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Description。The SparkFun Soil Moisture Sensor is a simple breakout for measuring the moisture in soil and similar materials. The soil moisture sensor is pretty straight forward to use. The two large exposed pads function as probes for the sensor， toge

Description。The SparkFun Soil Moisture Sensor is a simple breakout for measuring the moisture in soil and similar materials. The soil moisture sensor is pretty straightforward to use. The two large， exposed pads function as probes for the sensor， together acting as a variable resistor. The more water that is in the soil means the better the conductivity between the pads will be， resulting in a lower resistance and a higher SIG out. This version of the Soil Moisture Sensor includes a 3-pin screw pin terminal pre-soldered to the board for easy wiring and setup.。To get the SparkFun Soil Moisture Sensor functioning， all you will need is to connect the VCC and GND pins to your Arduino-based device(or compatible development board). You will receive a SIG out， which will depend on the amount of water in the soil. One commonly known issue with soil moisture senors is their short lifespan when exposed to a moist environment. To combat this， we've had the PCB coated in gold finishing(ENIG， or Electroless Nickel Immersion Gold).。Note：Check the Hookup Guide below for assembly and weatherproofing instructions， as well as a simple example project that you can put together yourself!。Get Started with the Soil Moisture Sensor Guide

Description。The MicroMod Qwiic Carrier Board can be used to rapidly prototype with other Qwiic devices. The MicroMod M.2 socket provides users the freedom to experiment with any processor board in the MicroMod ecosystem. This board also features two Qwiic connectors and eight 4-40 screw inserts to connect and mount Qwiic devices.。This version of the SparkFun MicroMod Qwiic Carrier Board features two ports for our standard 1in. by 1in. Qwiic breakouts. However， you aren't beholden to attaching just a duo of Qwiic breakouts since you are able to stack the boards on top of each other， allowing you to hook up a full circuit of Qwiic sensors and accessories to fully utilize your next project!。MicroMod is a modular interface ecosystem that connects a microcontroller "processor board" to various "carrier board" peripherals. Utilizing the M.2 standard， the MicroMod standard is designed to easily swap out processors on the fly. Pair a specialized carrier board for the project you need with your choice of compatible processor!。Get Started With the MicroMod Qwiic Carrier Board Guide。Features。M.2 MicroMod(Processor Board)Connector。USB-C Connector。3.3V 1A Voltage Regulator。Qwiic Connectors。Boot/Reset Buttons。Charge Circuit。Eight 4-40 Inserts

Description。The MicroMod Qwiic Carrier Board can be used to rapidly prototype with other Qwiic devices. The MicroMod M.2 socket provides users the freedom to experiment with any processor board in the MicroMod ecosystem. This board also features two Qwiic connectors and four 4-40 screw inserts to connect and mount Qwiic devices.。This version of the SparkFun MicroMod Qwiic Carrier Board features a single port for our standard 1in. by 1in. Qwiic Breakouts. However， you aren't beholden to attaching just one Qwiic breakout since you are able to stack the boards on top of each other， allowing you to hook up a full circuit of Qwiic sensors and accessories to fully utilize your next project!。MicroMod is a modular interface ecosystem that connects a microcontroller "processor board" to various "carrier board" peripherals. Utilizing the M.2 standard， the MicroMod standard is designed to easily swap out processors on the fly. Pair a specialized carrier board for the project you need with your choice of compatible processor!。Get Started With the MicroMod Qwiic Carrier Board Guide。Features。M.2 MicroMod(Processor Board)Connector。USB-C Connector。3.3V 1A Voltage Regulator。Qwiic Connectors。Boot/Reset Buttons。Charge Circuit。Four 4-40 Inserts

