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

TransFlash has now completed standards certification and is now known as microSD. Compatible with the SPI interface found on any SD card、this tiny form factor was created for cell phone storage and is perfect for your next MP3 project! This is a high quality push-push type SMD socket.。Note。The default detect state of this socket is detect pin to ground.

。Description。The SparkFun Load Cell Amplifier is a small breakout board for the HX711 IC that allows you to easily read load cells to measure weight. By connecting the amplifier to your microcontroller you will be able to read the changes in the resistance of the load cell， and with some calibration you'll be able to get very accurate weight measurements. This can be handy for creating your own industrial scale， process control or simple presence detection.。This version of the SparkFun Load Cell Amplifier features a few changes that you specifically asked for! We have separated the analog and digital supply， as well as added a 3.3uH inductor and a 0.1uF filter capacitor for digital supply. Need even more? Checkout the SparkFun Qwiic Scale. It has all the features of the HX711 but with additional library support， a true I2C interface， and no soldering required!。The HX711 uses a two-wire interface(Clock and Data)for communication. Any microcontroller's GPIO pins should work， and numerous libraries have been written， making it easy to read data from the HX711. Check the hookup guide below for more information.。Load cells use a four-wire Wheatstone bridge configuration to connect to the HX711. These are commonly colored RED， BLK， WHT， GRN and YLW. Each color corresponds to the conventional color coding of load cells：Red(Excitation+ or VCC)。Black(Excitation- or GND)。White(Amplifier-， Signal- or Output-)。Green(A+， S+ or O+)。Yellow(Shield)。The YLW pin acts as an optional input that is not hooked up to the strain gauge but is utilized to ground and shield against outside EMI(electromagnetic interference). Please keep in mind that some load cells might have slight variations in color coding.。Note：Special thanks to Bodge for supplying the Library for the HX711!。Get Started with the HX711 Load Cell Amplifier Guide。Features。Operation Voltage：2.7V--5V。Operation Current：< 1.5mA。Selectable 10SPS or 80SPS output data rate。Simultaneous 50 and 60Hz supply rejection

。Description。Sometimes we want our projects on， but sometimes we want to turn them off for a while to save power. The SparkFun Nano Power Timer will run while only consuming minimal power(approximately 35nA)and turn your project on after a set amount of time. When you are done polling your sensors， posting data to the web， writing to your logger， or planning world domination， your microcontroller can tell the Nano Power Timer to turn off the power. No more running your microcontroller all day when you only want to read the ambient temperature once per hour.。The TPL5110 delay is configured with the use of resistors. We've added a six-way DIP switch to select one of the five preinstalled resistors. The sixth switch is attached to a pad to add your own PTH(or SMD)resistor. The delays associated with the preinstalled headers are shown on the bottom of the board for quick setup. Additionally， you can select more than one switch to combine the resistors in parallel(up to 26 options not including the custom resistor)， check out the hookup guide for a nice chart as to the total resistance and corresponding delay for each combination.。The Nano Power Timer can handle voltages between 1.8V and 5.5V as well as current up to 1.1A with times from 100ms to two hours(preconfigured settings range from 30s to 2h). You will find a button on the board which will allow you a quick override to the delay so you can turn your project on whenever you like.。Get Started with the SparkFun Nano Power Switch。Features。Supply Voltage：1.8V to 5.5V。Current consumption at 2.5V：35nA Typical(50nA Max)。Selectable Time intervals：100ms to 7200s(2 hours)。Timer Accuracy：1%

Description。This diode-transistor photocouplers consist of an LED， optically coupled to a high speed photodetector to transmit electrical signals between circuits while still isolating your system from higher voltages. The 6N137 optoisolator is presented in an 8-pin DIP package.。The output features is an open collector and coupler parameters are guaranteed over the temperature range from -40℃～5℃. The internal shield provides a guaranteed Common Mode Transient Immunity(typical)10KV/μs.。Features。High Speed：10MBd。Common Mode Rejection：10KV/μs

Description。There are a couple must-have boards that every engineer and hobbyist should have on their desk， and this PCA9306 dual， bidirectional voltage-level translator breakout is one of them! Because different parts sometimes use different voltage

