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。Description。These headers are made to work with the Teensy 4.1， Teensy 3.6， and Teensy 3.5 development boards. Each set of headers allows for your Teensy to be easily incorporated into a breadboard circuit or attach a shield on top of the board. This kit includes three headers(two 24-pin， and one 5-pin)， enough to connect your chosen Teensy in any configuration you need!

Description。These Clincher connectors from Amphenol FCI can be used to terminate Flat Flexible Cables(FFCs)to an easy-to-use standard header. Simply insert the end of the cable into the connector and press it closed. The teeth inside the connector will "clinch" around the conductors and break them out to three male 0.1" spaced pin headers!。Though the Clincher connector can be used with FFCs， we also like to use them with our FlexiForce sensors and other flex/force sensors found in the。Recommended Products。section below.。Note：。Please be aware that we will not be able to accept returns on this connector if it has been closed. Sorry for any inconvenience this may cause.

Description。This is a piezoresistive force sensor from Tekscan. The harder you press， the lower the sensor's resistance. Pressing hard， the resistance changes from infinite to ～300k. The sensor itself is thin and flexible， but the resistance does not change while being flexed. Resistance changes only when pressure is applied to the round area at the end of the sensor. Used as a presence sensor(someone standing)， weight sensor， pressure sensor(impact testing)， etc.。The overall length is about 8.5". Sensor comes with 0.1" spaced， reinforced， breadboard friendly connector.。This sensor comes in three flavors. This sensor ranges from 0 to 25lbs of pressure.

These 5mm units have four pins - Cathode is the longest pin. One for each color and a common cathode. Use this one LED for three status indicators or pulse width modulate all three and get mixed colors!。Note。As of 1/2010、the pins in the datasheet ar

Description。This is 12 meters of smooth conductive thread spun from stainless steel fiber and wound on a plastic bobbin. Use it to sew up all of your e-textile projects. This small bobbin is a great way to get into wearable electronics without the upf

。Description。This is a foot-long white audio cable that has been terminated with two TRRS connectors at each end. TRRS connectors are the 3.5mm audio-style connectors that you see on some phones， MP3 players and development boards. TRRS stands for "Tip， Ring， Ring， Sleeve，" which reflects the fact that， unlike a standard stereo connector， this actually has three conductors and a ground. Some devices use the extra conductor for a microphone(as in hands-free headsets)or to carry a video signal(as in some MP3/MP4 players). If you're hacking on something that has a 4-conductor audio jack， being able to plug straight in will keep your build clean and simple.。We use and recommend this specific audio cable for our Spectacle product line.。Features。1ft long(30.5 cm)

Description。TRRS connectors are the audio-style connectors that you see on some phones， MP3 players and development boards. TRRS stands for "Tip， Ring， Ring， Sleeve，" which reflects the fact that， unlike a standard stereo connector， this actually has three conductors and a ground. Some devices use the extra conductor for a microphone(like hands-free headsets)or to carry a video signal(like in some MP3/MP4 players). If you're hacking on something that has a 4-conductor audio jack， being able to plug straight in will keep your build clean and simple.。Note：。This plug allows you to add a custom length of wire to your connector or repair a broken shroud on an existing cable you just cannot live without. Unfortunately， the supplier has not provided a datasheet or dimensional drawing please see the similar documents provided by other SparkFun products on the "documents" tab.

。Description。The 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 Guide。Features。CH340C USB-Serial converter。Eight 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)

。Description。The SparkFun Continuous Rotation(CR)Servo Trigger is a small robotics board that simplifies the control of hobby RC servo motors. When an external switch or logic signal changes state， the CR Servo Trigger is able to tell an attached servo motor to move from position A to position B. To use the CR Servo Trigger， you simply connect a hobby servo and a switch， then use the on-board potentiometers to adjust the start/stop positions and the transition time. You can use a hobby servo in your projects without having to do any programming!。When we introduced the original Servo Trigger， we mentioned that it could be reprogrammed to be more useful with continuous rotation servo motors. But reprogramming the firmware is somewhat tedious， and users asked for a Servo Trigger preprogrammed with the continuous rotation logic. With this little board you will be provided an easy way to deploy continuous rotation servos into your projects!。The heart of the CR Servo Trigger is an Atmel ATtiny84 microcontroller， running a small program that implements the servo control features designed for continuous rotation servos. On board each of these CR Servo Triggers you will find three potentiometers："A" sets the position the servo sits in while the switch is open， "B" sets the position the servo moves to when the switch is closed， and "T" sets the time it takes to get from A to B and back.。Compared with a servo motor， the CR Servo Trigger board draws very little current， roughly 5mA at 5V. Be sure to note that if you're using the CR Servo Trigger to control your motor， the absolute maximum supply voltage that should be applied is 5.5 VDC. Additionally， the SparkFun CR Servo Trigger is designed to make it easy to daisy chain boards - you can simply connect the VCC and GND pads on adjacent boards to each other.。Note：This idea originally came from our friend in the Oakland area， CTP. If you see him， please give him a high-five for us.。SparkFun CR Servo Trigger Hookup Guide。Features。Recommended Voltage：5VDC。Max Voltage：5.5VDC。Current Draw：5mA。Control Continuous Rotation Servos。Three Control Settings。A - sets the position the servo sits in while the switch is open。B - sets the position the servo moves to when the switch is closed。C - sets the time it takes to get from A to B and back。Easy Control with Potentiometers。Configurable Input Polarity。Configurable Response Mode。Compatible with Analog Servos。ISP Header Pins Available for Reprogram