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

Description。The SparkFun MicroMod Data Logging Board offers a highly customizable， low-power data logging platform using the MicroMod system allowing you to choose your own Processor to pair with the Carrier Board. The Data Logging Carrier Board breaks out connections for I2C via a Qwiic connector or standard 0.1"-spaced PTH pins along with SPI and serial UART connections for logging data from peripheral devices using those communication protocols.。The Data Logging Carrier Board allows you to control power to both the Qwiic connector on the board and a dedicated 3.3V power rail for non-Qwiic peripherals so you can pick and choose when to power the peripherals you are monitoring the data from. It also features a charging circuit for single-cell Lithium-ion batteries along with a separate RTC battery-backup circuit to maintain power to a real-time clock circuit on your Processor 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!。Get Started with the MicroMod Data Logging Carrier Board Guide。Features。M.2 MicroMod Connector。microSD socket。USB-C Connector。3.3V 1A Voltage Regulator。Qwiic Connector。Boot/Reset Buttons。RTC Backup Battery Charge Circuit。Independent 3.3V regulators for Qwiic bus and peripheral add-ons。Controlled by digital pins on Processor Board to enable low power sleep modes。Phillips #0 M2.5x3mm screw included

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。The SparkFun RTK Express is an easy to use GNSS receiver for centimeter-level positioning. Perfect for surveying， logging， and all types of post processing， 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 Express can also be used as a base station. With the press of a button， two RTK Expresses 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 Express with their choice of GIS application on a phone or tablet. The built in battery allows for over five hours of field use and is compatible with common USB battery banks.。We took all the lessons from the RTK Surveyor and built the RTK Express. The RTK Express is built upon the same ZED-F9P u-blox receiver as the original RTK Surveyor so you can expect the same incredible performance and rich feature set. The embedded display allows for immediate feedback of horizontal positional accuracy， satellites in view， logging status， survey-in status， battery level， Bluetooth(R)MAC， etc. The rocker switches found on the original have been replaced by keypad buttons. We increased the battery to 1300mAh for a longer run time. The internal switches have been replaced by a digital Mux allowing for some really exciting applications including event triangulation. More ESD protection was added to protect the RF path， and we even threw in an accelerometer for digital leveling in the field.。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 second RTK Surveyor/Express 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. The RTK Surveyor and RTK Express are interchangeable as a Base Station； an RTK Surveyor can be a base for an RTK Express and vice versa.。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 set up a very precise absolute correction source.。Two cables are provided with the RTK Express allowing a user to plug in 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 Express 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 Express 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。4MB 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 1300mAh with 500mA charging。Radio Port：3.3V TTL Serial(57600bps RTCM TX/RX)。Data Port：3.3V TTL Serial(115200bps NMEA)。Embedded OLED Display for available satellites， data logging， and more.。Push button controls。Weight：162g(entire device including battery)。Dimensions：132mm×101mm×32mm(5.2in×3.9in×1.2in)。1x Qwiic Connector。Changes：This version(which replaces SPX-18019)uses a reinforced edge mount SMA connector for better resiliency when a fixed 'stub' antenna is used.

Description。It's tiny， it's handy， and it can give your normal USB-equipped device a micro-B connector! With the USB to Micro-B Adapter you can make a flash drive connect to your tablet， connect a keyboard to your phone in order to text with ease， attach a Bluetooth(R)dongle to your RPi Zero， and more! Since this adapter is super small， it is very easy to transport anywhere you might need it --- making it extremely convenient to have in a pinch.。Installation of the USB to Micro-B Adapter is easy； simply slide it into a USB A connector， and you will instantly make that device micro-B capable!

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

Description。Poke Home Connectors have been featured on a number of our boards over the last few years by providing a simple screw-terminal-type connector for easy wire connection purposes. Similar to screw terminals， Poke Home Connectors grasp a wire entered into the receiving area of the pin-out by pressing down on the small plastic strip at the end of the housing. Doing so raises the internal clamp and， upon release of the button secures the wire in place without any soldering required.。Poke Home Connectors work better in environments with a lot of vibrations(i.e. automotive applications)or when a wire is expanding or contracting due to temperature cycling. Additionally， the tension in the connector is automatically adjusted to the wire gauge(assuming it is within the accepted wire thickness)as opposed to variances in tension when a user tightens the screw terminal.