Description。The SparkFun Qwiic ToF Imager is a state of the art， 64 pixel Time-of-Flight(ToF)4 meter ranging sensor built around the VL53L5CX from ST. This chip integrates a SPAD array， physical infrared filters， and diffractive optical elements(DOE)to

Description。The SparkFun BME680 Environmental Sensor is a breakout that combines a gas sensor with temperature， humidity and barometric pressure sensing for a complete environmental sensor in a single package. The gas sensor on the BME680 can detect a

Description。The PicoBuck LED Driver is an economical and easy to use driver that will allow you to control and blend three different LEDs on three different channels. By default， each channel is driven at 330mA； that current can be reduced by either presenting an analog voltage or a PWM signal to the board. Version 12 of the board adds a solderable jumper that can be closed to increase the maximum current to 660mA. The new voltage regulator also increased the voltage rating on the various components on the board， allowing it to be used up to the full 36V rating of the AL8805 part.。Three signal inputs are provided for dimming control. You can use the PWM signal from an Arduino or your favorite microcontroller to dim each channel individually， or you can tie them all to the same PWM for simultaneous dimming. Dimming can be done by an analog voltage(20%-100% of max current by varying voltage from .5V-2.5V)or by PWM(so long as PWM minimum voltage is less than .4V and maximum voltage is more than 2.4V)for a full 0-100% range. A small jumper is provided for each channel to allow you to increase the drive strength from 330mA to 660mA. Two mounting holes for 4-40 or M3 screws are provided on either side of the board. They are perforated so they can be easily snapped off with a pair of pliers， if a smaller footprint is desired.。Note：。If you're going to use screw terminals， this board uses two different sizes. Check the related products for both sizes you'll need.。Note：。The PicoBuck LED Driver was made in collaboration with Ethan Zonca. A portion of each sale is given back to him.

Description。The SparkFun Qwiic Dual Solid State Relay is a power delivery board that allows users to switch two AC loads from a low power microcontroller using the SparkFun Qwiic connect system. The board features two 25A/250VAC solid state relays that utilize the Zero Cross Trigger method so you can toggle two loads on a 60Hz AC carrier signal on and off up to 120 times per second!。An ATTiny84 acts as the "brain" of the SparkFun Qwiic Dual Solid Relay to accept I2C commands to toggle the two relays as well as a few other special commands. The I2C address of the ATtiny84A is software configurable so， if you have a seriously big power project in mind， you could daisy chain over 100 Qwiic Dual Solid State Relays.。Messing with such high voltage is dangerous! We've included many safety precautions onto the PCB including ground isolation between the relay and other circuitry and a milled out area isolating each side of AC. However， with all the safety precautions included with the SparkFun Qwiic Dual Solid State Relay， this is still a power accessory for users who are experienced around， and knowledgeable about high AC voltage. If you're not comfortable with handling AC voltage in this way， you may want to check out the IoT Power Relay instead.。Note：The relays are rated for a max of 25A with forced air cooling. If you do not have forced air cooling， 10A max through the relays is recommended.。The SparkFun Qwiic connect system is an ecosystem of I2C sensors， actuators， shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch， 4-pin JST connector. This reduces the amount of required PCB space， and polarized connections mean you can't hook it up wrong.。Get Started with the SparkFun Qwiic Dual Solid State Relay Guide。Features。Operating Voltage：2.5-3.6V(3.3V recommended)。I2C Address：0x0A(Default)0x0B(Alternate via jumper select)。Load Voltage Range：12-280VAC。Max Current(Through Relay)：25A(240VAC with forced air cooling)。Zero Cross Trigger。Normally Open Circuit Only。2x Qwiic Connector

Description。With a 32-bit ARM Cortex-M4F MCU， the SparkFun MicroMod SAMD51 Processor Board is one powerful microcontroller packaged on a small board! The board provides you with an economical and easy to use development platform if you're needing mor

Description。The SparkFun 16-Pin SSOP to DIP Adapter is a small PCB that lets you adapt SSOP packages into a DIP footprint. These small boards are useful for modding and upgrading devices that use 14- and 16-pin DIP ICs， when the upgraded IC is only av

