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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。This is a small 12mm round speaker that operates around the audible 2kHz range. You can use these speakers to create simple music or user interfaces.。This is not a true piezoelectric speaker but behaves similarly. Instead of a piezoelectric crystal that vibrates with an electric current， this tiny speaker uses an electromagnet to drive a thin metal sheet. That means you need to use some form of alternating current to get sound. The good news is that this speaker is tuned to respond best with a square wave(e.g. from a microcontroller).

Description。The SparkFun Inventor's Kit(SIK)for micro：bit v2 is a great way to get creative， connected and coding with the micro：bit. The SIK for micro：bit v2 provides not only the micro：bit v2 board but everything you need to hook up and experiment with multiple electronic circuits! With the SIK for micro：bit v2 you will be able to complete circuits that will teach you how to read sensors， move motors， build Bluetooth(R)devices and more.。The SparkFun Inventor's Kit for micro：bit is the latest and greatest in single-board computer kits. Surrounding the micro：bit v2 SIK is one core philosophy --- that anyone can(and should)experiment with cutting-edge electronics in a fun and playful way without breaking the bank.。The kit does not require any soldering and is recommended for all users， from beginners to engineers. We have provided a complete Experiment Guide in the Documents tab for you to check out now! If you have ever been interested in learning about electronics， or if you have used the original SparkFun Inventor's Kit and are looking for something new， the SIK for micro：bit is the perfect kit for you!。The micro：bit is a pocket-sized computer that lets you get creative with digital technology. Between the micro：bit and our shield-like bit boards you can do almost anything while coding， customizing and controlling your micro：bit from almost anywhere! You can use your micro：bit for all sorts of unique creations， from robots to musical instruments and more. At half the size of a credit card， this versatile board has vast potential!。。Examples。Circuit 0：Hello， micro：bit!。Circuit 1：Blinking an LED。Circuit 2：Reading a Potentiometer。Circuit 3：Reading a Photoresistor。Circuit 4：Driving an RGB LED。Circuit 5：Reading an SPDT Switch。Circuit 6：Reading a Button Press。Circuit 7：Reading the Temperature Sensor。Circuit 8：Using a Servo Motor。Circuit 9：Using a Buzzer。Circuit 10：Using the Accelerometer。Circuit 11：Using the Compass

Description。The MS8607 from TE is an impressive combination pressure， humidity， temperature(PHT)sensor with accuracy of ±2mbar pressure， ±3% humidity， and ±1℃. Perfect for sensing general weather conditions the MS8607 really shines for high altitude， low pressure applications. Capable of sensing down to 10mbar， this pressure sensor separates itself from many other I2C pressure sensors like the BME280. The MS8607 is simple to use and gives the user some very powerful readings with very little power and conversion time.。Hook up is a breeze with as the breakout board is using the Qwiic connect system. We have a fully formed Arduino library and extensive examples to get you up and running quickly. The breakout board has built-in 2.2kΩ pullup resistors for I2C communications. If you're hooking up multiple I2C devices on the same bus， you may want to disable these resistors.。The MS8607 PHT Sensor can also be automatically detected， scanned， configured， and logged using the OpenLog Artemis datalogger system. No programming， soldering， or setup required!。NOTE：The I2C address of the Pressure Sensor Portion is 0x76 and is hardware defined. The I2C address of the Humidity Sensor Portion is 0x40 and is hardware defined. A multiplexer/Mux is required to communicate to multiple MS8607 sensors on a single bus. If you need to use more than one MS8607 sensor consider using the Qwiic Mux Breakout.。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。Operating Range：10 - 2000mbar。0 - 100% Humidity。-40 - 85℃。Accuracy(at 25℃)：±2mbar pressure。±3% humidity。±1℃。Resolution：0.016 mbar。0.04 % Humidity。0.01 C。Supply Current(1Hz， 1024 OSR)：0.78uA。Standby Current：0.03uA。Conversion Time(PHT)：4ms