Description。The XBee3 Thing Plus is an ultra capable and easy way for getting into wireless device development. The combination of XBee and Qwiic in a space conscious design represents a much needed update to our XBee offering. With 20 I/O pins and Lithium Polymer Ion battery management， the XBee3 Thing Plus has all the basics for quickly prototyping or developing a connected device such as a remote sensor. The Qwiic connector and JST connector for the battery make for a solder-less option when working with the board which shortens setup time.。The new XBee3 Micro Module provides the classic all-but plug and play 802.15.4 2.4GHz wireless connection(Zigbee 3.0 Protocol)that makes it so desirable， but with a new addition of being programmable with MicroPython(32KB of memory available for it). RF data rates up to 250 Kbps and 200ft indoor ranges and up to 4000ft line-of-sight outdoor range. Communicating with/Configuring the module happens via an AT Command set or the Digi API， X-CTU， both locally or over-the-air. There's even a mobile version of X-CTU now； Digi XBee(R)Mobile.。This variation features a U.FL antenna connector for longer range communications. Check out the related products for compatible antennas.。Get Started With the SparkFun XBee3 Thing Plus Guide。Features。XBee3 Micro Module。Silicon Labs EFR32MG SoC。250Kbps RF， 1Mbps Serial data rates。Indoor/Urban range up to 200 ft(60 m)。Outdoor/RF Line of Sight range up to 4000 ft(1200 m)。+8 dBm transmit power。-103 dBm receiver sensitivity。UART， I2C， SPI Interfaces(SPI currently not available at this time， but broken out on the board)。ISM 2.4GHz Frequency Band(802.15.4)。1MB of memory， 128KB RAM(32KB available for MicroPython)。20 GPIO Pins。Configurable via X-CTU or AT Command set via both USB and Wirelessly(second XBee 3 device required for wireless configuration unless you're using the mobile app)。Qwiic Compatible。On-board charging circuit and connector for 3.3v Lithium Polymer Ion Batteries(see related products for compatible batteries)。2.6VDC - 3.6VDC supply voltage。U.FL Antenna Connector

Description。The XBee3 Thing Plus is an ultra-capable and easy way for getting into wireless device development. The combination of XBee and Qwiic in a space-conscious design represents a much-needed update to our XBee offering. With 20 I/O pins and Lithium-Polymer Ion battery management， the XBee3 Thing Plus has all the basics for quickly prototyping or developing a connected device such as a remote sensor. The Qwiic connector and JST connector for the battery make for a solder-less option when working with the board which shortens setup time.。The new XBee3 Micro Module provides the classic， near plug and play 802.15.4 2.4GHz wireless connection(Zigbee 3.0 Protocol)that makes it so desirable， but with a new addition of being programmable with MicroPython(32KB of memory available for it). RF data rates up to 250Kbps and 200 ft indoor ranges and up to 4000 ft line-of-sight outdoor range. Communicating with/Configuring the module happens via an AT Command set or the Digi API， X-CTU， both locally or over-the-air. There's even a mobile version of X-CTU now； Digi XBee(R)Mobile.。Note：This variation uses a chip antenna and is not compatible with external antennas.。Get Started With the SparkFun XBee3 Thing Plus Guide。Features。XBee3 Micro Module。Silicon Labs EFR32MG SoC。250Kbps RF， 1Mbps Serial data rates。Indoor/Urban range up to 200 ft(60 m)。Outdoor/RF Line of Sight range up to 4000 ft(1200 m)。+8 dBm transmit power。-103 dBm receiver sensitivity。UART， I2C， SPI Interfaces(SPI currently not available at this time， but broken out on the board)。ISM 2.4GHz Frequency Band(802.15.4)。1MB of memory， 128KB RAM(32KB available for MicroPython)。20 GPIO Pins。Configurable via X-CTU or AT Command set via both USB and Wirelessly(second XBee 3 device required for wireless configuration unless you're using the mobile app)。Qwiic Compatible。On-board charging circuit and connector for 3.3v Lithium Polymer Ion Batteries(see related products for compatible batteries)。2.6VDC - 3.6VDC supply voltage。On-board Chip Antenna