。Description。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。The FLIR Lepton(R)2.5 - Thermal Imaging Module is a radiometric-capable long wave infrared(LWIR)camera solution that is smaller than a dime， fits inside a smartphone， and is less expensive than traditional IR cameras. With a focal plane array of 80x60 active pixels， this Lepton easily integrates into native mobile-devices and other electronics as an IR sensor or thermal image sensor. The radiometric Lepton captures accurate， calibrated， and non-contact temperature data in every pixel.。For large quantities：We currently have a limit of one per customer order on the FLIR Lepton 2.5 module due to supply chain issues as a result of COVID-19. If you need to place a distributor order please contact your sales rep and they will assist you. For bulk order for this module please visit our Volume Pricing Page for inquiries of stock. At this time， we cannot guarantee orders for this module but we will do what we can to work with you in fulfilling your request.。Features。Effective Frame Rate：8.6 Hz(commercial application exportable)。Input Clock：25-MHz nominal， CMOS IO Voltage Levels。Output Format：User-selectable 14-bit， 8-bit(AGC applied)， or 24-bit RGB(AGC and colorization applied)。Pixel Size：17 μm。Radiometric Accuracy：High gain：Greater of +/- 5℃ or 5%(typical)Low gain：Greater of +/- 10℃ or 10%(typical)。Scene Dynamic Range：-10-140 ℃(high gain)； up to 450℃(low gain)typical。Spectral Range：Longwave infrared， 8 μm to 14 μm。Temperature Compensation：Automatic. Output image independent of camera temperature.。Thermal Sensitivity：<50 mK(0.050° C)。Video Data Interface：Video over SPI。Control Port：CCI(I2C-like)， CMOS IO Voltage Levels。Package Dimensions - Socket Version(w×l×h)：11.8×12.7×7.2 mm。Mechanical Interface：32-pin socket interface to standard Molex(R)socket。Non-Operating Temperature Range：-40 ℃ to +80 ℃。Optimum Temperature Range：-10℃ to +80℃。Shock：1500 G @ 0.4 ms。Array format：80×60， progressive scan。FOV - Diagonal：63.5°。FOV - Horizontal：50°(nominal)。Image Optimization：Factory configured and fully automated。Non-Uniformity Correction(NUC)：Automatic with shutter。Sensor Technology：Uncooled VOx microbolometer。Solar protection：Integral。Input Supply Voltage：2.8 V， 1.2 V， 2.5 V to 3.1 V IO。Power Dissipation：150 mW(operating)， 650 mW(during shutter event)， 4 mW(standby)

Description。This 8mp camera module is capable of 1080p video and still images that connect directly to your Raspberry Pi. This is the plug-and-play-compatible latest version of the Raspbian operating system， making it perfect for time-lapse photography， recording video， motion detection and security applications. Connect the included ribbon cable to the CSI(Camera Serial Interface)port on your Raspberry Pi， and you are good to go!。The board itself is tiny， at around 25mm×23mm×9mm and weighing in at just over 3g， making it perfect for mobile or other applications where size and weight are important. The sensor has a native resolution of 8 megapixel， and has a fixed focus lens on board. In terms of still images， the camera is capable of 3280×2464 pixel static images， and also supports 1080p30， 720p60 and 640x480p90 video.。Note：This module is only capable of taking pictures and video， not sound.。Features。Image Sensor：Sony IMX219。Maximum Photo Resolution：3280×2464 pixel。Supported Video Resolution：1080p30， 720p60 and 640x480p90。Physical Dimensions：25mm×23mm×9mm。Interface：CSI connector(15cm ribbon cable included)。Supported OS：Raspbian(latest version recommended)