Description。The LilyPad ProtoSnap Plus is a sewable electronics prototyping board that you can use to explore circuits and programming， then break apart to make an interactive fabric or wearable project. Programming the ProtoSnap Plus is easy with the free Arduino software you'll need to program the ATmega32U4 on LilyPad USB Plus at the heart of the board. Once you've installed the software， you'll be able to write and upload your own programs to the board， making it do almost anything you want.。At the center of the ProtoSnap Plus is the LilyPad USB Plus microcontroller， pre-wired to a LilyPad board including a LilyPad Light Sensor， LilyPad Buzzer， LilyPad Button Board， four pairs of colored LilyPad LEDs and a LilyPad Slide Switch. Because these components are connected together on the ProtoSnap board， you can test out your project ideas before you sew. The ProtoSnap Plus also includes expansion ports that let you sew your wearables together or use alligator cables to easily connect external sensors and components. After testing out your coding ideas using the attached LilyPad pieces， you can break apart the prototyping board and sew them into your project!。Please be aware that the Lilypad ProtoSnap Plus is。NOT supported on Windows 7/8。due to a lack of support drivers for those specific OS's.。Note：。A portion of this sale is given back to Dr. Leah Buechley for continued development and education in e-textiles.。Get Started with the LilyPad ProtoSnap Plus Guide

。Grove - Wrapper is a kind of wrapper to fix and protect Grove modules. It will save you a lot of work on aligning your modules、and it will easy for you to show your project. For example、it will simpler to take pictures for showing your product on the Internet、and it will give a clear and clean scene if you use Grove - Wrapper to demo your project. What is more、it is expandable for Lego、mechanical parts、and so on、this will introduce flavor into your work and make your project adapt to various circumstances. The mechanical design of Grove - Wrapper also make it easy to assemble and disassemble modules.。Notethat around 85% of all Grove modules are supported by Grove - Wrapper.。Features。Flex fastener to install and replace Grove modules conveniently.。Always keep your project safe.。Half-open space、no disruption for using Grove modules.。Compatible with Lego and Makeblock modules that will make your project adapting and interesting.。Support being fastened with screws(M2、M4).。Mutual-connect-able like Lego modules does.。Colorful wrappers.。Specification。Dimension(big one)：50×25×13 mm。Plane dimension(small one)：25 ×25×13 mm。Material：ABS

Grove - Wrapper is a kind of wrapper to fix and protect Grove modules. It will save you a lot of work on aligning your modules、and it will easy for you to show your project. For example、it will simpler to take pictures for showing your product on the Internet、and it will give a clear and clean scene if you use Grove - Wrapper to demo your project. What is more、it is expandable for Lego、mechanical parts、and so on、this will introduce flavor into your work and make your project adapt to various circumstances. The mechanical design of Grove - Wrapper also make it easy to assemble and disassemble modules.。Notethat around 85% of all Grove modules are supported by Grove - Wrapper.。Features。Flex fastener to install and replace Grove modules conveniently.。Always keep your project safe.。Half-open space、no disruption for using Grove modules.。Compatible with Lego and Makeblock modules that will make your project adapting and interesting.。Support being fastened with screws(M2、M4).。Mutual-connect-able like Lego modules does.。Colorful wrappers.。Specification。Dimension(big one)：50×25×13 mm。Plane dimension(small one)：25 ×25×13 mm。Material：ABS

Grove - Wrapper is a kind of wrapper to fix and protect Grove modules. It will save you a lot of work on aligning your modules、and it will easy for you to show your project. For example、it will simpler to take pictures for showing your product on the Internet、and it will give a clear and clean scene if you use Grove - Wrapper to demo your project. What is more、it is expandable for Lego、mechanical parts、and so on、this will introduce flavor into your work and make your project adapt to various circumstances. The mechanical design of Grove - Wrapper also make it easy to assemble and disassemble modules.。Notethat around 85% of all Grove modules are supported by Grove - Wrapper.。Features。Flex fastener to install and replace Grove modules conveniently.。Always keep your project safe.。Half-open space、no disruption for using Grove modules.。Compatible with Lego and Makeblock modules that will make your project adapting and interesting.。Support being fastened with screws(M2、M4).。Mutual-connect-able like Lego modules does.。Colorful wrappers.。Specification。Dimension(big one)：50×25×13 mm。Plane dimension(small one)：25 ×25×13 mm。Material：ABS

Grove - Wrapper is a kind of wrapper to fix and protect Grove modules. It will save you a lot of work on aligning your modules、and it will easy for you to show your project. For example、it will simpler to take pictures for showing your product on the Internet、and it will give a clear and clean scene if you use Grove - Wrapper to demo your project. What is more、it is expandable for Lego、mechanical parts、and so on、this will introduce flavor into your work and make your project adapt to various circumstances. The mechanical design of Grove - Wrapper also make it easy to assemble and disassemble modules.。Notethat around 85% of all Grove modules are supported by Grove - Wrapper.。Features。Flex fastener to install and replace Grove modules conveniently.。Always keep your project safe.。Half-open space、no disruption for using Grove modules.。Compatible with Lego and Makeblock modules that will make your project adapting and interesting.。Support being fastened with screws(M2、M4).。Mutual-connect-able like Lego modules does.。Colorful wrappers.。Specification。Dimension(big one)：50×25×13 mm。Plane dimension(small one)：25 ×25×13 mm。Material：ABS