Description。The 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 or。Feather。footprint(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 banks。6 dedicated IO for SPI Flash(supporting XIP)。30 multifunction GPIO：Dedicated hardware for commonly used peripherals。Programmable IO for extended peripheral support。Four 12-bit ADC channels with internal temperature sensor(up to 0.5 MSa/s)。USB 1.1 Host/Device functionality。The 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 Guide。Features。SparkFun Thing Plus - RP2040 Features。Raspberry Pi Foundation's RP2040 microcontroller。16MB QSPI Flash Memory。JTAG PTH Pins。Thing 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 PWM。Up to two UARTs。Up to two I2C buses。Up to two SPI buses。USB-C Connector：USB 1.1 Host/Device functionality。2-pin JST Connector for a LiPo Battery。(not included)。500mA charging circuit。Qwiic Connector。Buttons：Boot。Reset。LEDs：PWR。- Red 3.3V power indicator。CHG。- Yellow battery charging indicator。25。- Blue status/test LED(。GPIO 25。)。WS2812。- Addressable RGB LED(。GPIO 08。)。Four Mounting Holes：4-40 screw compatible。Dimensions：2.3"×0.9"。RP2040 General Features。Dual Cortex M0+ processors， up to 133 MHz。264 kB of embedded SRAM in 6 banks。6 dedicated IO for QSPI flash， supporting execute in place(XIP)。30 programmable IO for extended peripheral support。SWD interface。Timer with 4 alarms。Real time counter(RTC)。USB 1.1 Host/Device functionality。Supported programming languages。MicroPython。C/C++。1.。Note：。GPIO 08。is not included in this count， as it passes through the WS2812 addressable RGB LED first.。GPIO 07。and。GPIO 23。are 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.

Description。The micro：bit v2 Educator's Lab Pack includes 10 micro：bit v2 boards and everything you need to get you started with the new learning platform. The Lab Pack has everything you need， including micro：bits， cables， battery packs and a few parts to experiment with. This package provides an easy way to introduce your students to the micro：bit without any difficulty or parts hunting.。SparkFun packages everything educators need to get started with the micro：bit in a variety of classroom settings and learning environments. The hardware boards， cables and extra parts come pre-packaged. Examples and curriculum materials are available from SparkFun and micro：bit， as well as from other educators involved in this growing maker education movement.。Lab Packs are your classroom entry point. By combining our kits， popular boards and other educational tools with support materials(to be updated)， SparkFun brings all the power of the open source community to the classroom. We've also updated the battery pack to be closer to what is in other micro：bit kits. It now requires 2xAAA batteries.。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!。。Features。Micro：bit 2.0：64 MHz Arm Cortex-M4 with FPU。512KB Flash。128KB RAM。5x5 Red LED Array。Two Programmable Buttons， one touch sensitive logo。MEMS microphone and LED indicator。Onboard Light， Compass， Accelerometer， Temp Sensors and Speaker。2.4 Ghz Micro：bit Radio/BLE 5.0 Smart Antenna。25-pin Edge Connector。4 dedicated GPIO， PWM， i2c， SPI， and ext. power。Three Digital/Analog Input/Output Rings。Two Power Rings --- 3V and GND。Dedcated I2C bus for peripherals。MicroUSB Connector(5V)。JST-PH Battery Connector(。Not。JST-XH)(3V)。Power/reset Button with Status LED。200 mA available for accessories。Program with C++， MakeCode， Python， Scratch