Description。This is the FemtoBuck， a small-size single-output constant current LED driver. Each FemtoBuck has the capability to dim a single high-power channel of LEDs from 0-350mA at up to 36V while the dimming control can be either accessed via PWM or analog signal from 0-2.5V. This board is based off of the PicoBuck LED Driver， developed in collaboration with Ethan Zonca， except instead of blending three different LEDs on three different channels the FemtoBuck controls just one.。For the FemtoBuck， we've increased the voltage ratings on the parts to allow the input voltage to cover the full 36V range of the AL8805 driver. Since the FemtoBuck is a constant current driver， the current drawn from the supply will drop as supply voltage rises. In general， efficiency of the FemtoBuck is around 95%， depending on the input voltage. On board each FemtoBuck you will find two inputs for both power input and dimming control pins and an area to install a 3.5mm screw terminal. Finally at either side of the board you will find small indents or "ears" which will allow you to use a zip tie to secure the wires to the board after soldering them down. This version of the FemtoBuck is equipped with a small solder jumper that can be closed with a glob of solder to double the output current from 330mA to 660mA.

。Description。Need to keep track of the airflow in your data center or around your servers? How about making sure your HVAC and air control systems are functioning at full capacity? Well， the new SparkFun FS3000-1005 Air Velocity Sensor Breakout can help you with all that and more! It's super easy and super quick(Qwiic!)to hook up.。This breakout board is focused around Renesas' FS3000-1005， a surface-mount air velocity module with a range of 0-7.2m/s(0-16.2mph). It utilizes a MEMS thermopile-based sensor， features a digital output with 12-bit resolution and comprises a "solid" thermal isolation technology and silicon carbide coating to protect it from abrasive wear and water condensation.。We've written an Arduino library to help you get started quickly. You can download the library through the Arduino library manager by searching 'SparkFun Air Velocity' or you can get the GitHub repo as a .zip file and install the library from there.。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 Qwiic Air Velocity Sensor Breakout。Features。I2C address：0x28。Air flow speed：0 - 7.23 m/sec(0 - 16.17mph)。Accuracy：5 % of full scale flow range。12-bit resolution。Input Voltage：2.7-3.3V。Average current draw：10mA

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。A lot of the time you just need to add more analog inputs to solve a problem. It happens. The SparkFun Qwiic 12 Bit ADC can provide four channels of I2C controlled ADC input to your Qwiic enabled project. These channels can be used as single-ended inputs， or in pairs for differential inputs. What makes this even more powerful is that it has a programmable gain amplifier that lets you "zoom in" on a very small change in analog voltage(but will still effect your input range and resolution). 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 ADS1015 uses its own internal voltage reference for measurements， but a ground and 3.3V reference are also available on the pin outs for users. This ADC board includes screw pin terminals on the four channels of input， allowing for solderless connection to voltage sources in your setup. It also has an address jumper that lets you choose one of four unique addresses(0x48， 0x49， 0x4A， 0x4B). With this， you can connect up to four of these on the same I2C bus and have sixteen channels of ADC. The maximum resolution of the converter is 12-bits in differential mode and 11-bits for single-ended inputs. Step sizes range from 125μV per count to 3mV per count depending on the full-scale range(FSR)setting.。We have included an onboard 10K trimpot connected to channel A3. This is handy for initial setup testing and can be used as a simple variable input to your project. But don't worry， we added an isolation jumper so you can use channel A3 however you'd like.。Note：The I2C address of the ADS1015 is 0x48 and is jumper selectable to 0x49， 0x4A， 0x4B. A multiplexer/Mux is required to communicate to multiple ADS1015 sensors on a single bus. If you need to use more than one ADS1015 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 SparkFun Qwiic 12-Bit ADC Hookup Guide。Features。ADS1015。Operating Voltage(VDD)：2.0V-5.5V。(Note：When powering with a Qwiic cable， the input range is only 3.3v)。Operating Temperature：-40℃ to 125℃。Operation Modes：Single-Shot， Continuous-Conversion(Default)， and Duty Cycling。Analog Inputs：Measurement Type：Single-Ended(Default)。Input Voltage Range：GND to VDD。Full Scale Range(FSR)：±.256V to ±6.114V(Default：2.048V)。Resolution：12-bit(Differential)or 11-bit(Single-Ended)。LSB size：0.125mV - 3mV(Default：1 mV)。Sample Rate：128 Hz to 3.3 kHz(Default：1600SPS)。Current Consumption(Typical)：150μA-200μA。I2C Address：0x48(Default)， 0x49， 0x4A， or 0x4B。Screw pin terminals for solderless connection to voltage sources。Four unique I2C addresses：0x48。0x49。0x4A。0x4B。2x Qwiic connection ports。Onboard 10K trimpot