。Grove - Wrapper is a kind of wrapper to fix and protect Grove modules. It will save you a lot of work on aligning your modules、and it will easy for you to show your project. For example、it will simpler to take pictures for showing your product on the Internet、and it will give a clear and clean scene if you use Grove - Wrapper to demo your project. What is more、it is expandable for Lego、mechanical parts、and so on、this will introduce flavor into your work and make your project adapt to various circumstances. The mechanical design of Grove - Wrapper also make it easy to assemble and disassemble modules.。Notethat around 85% of all Grove modules are supported by Grove - Wrapper.。Features。Flex fastener to install and replace Grove modules conveniently.。Always keep your project safe.。Half-open space、no disruption for using Grove modules.。Compatible with Lego and Makeblock modules that will make your project adapting and interesting.。Support being fastened with screws(M2、M4).。Mutual-connect-able like Lego modules does.。Colorful wrappers.。Specification。Dimension(big one)：50×25×13 mm。Plane dimension(small one)：25 ×25×13 mm。Material：ABS

Grove - Wrapper is a kind of wrapper to fix and protect Grove modules. It will save you a lot of work on aligning your modules、and it will easy for you to show your project. For example、it will simpler to take pictures for showing your product on the Internet、and it will give a clear and clean scene if you use Grove - Wrapper to demo your project. What is more、it is expandable for Lego、mechanical parts、and so on、this will introduce flavor into your work and make your project adapt to various circumstances. The mechanical design of Grove - Wrapper also make it easy to assemble and disassemble modules.。Notethat around 85% of all Grove modules are supported by Grove - Wrapper.。Features。Flex fastener to install and replace Grove modules conveniently.。Always keep your project safe.。Half-open space、no disruption for using Grove modules.。Compatible with Lego and Makeblock modules that will make your project adapting and interesting.。Support being fastened with screws(M2、M4).。Mutual-connect-able like Lego modules does.。Colorful wrappers.。Specification。Dimension(big one)：50×25×13 mm。Plane dimension(small one)：25 ×25×13 mm。Material：ABS

Description。The SCD30 from Sensirion is a high quality Nondispersive Infrared(NDIR)based CO2 sensor capable of detecting 400 to 10000ppm with an accuracy of ±(30ppm+3%). In order to improve accuracy the SCD30 has temperature and humidity sensing built-in， as well as commands to set the current altitude. For additional accuracy the SCD30 also accepts ambient pressure readings!。We've written an Arduino library to make reading the CO2， humidity， and temperature very easy. It can be downloaded through the Arduino Library manager：search for 'SparkFun SCD30' or it can be found in the。Documents。tab above.。The SCD30 Humidity and Temperature Sensor can also be automatically detected， scanned， configured， and logged using the OpenLog Artemis datalogger system. No programming， soldering， or setup required!。Note：The SCD30 has an automatic self-calibration routine. Sensirion recommends 7 days of continuous readings with at least 1 hour a day of 'fresh air' for self-calibration to complete.。Features。Power supply voltage：3.3V - 5.5V。NDIR CO2 sensor technology。Integrated temperature and humidity sensor。Best performance-to-price ratio。Dual-channel detection for superior stability。Small form factor：35 mm×23 mm×7 mm。Measurement range：400 ppm - 10.000 ppm。Accuracy：±(30 ppm + 3%)。Current consumption：19 mA @ 1 meas. per 2 s.。Energy consumption：120 mJ @ 1 measurement。Fully calibrated and linearized。Digital interface UART or I2C