Description。The SparkFun MicroMod Environmental Function Board adds additional sensing options to the MicroMod Processor Boards. This Function Board includes three sensors to monitor air quality(SGP40)， humidity temperature(SHTC3)， and CO2 concentrations(STC31)in your indoor environment. To make it even easier to use， all communication is over the MicroMod's I2C bus!。The SGP40 measures the quality of the air in your room or house. The SGP40 uses a metal oxide(MOx)sensor with a temperature controlled micro hotplate and provides a humidity-compensated volatile organic compound(VOC)based indoor air quality signal. Both the sensing element and VOC Algorithm feature an unmatched robustness against contaminating gases present in real world applications enabling a unique long term stability as well as low drift and device to device variation.。The SHTC3 is a highly accurate digital humidity and temperature sensor. The SHTC3 uses a capacitive humidity sensor with a relative humidity measurement range of 0 to 100% RH and bandgap temperature sensor with a temperature measurement range of -40℃ to 125℃. The SHTC3 builds on the success of their SHTC1 sensor with higher accuracy(±2% RH， ±0.2℃)than its predecessor， enabling greater flexibility.。The STC31 measures CO2 concentrations based on thermal conductivity and has two CO2 measurement ranges：0 to 25 vol%； and 0 to 100 vol%. The measurement repeatability is 0.2 vol%， with a stability of 0.025 vol% / ℃. The measurement accuracy depends on the measurement range：0.5 vol% + 3% measured value； 1 vol% + 3% measured value. Using measurements from the SHTC3， the STC31 is able to provide humidity-compensated measurements together with improved temperature compensation. The STC31 can compensate for atmospheric pressure too - which is handy if， like us， you're up in the mountains!。The outstanding performance of these three sensors is based on Sensirion's patented CMOSens(R)technology， which combines the sensor element， signal processing， and digital calibration on a small CMOS chip. The well-proven CMOS technology is perfectly suited for high-quality mass production and is the ideal choice for demanding and cost-sensitive OEM applications.。Utilizing our handy M.2 MicroMod connector， no soldering is required to connect it to your system. Simply match up the key on your processor and function board's beveled edge connector to their respective key on the M.2 connector， then secure them to the main board with screws. The MicroMod Environmental Function Board can then be read via the I2C port. The board is equipped with the AP2112 3.3V voltage regulator， I2C pull-up resistors， power LED， jumper to disable the LED， and jumpers for alternative STC31 addresses.。Note：A MicroMod Processor and Main Board are not included with this MicroMod Environmental Function Board. These boards will need to be purchased separately.。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 and function boards on the fly. Pair a specialized carrier board for the project you need with your choice of compatible processor!。Get Started with the MicroMod Environmental Function Board。Features。Input voltage range。2.5V to 6.0V。Typ.。5V。via Main Board's USB connector。Typ.。～3.7V to 4.2V。via Main Board's LiPo battery Connector。I/O voltage。3.3V。AP2112 3.3V voltage regulator(rated 600mA)。Power LED。I2C pull-up resistors。Sensirion SGP40 Air Quality Sensor。Uses I2C interface。Address：0x59(default)。Operating voltage range。1.7V to 3.6V(Typ.。3.3V。)。Operating temperature range。-20℃ to +55℃。Typical current consumption。2.6mA。during continuous operation(at 3.3V)。34μA。when idle(heater off)。Output signal。Digital raw value(SRAW)：0 - 65535 ticks。Digital processed value(VOC Index)：0 - 500 VOC index points。Switch-on behavior。Time until reliably detecting VOC events：<60s。Time until specifications are met：<1h。Recommended sampling interval。VOC Index：1s。SRAW：0.5s - 10s(Typ. 1s)。Sensirion SHTC3 Humidity and Temperature Sensor。Uses I2C interface。Address：0x70(default， non-configurable)。Operating voltage range。1.62V - 3.6V(Typ.。3.3V。)。Operating temperature range。-40℃ to +125 ℃。Relative Humidity。Measurement range：0% to 100%。Typical accuracy：±2 %RH。Resolution：0.01 %RH。Temperature。Measurement range：-40℃ to +125 ℃。Typical accuracy：±0.2 ℃。Resolution：0.01 ℃。Typical current consumption(varies based on mode)。4.9μA to 430μA(Normal Mode)。0.5μA to 270μA(Low Power Mode)。Allows the STC31 to compensate for humidity and temperature。Sensirion STC31 CO2 Sensor。Uses I2C interface。Addresses：0x29(default)。， 0x2A， 0x2B， 0x2C。Operating voltage range。2.7V to 5.5V(Typ.。3.3V。)。Operating temperature range。-20 ℃ to +85 ℃。Calibrated for CO2 in N2 and CO2 in air。Measurement ranges。0 to 25 vol% in N2。0 to 100 vol% in air。Accuracy。0.5 vol% + 3% measured value in N2。1 vol% + 3% measured value in air。Concentration and temperature resolution：16-bit。Repeatability：0.2 vol%。Temperature stability：0.025 vol% / ℃。Start-up time：14 ms。Thermal conductivity sensor provides calibrated gas concentration and temperature output。Jumpers。PWR LED。I2C pull-up resistors。STC31 address selection。Note：The I2C addresses that are reserved for each sensor is 0x59(SGP40)， 0x70(SHTC3)， 0x29(STC31). A multiplexer/Mux is required to communicate to multiple SHTC3 sensors on a single bus. The SHTC3 uses the same address as the Qwiic Mux(0x70). For advanced users that are using multiple SHTC3's with the Qwiic Mux， you will need to adjust the Qwiic Mux's default address.