Description。The DHT20 is a low cost humidity and temperature sensor with a I2C digital output protocol. It can be applied to HVAC， dehumidifier， automatic control， data loggers， weather stations， and many other projects. The sensor is calibrated and doesn't require extra components so you can get right to measuring relative humidity and temperature.。Features。Supply Voltage：2.2-5.5V。Communication：Standard I2C Protocol。Humidity from 0-100% RH。Typical accuracy：RH：±3%， T：±0.5℃。-40 - 80 degrees C temperature range

Description。The Raspberry Pi Compute Module 3+ Lite contains the guts of a Raspberry Pi 3 Model B+(the BCM2837 processor and 1GB LPDDR2 RAM). This module allows a designer to leverage the Raspberry Pi hardware and software stack in their own custom systems and form factors. In addition this module has extra IO interfaces over and above what is available on the Raspberry Pi model A/B boards， opening up more options for the designer.。This is all integrated onto a small(67.6mm×31mm)board that fits into a standard DDR2 SODIMM connector. You get the full flexibility of the BCM2837 SoC(which means that many more GPIOs and interfaces are available than with a standard Raspberry Pi)， and designing the Module into a custom system should be relatively straightforward because all the tricky bits have been put onto the Module itself.。The CM3+ Lite product is the same as CM3+ except the eMMC Flash is not fitted， and the SD/eMMC interface pins are available for the user to connect their own SD/eMMC device. Note that the CM3+ is electrically identical and， with the exception of higher CPU z-height， physically identical to the legacy CM3 products.。Note：The CM3+ modules require a software/firmware image dated November 2018 or newer to function correctly.。Features。Broadcom BCM2837B0， Cortex-A53(ARMv8)64-bit SoC @ 1.2GHz。1GB LPDDR2 SDRAM。Operating Supply Voltage：1.8V， 3.3V。Minimum Operating Temperature：-25C。Maximum Operating Temperature：+80C。HDMI， MIPI， USB， and GPIO interfaces on edge connector

。Description。The HM01B0 from Himax Imaging is an ultra low power CMOS Monochrome Image Sensor that enables the integration of an "Always On" camera for computer vision applications such as gestures， intelligent ambient light and proximity sensing， tracking and object identification. The sensor allows the sensor to consume very low power of <2mW at QVGA 30FPS. This low power consumption and vision applications camera comes with a ribbon cable that mates to the camera connector populated on the following products：MicroMod Machine Learning Carrier Board。Artemis Development Kit。Edge Development Board - Apollo3 Blue。The HM01B0 contains 320×320 pixel resolution and supports a 320×240 window mode which can be readout at a maximum frame rate of 60FPS， and a 2×2 monochrome binning mode with a maximum frame rate of 120FPS. The video data is transferred over a configurable 1bit， 4bit or 8bit interface with support for frame and line synchronization. The sensor integrates black level calibration circuit， automatic exposure and gain control loop， self-oscillator and motion detection circuit with interrupt output to reduce host computation and commands to the sensor to optimize the system power consumption.。Features。Image Sensor。Ultra Low Power Image Sensor(ULPIS)designed for Always On vision devices and applications。High sensitivity 3.6μ BrightSenseTM pixel technology。320×320 active pixel resolution with support for QVGA window， vertical flip and horizontal mirror readout。Programmable black level calibration target， frame size， frame rate， exposure， analog gain(up to 8x)and digital gain(up to 4x)。Automatic exposure and gain control loop with support for 50 / 60Hz flicker avoidance。Flexible 1bit， 4bit and 8bit video data interface with video frame and line sync。Motion Detection circuit with programmable ROI and detection threshold with digital output to serve as an interrupt。On-chip self oscillator。I2C 2-wire serial interface for register access。High CRA for low profile module design。Sensor Parameters。Active Pixel Array 320×320。Pixel Size 3.6 μm×3.6 μm。Full Image Area 1152 μm×1152 μm。Diagonal(Optical Format)1.63 mm(1/11″)。Scan Mode：Progressive。Shutter Type：Electronic Rolling Shutter。Frame Rate MAX 51 fps @ 320×320， 60 fps @ 320×240(QVGA)。CRA(maximum)30℃。Sensor Specifications。Supply Voltage：Analog - 2.8 V， Digital - 1.5V(Internal LDO：1.5V - 2.8V)， I/O - 1.5 - 2.8V。Input Reference Clock：3 - 50 MHz。Serial Interface(I2C)：2-wire， 400 KHz max.。Video Data Interface：1b， 4b， 8b with frame / line SYNC。Output Clock Rate MAX：50 MHz for 1bit， 12.5 MHz for 4bit， 6.25 MHz for 8bit。Est. Power Consumption(include IO with 5pF load)：QVGA 60FPS(Typical)<4 mW。QVGA 30FPS(Typical)<2 mW