。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。Product Restrictions：To access certain features of the ATECC608A， users will need to contact Microchip and sign an NDA contract to obtain the complete datasheet. Due to the required NDA - technical support， an Arduino library， and hookup guide are not provided for users on this product.。The SparkFun ATECC608A Cryptographic Co-processor Breakout allows you to add strong security to your IoT node， edge device， or embedded system. This includes。a。symmetric。authentication，。symmetric。AES-128 encryption/decryption， and much more. As stated above， the ATECC608A has limited Arduino support and the complete datasheet is under NDA with Microchip.。This breakout board includes two Qwiic ports for plug and play functionality. Utilizing our handy Qwiic system， no soldering is required to connect it to the rest of your system. However， we still have broken out 0.1"-spaced pins in case you prefer to use a breadboard. The ATECC608A chip is capable of many cryptographic processes， including， but not limited to：Creating and securely storing unique asymmetric key pairs based on Elliptic Curve Cryptography(FIPS186-3).。AES-128：Encrypt/Decrypt， Galois Field Multiply for GCM。Creating and verifying 64-byte digital signatures(from 32-bytes of message data).。Creating a shared secret key on a public channel via Elliptic Curve Diffie-Hellman Algorithm.。SHA-256 HMAC Hash including off-chip context save/restore。Internal high quality FIPS random number generator.。Embedded in the chip is a 10Kb EEPROM array that can be used for storing keys， certificates， data， consumption logging， and security configurations. Access to the sections of memory can then be restricted and the configuration locked to prevent changes. Each ATECC608A Breakout ships with a guaranteed unique 72-bit serial number and includes several security features to prevent physical attacks on the device itself， or logical attacks on the data transmitted between the device.。A summary datasheet for the ATECC608A is available here. The full datasheet is under NDA with Microchip. You will need to contact them for access to the entire datasheet. Meanwhile， the ArduinoATECCX08 Library currently only supports the ATECC608A with SAMD21 Arduino boards.。We do have much more support for the ATECC508A version of this chip. Please check out our ATECC508A Hookup Guide and Arduino Library(which includes six examples). This will get you familiar with the basics of elliptic curve cryptography and signing/verifying data with the ATECC508A version of the chip.。Note：The I2C address of the ATECC608A is 0x60 and is software-configurable to any address. A multiplexer/Mux is required to communicate to multiple ATECC608A sensors at the default address when on a single bus. If you need to use more than one ATECC608A sensor at the default address， consider using the Qwiic Mux Breakout.。Note：The ATECC608A can be only configured once before it is。PERMANENTLY。locked。. It is advisable that users purchase multiple boards in order to use other configurations and explore the advanced functions of the ATECC608A.。Additionally， this board。IS。capable of encrypting and decrypting data. However， to access these additional features， you will need to contact Microchip and sign an NDA contract to obtain the complete datasheet.。It is recommended that an SparkFun RedBoard Turbo - SAMD21 Development Board is used with this product due to the buffer size required on the I2C bus.。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。Operating Voltage：2.0V-5.5V(。Default on Qwiic System：3.3V。)。Active Current Draw(for ATECC608A)：16 mA。Sleep Current(for ATECC608A)：<150 nA。Guaranteed Unique 72-bit Serial Number。10 Kb EEPROM Memory for Keys， Certificates， and Data。Storage for up to 16 Keys。256-bit Key Length。Internal High-Quality FIPS Random Number Generator(RNG)。Configurable I2C Address(7-bit)：0x60(。Default。)

Description。The SparkFun ZOE-M8Q GPS Breakout is a high accuracy， miniaturized， GPS board that is perfect for applications that don't possess a lot of space. The on-board ZOE-M8Q is a 72-channel GNSS receiver， meaning it can receive signals from the GPS， GLONASS， BeiDou， and Galileo constellations. This increases precision and decreases lock time and thanks to the onboard rechargable battery you'll have backup power enabling the GPS to get a hot lock within seconds! Additionally， this u-blox receiver supports I2C(u-blox calls this Display Data Channel)which made it perfect for the Qwiic compatibility so we don't have to use up our precious UART ports. Utilizing our handy Qwiic system， no soldering is required to connect it to the rest of your system. However， we still have broken out 0.1"-spaced pins in case you prefer to use a breadboard.。U-blox based GPS products are configurable using the popular， but dense， windows program called u-center. Plenty of different functions can be configured on the ZOE-M8Q：baud rates， update rates， geofencing， spoofing detection， external interrupts， SBAS/D-GPS， etc. All of this can be done within the SparkFun Arduino Library. We've also made sure to configure the UART pin grouping on the breakout to an industry standard to insure that it easily connects to a Serial Basic.。The SparkFun ZOE-M8Q GPS Breakout is also equipped with an on-board rechargeable battery that provides power to the RTC on the ZOE-M8Q. This reduces the time-to-first fix from a cold start(～30s)to a hot start(～1s). The battery will maintain RTC and GNSS orbit data without being connected to power for up to five hours. Since the ZOE-M8Q is a tiny GPS receiver and to minimize its footprint， we've added a U.FL connector to allow the use of both large standard ceramic antennas as well as very small chip scale antennas.。Note：The I2C address of the ZOE-M8Q is 0x42 and is software configurable. A multiplexer/Mux is required to communicate to multiple ZOE-M8Q sensors on a single bus. If you need to use more than one ZOE-M8Q sensor consider using the Qwiic Mux Breakout.。The SparkFun Qwiic Connect System is an ecosystem of I2C sensors， actuators， shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch， 4-pin JST connector. This reduces the amount of required PCB space， and polarized connections mean you can't hook it up wrong.。The ZOE-M8Q GPS Breakout can also be automatically detected， scanned， configured， and logged using the OpenLog Artemis datalogger system. No programming， soldering， or setup required!。Get Started With the SparkFun ZOE-M8Q Hookup Guide。Features。72-Channel GNSS Receiver。2.5m Horizontal Accuracy。18Hz Max Update Rate。Time-To-First-Fix：Cold：26s。Hot：1s。Max Altitude：50，000m。Max G：≦4。Max Velocity：500m/s。Velocity Accuracy：0.05m/s。Heading Accuracy：0.3 degrees。Time Pulse Accuracy：30ns。3.3V VCC and I/O。Current Consumption：～29mA Tracking GPS+GLONASS。Software Configurable。Geofencing。Odometer。Spoofing Detection。External Interrupt。Pin Control。Low Power Mode。Many others!。Supports NMEA， UBX， and RTCM protocols over UART or I2C interfaces

