wanting to experiment with always-on voice commands with TensorFlow and machine learning. We've even added a convenient jumper to measure current consumption for low power testing.。With 1MB flash and 384k RAM you'll have plenty of room for your sketches. The on-board Artemis module runs at 48MHz with a 96MHz turbo mode available and with Bluetooth to boot!。The SparkFun RedBoard Artemis is a great platform to 'kick the tires' of this amazing module. If you're interesting in testing out the full capabilities of the SparkFun Artemis module or if you're looking for more compact solution， be sure to checkout our ATP and Nano versions of the Artemis line.。Get Started With the SparkFun Artemis RedBoard Guide。Features。Arduino Uno R3 Footprint。1M Flash / 384k RAM。48MHz / 96MHz turbo available。24 GPIO - all interrupt capable。21 PWM channels。Built in BLE radio。10 ADC channels with 14-bit precision。2 UARTs。6 I2C buses。4 SPI buses。PDM Interface。I2S Interface。Qwiic Connector

Espruino Pico is a tiny microcontroller board that runs JavaScript(it doesn't need to be plugged into a computer)、making it easier than ever to control electronics in the real world. You can program it with nothing but a serial terminal program、but there's also an IDE that runs in the Chrome Web browser. It's got a syntax highlighted editor as well as a graphical programming language.。Once you have uploaded code、you can inspect and change variables(including functions)while your program is running. If you make something with an Espruino Pico and need to change it a year later、your original code is still there waiting for you!。This is the pinned version of the board、which fits perfectly into breadboard. If you need without pre-soldered pins、please visit Espruino Pico(unpinned).。Features：33mm×15mm(1.3×0.6 inch)。22 GPIO pins：9 Analogs inputs、21 PWM、2 Serial、3 SPI、3 I2C。All GPIO is 5 volt tolerant(Arduino compatible)。2 rows of 9 0.1" pins、with a third 0.05" row of 8 pins on the end。On-board USB Type A connector。Two on-board LEDs and one button.。STM32F401CDU6 CPU - ARM Cortex M4、384kb flash、96kb RAM。On-board 3.3v 250mA voltage regulator、accepts voltages from 3.5v to 16v。Current draw in sleep：< 0.05mA - over 2.5 years on a 2500mAh battery。On-board FET can be used to drive high-current outputs。Part List：Espruino Pico(pinned)x 1

Espruino Pico is a tiny microcontroller board that runs JavaScript(it doesn't need to be plugged into a computer)、making it easier than ever to control electronics in the real world. You can program it with nothing but a serial terminal program、but there's also an IDE that runs in the Chrome Web browser. It's got a syntax highlighted editor as well as a graphical programming language.。Once you have uploaded code、you can inspect and change variables(including functions)while your program is running. If you make something with an Espruino Pico and need to change it a year later、your original code is still there waiting for you!。This is unpinned version、if you want pre-soldered pins、please visit Espruino Pico(pinned).。Features：33mm×15mm(1.3×0.6 inch)。22 GPIO pins：9 Analogs inputs、21 PWM、2 Serial、3 SPI、3 I2C。All GPIO is 5 volt tolerant(Arduino compatible)。2 rows of 9 0.1" pins、with a third 0.05" row of 8 pins on the end。On-board USB Type A connector。Two on-board LEDs and one button.。STM32F401CDU6 CPU - ARM Cortex M4、384kb flash、96kb RAM。On-board 3.3v 250mA voltage regulator、accepts voltages from 3.5v to 16v。Current draw in sleep：< 0.05mA - over 2.5 years on a 2500mAh battery。On-board FET can be used to drive high-current outputs。Part List：Espruino Pico(unpinned)x 1

Here is a very simple breadboard power supply kit that takes power from a DC wall wart and outputs a selectable 5V or 3.3V regulated voltage. The .1" headers are mounted on the bottom of the PCB for simple insertion into a breadboard. Pins labeled VCC and GND plug directly into the power lines. The lone pair of pins have no electrical connection but help support the PCB.。There are two pins available within the barrel jack footprint. Any stripped +/- DC supply can be connected instead of the barrel connector. Board has both an On/Off switch and a voltage select switch(3.3V/5V).。Comes as a bag of parts kit and is easily assembled if you can follow the silkscreen indicators and have beginning experience with a soldering iron. You will need to read the resistor bands or use a multimeter to determine the resistor sizes.。Dimensions：1.25x1.25"。Kit Includes：DC Barrel Connector(2.1mm center positive)。TO-220 Voltage Regulator(LM317 1.5A max current)。1N4004 Reverse Protection Diode。100uF 25V Capacitor。10uF 25V Capacitor。0.1uF 50V Capacitor。Red Power LED - High Brightness。2×SPDT Slide Switch。4×0.1" Header Pins。2×330 Resistor 1/6W。390 Resistor 1/6W。240 Resistor 1/6W。Bare PCB with Silkscreen Indicators。PTC resettable fuse