Description。The TFMini Plus is a ToF(Time of Flight)LiDAR sensor capable of measuring the distance to an object as close as 10 centimeters(+/- 5cm up to 6m)and as far as 12 meters(+/-1% starting at 6m)! As with all LiDAR sensors， your effective detection distance will vary depending on lighting conditions and the reflectivity of your target object， but what makes this sensor special is its size. Measuring only 35x18.5x21mm， the TFMini Plus allows you to integrate LiDAR into applications traditionally reserved for smaller sensors.。Setting itself apart from the original TFmini， the TFmini Plus has been designed with an IP65 enclosure meaning its "Dust tight water resistant"， and also passed the vibration test of drone level， which will greatly expand its application range. The TFMini Plus is easy to power at only 5V and easy to talk to using the UART communication protocol.。Important：This product does not use laser light for ranging. Instead it contains an LED and optics. Many such systems are being marketed under the name "LiDAR，" although it may be more appropriate to think of this device as a "Time-of-Flight Infrared Rangefinder". It differs significantly from traditional IR rangefinders in that it uses ToF to determine range and not triangulation ― as is performed by the Sharp GP-series devices.。Features。Operating Range - 0.1m～12m1。Accuracy - ±5cm@(0.1-6m)， ±1%@(6m-12m)。Distance resolution - 5mm。Frame rate - 1-1000Hz(adjustable)。Ambient light immunity - 70klux。Operating temperature - -20℃～60℃。Enclosure rating - IP65。Light source - LED。Central wavelength - 850nm。FOV - 3.6°。Supply voltage - 5V±0.5V。Average current - ≦110mA。Power consumption - 550mW。Peak current - 500mA。Communication level - LVTTL(3.3V)。Material of enclosure - ABS+PC。Storage temperature - -20℃～75℃。Weight - 11g。Wire length - 30cm

。Description。The SparkFun Level Shifting microSD Breakout is quite similar to the SparkFun microSD Transflash Breakout， but with the included level shifting hardware， this board allows you to utilize a microSD card at Arduino's SD library's top speed on a 5V system. With this small breakout board， that is not much bigger than your fingernail， adding mass storage to your project will never be easier.。This breakout is also a bit unique in that it level translates all of its outputs back to the level of the hardware it's connected to.。Get Started with the SparkFun Level Shifting microSD Guide

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

。Description。Arduino is an open-source physical computing platform based on a simple i/o board and a development environment that implements the Processing/Wiring language. Arduino can be used to develop stand-alone interactive objects or can be connected to software on your computer(e.g. Flash， Processing， MaxMSP). The open-source IDE can be downloaded for free(currently for Mac OS X， Windows， and Linux).。The Arduino Mega is a microcontroller board based on the ATmega2560. It has 54 digital input/output pins(of which 14 can be used as PWM outputs)， 16 analog inputs， 4 UARTs(hardware serial ports)， a 16 MHz crystal oscillator， a USB connection， a power jack， an ICSP header， and a reset button. It contains everything needed to support the microcontroller； simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.。Never fear for accidental electrical discharge， either since since the Mega also includes a plastic base plate to protect it!。The Mega 2560 R3 also adds SDA and SCL pins next to the AREF.。In addition， there are two new pins placed near the RESET pin. One is the IOREF that allow the shields to adapt to the voltage provided from the board.。The other is a not connected and is reserved for future purposes.。The Mega 2560 R3 works with all existing shields but can adapt to new shields which use these additional pins.。Not sure which Arduino or Arduino-compatible board is right for you? Check out our Arduino Buying Guide!。Features。ATmega2560 microcontroller。Input voltage - 7-12V。54 Digital I/O Pins(14 PWM outputs)。16 Analog Inputs。256k Flash Memory。16Mhz Clock Speed