Description。The Basys MX3 is no longer in production. Once the current stock is depleted， it will be discontinued.The Basys MX3 is a true MCU trainer board designed from the ground up around teaching embedded systems. Featuring the PIC32MX370 from Microchip plus an exhaustive set of peripherals， students gain exposure to a wide range of embedded systems related concepts while using a professional grade tool set. Adoption is made easy by the accompanying free and open-source coursework， including 7 in-depth teaching units and 15 complete labs. The Basys MX3 is a versatile MCU trainer board ideal for teaching introductory embedded systems courses， or for any engineer looking to become familiar with PIC32 and Microchip toolsets.Also see our associated Basys MX3 Lab Bundle!。Features。Microchip PIC32MX370F512L Microcontroller。〇MIPS32 M4K core runs up to 96 MHz using onboard 8 MHz oscillator。〇512 KB of Program Flash Memory。〇12KB of Boot Flash Memory。〇128 KB of SRAM。〇Four Direct Memory Access(DMA)Modules。〇Two SPI， Two IC， and Five UART serial interfaces。〇Parallel Master Port(PMP)for graphics interfaces。〇Five 16-bit Timers/Counters。〇Five Input Capture Modules。〇Five Output Compare Modules。〇85 I/O pins。54 pins support Peripheral Pin Select(PPS)for function remapping。System Features。〇4 MB SPI Flash。〇Onboard USB UART(USB Micro cable required， NOT INCLUDED)。Supports baud rates up to 1.25 MBaud。〇Powered from USB or 5V external power source。System Connectivity。〇USB-UART Bridge。Interaction and Sensory Devices。〇8 Slide Switches， 5 Buttons， 1 Reset Button，8 LEDs，1 RGB LED。〇Onboard 3-axis， 12-bit accelerometer。Programmable Motion Detection。I2C Interface with Programmable Interrupt。〇Onboard FIR-compatible IrDA Module。Built-in Remote Control Transmission Function。Supports speeds up to 4 Mbps。Onboard Audio Input and Output。MEMS Microphone with Adjustable Gain。Thumbwheel potentiometer for adjusting mic volume。PWM driven mono audio output with onboard speaker。Thumbwheel potentiometer for adjusting speaker volume。3.5 mm jack for line out connection to external amplifier/speaker system。〇Onboard Displays。2x16 LCD Character Display with LED backlight。4-Digit Seven Segment Display with red LEDs。Motor Control。〇Onboard Dual H-Bridge Motor Driver。Supports up to two 1.5 A Brushed DC Motors or one stepper motor。Supports motor voltages up to 11 V。Terminal block provides easy connection to motors。〇2 Servo Connectors。Analog Input Control(AIC)。〇Thumbwheel potentiometer for varying analog input between 0 to 3.3 V。〇Two wire loops for ground and AIC。Expansion Connectors。〇Two 2×6 Pmod host ports。〇Terminal block for two DC motors or one stepper motor。〇Two R/C servo connectors。〇One I2C connector。Debugging。〇On-board 30-pin Analog Discovery 2 connector。〇On-board USB programmer/debugger。Program/debug the PIC32MX370 directly from MPLAB / MPLABX。Support。〇7 free and open-source teaching units complete with 15 labs(link available in the Support Materials tab)。〇Enough content to support one to two semesters of undergraduate embedded systems coursework

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.