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DescriptionThe 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 StationGNSS Base Station NTRIP ServerIn 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 GuideFeaturesGNSS Receiver：ZED-F9PConcurrent reception of GPS， GLONASS， Galileo and BeiDouReceives both L1C/A and L2C bandsCurrent：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)- 25HzRTK - 20HzRaw - 25HzHorizontal Position Accuracy：2.5m without RTK0.010m with RTKMax Altitude：50km(31 miles)Max Velocity：500m/s(1118mph)Bluetooth(R)Transceiver：ESP32 WROOMXtensa(R)dual-core 32-bit LX6 microprocessorUp to 240MHz clock frequency16MB of flash storage520kB internal SRAMIntegrated 802.11 BGN WiFi transceiverIntegrated dual-mode Bluetooth(R)(classic and BLE)Hardware accelerated encryption(AES， SHA2， ECC， RSA-4096)2.5 μA deep sleep currentOverall DeviceInternal Battery：LiPo 1000mAh with 500mA chargingRadio 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 Connector1x microSD Socket for optional loggingChanges：This version(which replaces SPX-17369)uses a reinforced edge mount SMA connector for better resiliency when a fixed 'stub' antenna is used.

DescriptionNote - Please read before purchasing!：The MicroMod Asset Tracker uses the "00B" product version of the SARA-R5 module(specifically the SARA-R510M8S-00B-00). LTE NB-IoT Radio Access Technology， and the LTE FDD bands：66， 71， 85 are not suppor

DescriptionThe Elektor MIT App Inventor Bundle is a kit built to help learn about developing apps for Android compatible mobile devices using the MIT App Inventor online development environment. MIT App Inventor projects can be in either standalone mode or use an external processor. In standalone mode， the developed application runs only on the mobile device(e.g. Android). In external processor-based applications， the mobile device communicates with an external microcontroller-based processor， such as Raspberry Pi， Arduino， ESP8266， ESP32， etc.The kit comes with a book and a selection of parts that correspond with a number of projects. Check out the features and Includes tab for more information.FeaturesProjects Include：Using the text-to-speech componentIntonating a received SMS messageSending SMS messagesMaking telephone calls using a contacts listUsing the GPS and Pin-pointing our location on a mapSpeech recognition and speech translation to another languageControlling multiple relays by speech commandsProjects for the Raspberry Pi， ESP32 and Arduino using Bluetooth and Wi-FiMIT APP Inventor and Node-RED projects for the Raspberry Pi

DescriptionThe SparkFun MicroMod Update Tool is built to interface with the MicroMod Asset Tracker Carrier Board and also makes it simple to communicate directly with the u-blox SARA-R510M8S module using u-blox's sophisticated m-center cellular evaluation software. If you're familiar with u-center， u-blox's GNSS evaluation software， you'll know how excellent their software is. m-center is every bit as good. Attach a USB-C cable and away you go!The Update Tool is not a full MicroMod Processor Board， it is much simpler than that. It has a CH340C USB-Serial converter on it which gives you full access to all eight pins of the SARA-R5's UART interface via the Asset Tracker's USB-C connector. Think of it as a bridge from USB to serial.The Update Tool features eight pairs of Plated Through Hole connections for the UART signals. You can use these to connect directly to the SARA UART using 3.3V signals if you want to. The split pads on the rear of the Tool can be opened to isolate the CH340C completely； the pins nearest the M.2 will link straight to the SARA UART.Get Started with the MicroMod Update Tool Hookup GuideFeaturesCH340C USB-Serial converterEight pairs of Plated Through Hole connections with split pad jumper links for：Serial Transmit(TX)Serial Receive(RX)Request To Send(RTS)Clear To Send(CTS)Data Terminal Ready(DTR)Data Set Ready(DSR)Ring Indicator(RI)Data Carrier Detect(DCD)LED indicator for：Power(3.3V)

DescriptionThis is a two pack of #502 PCB engravers from Carbide 3D for your Shapeoko or Nomad CNC machine to supply you with even more fabrication and milling options. Each PCB engraver possesses a 0.005" ball tip with a 0.0025" radius， a 40 degree tip angle， and is made of solid carbide to ensure long lasting use.If you are wondering how best to utilize this kit， make sure to check out the free to use web app， Carbide Copper. Carbide Copper is CAM software to let you mill PCBs with your CNC machine and is the fastest way to make same-day circuit boards in your own office or shop.Note：It is recommended to use this PCB engraver with FR1 copper clad rather than FR4 to ensure you give your tool bit the longest life possible.Features0.005" Ball tip(0.0025" radius)40 Degree Tip Angle0.125" Shank2 FlutesSolid Carbide