Description。The TFMini-S Micro LiDAR Module is a ToF(Time of Flight)LiDAR sensor capable of measuring the distance to an object as close as 10 centimeters(+/- 6cm up to 6m)and as far as 12 meters(+/-1% starting at 6m)! As with all LiDAR sensors， your effective detection distance will vary depending on lighting conditions and the reflectivity of your target object， but what makes this sensor special is its size. Measuring only 42x15x16mm， the TFMini-S allows you to integrate LiDAR into applications traditionally reserved for smaller sensors.。TFMini-S is a single-point ranging LiDAR based on TFmini upgrade. The blind zone is shortened to 10cm， the outdoor performance and accuracy of different reflectivity are improved， it can achieve stable， accuracy， sensitive and high frequency range detection.。Important：This product does not use laser light for ranging. Instead it contains an LED and optics. Many such systems are being marketed under the name "LiDAR，" although it may be more appropriate to think of this device as a "Time-of-Flight Infrared Rangefinder". It differs significantly from traditional IR rangefinders in that it uses ToF to determine range and not triangulation ― as is performed by the Sharp GP-series devices.。Features。Operating Range：0.1m～12m@90%Reflectivity。0.1～7m@10% Reflectivity。0.1m～12m@90%Reflectivity(70Klux)。0.1～7m@10% Reflectivity(70Klux)。Accuracy：±6cm@(0.1-6m)。±1%@(6m-12m)。Distance Resolution：1cm。Frame Rate：100Hz。Ambient light immunity：70Klux。Operating Temperature：0℃～60℃。Light source：VCSEL。Central wavelength：850nm。Photobiological safety：Class1(EN60825)。FOV：2°2。Supply voltage：5V±0.1V。Average current：≦140mA。Power consumption：≦0.7W。Peak current：200mA。Communication level：LVTTL(3.3V)。Communication interface：UART / I2C。Dimension：42mmx15mmx16mm(LxWxH)。Housing：PC/ABS。Storage temperature：-20℃～75℃。Weight：5g±0.3g。Cable length：10cm

Description。The MQ-2 is a smoke and combustible gas sensor from Winsen. It can detect flammable gas in a range of 300 - 10000ppm. It's most common use is domestic gas leakage alarms and detectors with a high sensitivity to propane and smoke. The sensing material is SNO2 for which the conductivity is lower in clean environments and higher when smoke or flammable gas is present. A simple circuit makes measuring this change in conductivity and turning it into data fairly straight-forward， but does require some calibration.。For easy Solderability； use our Gas Sensor Breakout Board.

Description。The Raspberry Pi PoE+ HAT is designed to replace the existing Raspberry Pi PoE HAT in all new and existing designs. Like the original， the PoE+ HAT allows you to power your Raspberry Pi using Power over Ethernet networks. The PoE+ HAT meets all the requirements of the IEEE 802.3af(802.3at Type 1， PoE+)specifications. This ups the power the network can supply from 15.4 watts(PoE)to 25.5 Watts(PoE+)over CAT5 cable.。No modification to the main Raspberry Pi board is needed for the PoE+ HAT to work but you will need to ensure that your Pi's software is up to date for all functionality to be available. The Raspberry Pi PoE+ HAT is fitted with a small fan that is controlled by the Raspberry Pi via I2C and will turn on and off automatically depending on the temperature of the main processor on your Pi.。Note：There is no Raspberry Pi included with this product. Your desired Pi will need to be purchased separately.。Features。Input voltage：37-57V DC， Class 2 device。Output power：5V DC/3.0A。Cooling：25mm×25mm brushless fan delivering 2.2CFM forprocessor cooling。Fully isolated switch-mode power supply。Fan control。Mechanically compatible with the existing Raspberry Pi PoE HAT