Description。Buttons are an easy and tactile way to interface with your project， but why would you want to deal with debouncing， polling， and wiring up pull-up resistors? The Qwiic Button with built-in green LED simplifies all of those nasty worries away into an easy to use I2C device! Utilizing our Qwiic Connect System， using the button is as simple as connecting cable and loading up some pre-written code!。If you need multiple buttons for your project， fear not! Each button has configurable I2C address， so you can daisy-chain multiple buttons over Qwiic and still address each one individually. We've got an example in our Arduino library that provides super-easy way to configure your Qwiic Button to whatever I2C address you desire. You can download the library through the Arduino library manager by searching 'SparkFun Qwiic Button' or you can get the GitHub repo as .zip file and install the library from there.。In addition to handling blinking and debouncing， the Qwiic Button has configurable interrupts that can be configured to activate upon button press or click. We've also taken the liberty of implementing FIFO queue onboard the Qwiic Button where it keeps an internal record of when the button was pressed. This means that code on your microcontroller need not waste valuable processing time checking the status of the button but instead can run small function whenever the button is pressed or clicked! For more information on interrupts check out our guide here!。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 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 Button Guide。Features。12mm Green LED Button rated for 50mA。Built in LED can be configured for your desired level of blinkiness!。Each button has configurable I2C address。Configurable interrupts check out our guide here!。FIFO queue。Don't like the color green? Check out the SparkFun Qwiic Button Breakout and add another colored button!。Red LED Tactile Button。Blue LED Tactile Button。Green LED Tactile Button。White LED Tactile Button

Description。This is an evaluation board for the Silicon Laboratories Si4703 FM tuner chip. Beyond enabling you to tune in to FM radio stations， the Si4703 is also capable of detecting and processing both Radio Data Service(RDS)and Radio Broadcast Data Service(RBDS)information. The Si4703 even does a very good job of filtering and carrier detection. It also enables data such as the station ID and song name to be displayed to the user.。Using this board， you will be able to pick up multiple stations just as well as with a standard FM radio. The board breaks out all major pins and makes it easy to incorporate this great chip into your next radio project. The power bus， the 3.3V and GND pins are broken out For communication. The breakout provides access to SDIO and SCLK for I2C communication while RST can be used for easy resetting. The SEN pin enables the user to change the mode of functionality of the IC. The last two pins broken out are GPIO1 and GPIO2 which can be used as general input/output pins， but also can be used for things like the RDS ready， seeking or tuning functions.。Keep in mind， by plugging headphones into the 3.5mm audio jack， you effectively use the cable in your headphones as an antenna! Therefore， this board does not require an external antenna if using headphones or a 3.5mm audio cable longer than 3 feet.

Description。Your 5V system can wield great power with this big， beefy relay board. How does 10A on the NC contacts and 20A on the NO contacts at 220VAC sound? The SparkFun Beefcake Relay Control Kit contains all the parts you need to get your high-power load under control. Only minimal assembly is required!。The heart of the board is sealed， SPDT 20A/10A Relay. The relay is controlled by 5V logic through transistor， and an LED tells you when the relay is closed. This is kit， so it comes as through-hole parts with assembly required， which makes for some nice soldering practice. Screw terminal connectors on either side of the board make it easy to incorporate into your project.。There are some pretty beefy traces connecting the relay to the load pins， but the 3-pin terminals are only rated for 15A max! If you plan on connecting larger load， you'll need to solder directly to the board. As always with high current and voltage， play it safe and use your judgment when deciding how much of load you want to put on board -- in open airflow the PCB can handle the full 20A for few minutes at time， but in an enclosed area heat can build up.。Note：Please keep in mind that this board is really meant for someone with experience and good knowledge of electricity. If you're uncomfortable soldering or dealing with high voltage， please check out the IoT Power Relay. The IoT Power Relay is fully enclosed， making it lot safer.。Get Started With the Beefcake Hookup Assembly Guide。Features。Voltage Rating：220VAC/28VDC。VCC requirements：4-6V， 150mA capable。SPDT pins exposed(Form C)。14 AWG screw terminals for relay connections.。10 AWG solder lugs for relay connections.。Flyback diode included。Zener recovery diode included(decreases turn-off time)。Heavy oz. copper on PCB