DescriptionProduct 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 includesasymmetricauthentication，symmetricAES-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 GCMCreating 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/restoreInternal 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 isPERMANENTLYlocked. It is advisable that users purchase multiple boards in order to use other configurations and explore the advanced functions of the ATECC608A.Additionally， this boardIScapable 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.FeaturesOperating Voltage：2.0V-5.5V(Default on Qwiic System：3.3V)Active Current Draw(for ATECC608A)：16 mASleep Current(for ATECC608A)：<150 nAGuaranteed Unique 72-bit Serial Number10 Kb EEPROM Memory for Keys， Certificates， and DataStorage for up to 16 Keys256-bit Key LengthInternal High-Quality FIPS Random Number Generator(RNG)Configurable I2C Address(7-bit)：0x60(Default)

DescriptionThe SparkFun RV-8803 Real Time Clock Module is a Qwiic-enabled breakout board for the RV-8803 RTC. The RV-8803 boasts some impressive features including a temperature compensated crystal providing extremely precise time-keeping， low power consumption， and time stamp event input along with a user-programmable timing offset value. The RV-8803 also has an improved I2C interface compared to the RV-1805 RTC that removes the need to sequence commands/writes to the device. Best of all， the temperature compensation comes factory calibrated. Utilizing our handy Qwiic system so 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.Adding a real-time clock to your project is the perfect way to get more accurate data； timing or otherwise. Using the Qwiic connector makes for a fast， solid way to incorporate this into your project. The RTC module has counters for hundredths of seconds， seconds， minutes， hours， date， month， year and weekday with a number of alarm and interrupt settings available as well. Plus the large operating temperature range(-40 to +105℃)and temperature compensated crystal makes for a good addition for field applications or harsh environments.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 RV-8803 Real Time Clock Module GuideFeaturesFactory Calibrated Temperature CompensationHigh Time Accuracy±1.5 ppm 0 to +50℃±3.0 ppm -40 to +85℃±7.0 ppm +85 to +105℃1.5V to 5.5V Operating Voltage Range240nA @ 3.3v Low-Power ConsumptionI2C Address：0x32Periodic Countdown Timer Interrupt functionPeriodic Time Update Interrupt function(seconds， minutes)Alarm Interrupts for weekday or date， hour and minute settingsExternal Event Input with Interrupt and Time Stamp functionProgrammable Clock Output pin for peripheral devices.Operating temperature range：-40 to +105℃2x Qwiic Connectors

DescriptionThis is a two pack of #501 PCB engravers from Carbide 3D for your Shapeoko or Nomad CNC machine to supply you with even more fabrication and milling options. Each PCB engraver possesses a 0.1" ball tip with a 0.005" radius， a 60 degree tip angle， and is made of solid carbide to ensure long lasting use.If you are wondering how best to utilize this kit， make sure to check out the free to use web app， Carbide Copper. Carbide Copper is CAM software to let you mill PCBs with your CNC machine and is the fastest way to make same-day circuit boards in your own office or shop.Note：It is recommended to use this PCB engraver with FR1 copper clad rather than FR4 to ensure you give your tool bit the longest life possible.Features0.00" Ball tip(0.005" radius)60 Degree Tip Angle0.125" Shank2 FlutesSolid Carbide

DescriptionKeypads are very handy input devices， but who wants to tie up seven GPIO pins， wire up handful of pull-up resistors， and write firmware that wastes valuable processing time scanning the keys for inputs? The SparkFun Qwiic Keypad comes fully assembled and makes the development process for adding 12 button keypad easy. No voltage translation or figuring out which I2C pin is SDA or SCL， just plug and go! 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 breadboard.Each of the keypad's 12 buttons has been labeled 1， 2， 3， 4， 5， 6， 7， 8， 9， 0， *， and and has been formatted to into the same layout as telephone keypad with each keypress resistance ranging between 10 and 150 Ohms. The Qwiic Keypad reads and stores the last 15 button presses in First-In， First-Out(FIFO)stack， so you don't need to constantly poll the keypad from your microcontroller. This information， then， is accessible through the Qwiic interface. The SparkFun Qwiic Keypad even has software configurable I2C address so you can have multiple I2C devices on the same bus.NOTE：The I2C address of the Qwiic Keypad is 0x4B and is jumper selectable to 0x4A(software-configurable to any address). multiplexer/Mux is required to communicate to multiple Qwiic Keypad sensors on single bus. If you need to use more than one Qwiic Keypad 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 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 Keypad Hookup GuideFeaturesSoftware Selectable Slave AddressLow Power ATtiny85 controllerButton Presses w/ Time StampDefault I2C Address：0x4B2x Qwiic Connector