Description。Get with the times， already! This SparkFun Real Time Clock(RTC)Module is a Qwiic-enabled breakout board for the RV-1805 chipset. The RTC is ultra-low power(running at only about 22nA in its lowest power setting)so it can use a supercapacitor for backup power instead of a normal battery. This means you get plenty of charge and discharge cycles without any degradation to the "battery." To make it even easier to get your readings， all communication is enacted exclusively via I2C， 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.。This RTC module's built in RV-1805 has not one， but two internal oscillators：a 32.768kHz tuning fork crystal and a low power RC based oscillator and can automatically switch between the two using the more precise crystal to correct the RC oscillator every few minutes. This feature allows the module to maintain a very accurate date and time with the worst case being +/- about three minutes over a year. The RV-1805 also has a built in trickle charger so as soon as the RTC is connected to power the it will be fully charged in under 10 minutes and has the ability to switch power to other systems allowing it to directly turn on or off a power hungry device such as a microcontroller or RF engine.。There is also the option to add a battery to the board if the supercapacitor just isn't going keep your project powered long enough(keep in mind， the supercap can hypothetically make the board keep time for around 35 days)， you can solder on an external battery. That means you can let board sit with no power or connection to the outside world and the current hour/minute/second/date will be maintained.。Note：。The I2C address of the RV-1805 is 0x69 and is hardware defined. A multiplexer/Mux is required to communicate to multiple RV-1805 sensors on a single bus. If you need to use more than one RV-1805 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.。Get Started with the RV-1805 Real Time Clock Module Guide。Features。Operating Voltage(Startup)：1.6V - 3.6V。Operating Voltage(Timekeeping)：1.5V - 3.6V。Operating Temperature：-40℃ - 85℃。Time Accuracy：±2.0 ppm。Current Consumption：22nA(Typ.)。I2C Address：0xD2。Supercapacitor for Backup Power。2x Internal Oscillators。2x Qwiic Connectors

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。If you are not needing a lot of power to start your FPGA adventure， or are looking for a more economical option， the Alchitry Cu FPGA Development Board might be the perfect option for you! The Alchitry Cu is a "lighter" FPGA version than the Alchitry Au but still offers something completely unique. FPGAs， or Field-Programmable Gate Arrays， are an advanced development board type for engineers and hobbyists alike to experience the next step in programming with electronics. The Cu truly exemplifies the trend of more affordable and increasingly powerful FPGA boards arriving each year. This board is a fantastic starting point into the world of FPGAs and the heart of your next project. Finally， now that this board is built by SparkFun， we added a Qwiic connector for easy I2C integration!。The Alchitry Cu uses the Lattice iCE40 HX FPGA with 7680 logic cells and is supported by the open source tool chain Project IceStorm. The Cu possesses 79 IO pins with eight general purpose LEDs； a 100MHz on-board clock that can be manipulated internally by the FPGA； a USB-C connector to configure and power the board； and a USB to serial interface for data transfer.。By adding stackable expansion boards similar to shields or HATs called "Elements，" the Alchitry Cu is able to expand its own hardware capabilities by adding prototyping spaces， buttons， LEDs， and more!。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 our Learning FPGA Tutorials。Features。Lattice iCE40-HX8K FPGA - 7680 logic elements。79 IO pins(3.3V logic level)。USB-C to configure and power the board。Eight general purpose LEDs。One button(typically used as a reset)。100MHz on-board clock(can be multiplied internally by the FPGA)。Powered with 5V through USB-C port， 0.1" holes， or headers。USB to serial interface for data transfer(up to 12Mbaud)。Qwiic Connector。Dimensions of 65mm×45mm。。Examples。First FPGA Project - Getting Fancy with PWM。External IO and Metastability

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.