Description。The PQ12 series of micro linear actuators are ideal for applications requiring precise positioning and compact size. Weighing in at just 22 grams， the PQ12 is incredibly light as well as compact. The affordably-priced PQ12 is the most powerful actuator of it's size. This is why it has become a popular choice for OEM manufacturers as well as Arduino and RC hobbyists. Some industries where the PQ12 are in use include：prosthetics， robotics， medical， simulation.。The PQ12-R series of linear servos operate as a direct replacement for standard rotary servos. They use the same standard 3 wire connector， ground power and control. Regardless of how you drive your servos， be it with an RC receiver， an Arduino board， or a VEX micro-controller， the PQ12-R servo will function in place of a regular servo， but with the added benefit of providing linear motion. The PQ12-R is available in a 20mm stroke coupled with gear ratio options of 30：1， 63：1 and 100：1 cover a large variety of applications.。The PQ12-100-6-R has：a 100：1 gear ratio for maximum lifting force； 6VDC operating voltage； and a servo(PWM)interface. This powerful little actuator can lift 50N(～5kg)!。The datasheet doesn't mention a minimum operating voltage， but we've tested this actuator at 5VDC and it seems to work just fine. The maximum force and movement speed are reduced of course.。Features。Gearing Option：100：1。Peak Power Point：40N @ 6mm/s。Peak Efficiency Point：20N @ 8mm/s。Max Speed(no load)：10mm/s。Max Force(lifted)：50N。Max Side Load：10N。Back Drive Force：35N。Stroke：20 mm。Input Voltage：6 VDC。Stall Current：550mA @ 6V。Mass：22g。Operating Temperature -10℃ to +50℃。Positional Repeatability：±0.1mm。Mechanical Backlash：0.25 mm。Audible Noise：55dB @ 45cm。Ingress Protection：IP-54。Maximum Duty Cycle：20%。PWM(Servo)signal：Fully retracted：2.0ms @ 50Hz。Fully extended：1.0ms @ 50Hz

Description。The SparkFun Alphanumeric Display Arduino library makes printing strings to the display as easy as calling the print()function. With this library， you'll be able to send I2C commands to the VK16K33 LED driver chip to light up segments(including the decimal point or colon)and even scroll your string across the display. You can download the library through the Arduino library manager by searching 'SparkFun Alphanumeric Display' or you can get the GitHub repo as a .zip file and install the library from there.。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 Qwiic Alphanumeric Display Hookup Guide。Features。Operating Voltage：3.3V。Integrated RC oscillator。Maximum display segment numbers：128 patterns。13×3 matrix key scan circuit。16-step dimming circuit。I2C Addresses：0x70(0x71， 0x72， 0x73)。2x Qwiic connectors。2x Wall Mounting Points

Description。The SparkFun Alphanumeric Display Arduino library makes printing strings to the display as easy as calling the print()function. With this library， you'll be able to send I2C commands to the VK16K33 LED driver chip to light up segments(including the decimal point or colon)and even scroll your string across the display. You can download the library through the Arduino library manager by searching 'SparkFun Alphanumeric Display' or you can get the GitHub repo as a .zip file and install the library from there.。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 Qwiic Alphanumeric Display Hookup Guide。Features。Operating Voltage：3.3V。Integrated RC oscillator。Maximum display segment numbers：128 patterns。13×3 matrix key scan circuit。16-step dimming circuit。I2C Addresses：0x70(0x71， 0x72， 0x73)。2x Qwiic connectors。2x Wall Mounting Points

Description。The SparkFun Alphanumeric Display Arduino library makes printing strings to the display as easy as calling the print()function. With this library， you'll be able to send I2C commands to the VK16K33 LED driver chip to light up segments(including the decimal point or colon)and even scroll your string across the display. You can download the library through the Arduino library manager by searching 'SparkFun Alphanumeric Display' or you can get the GitHub repo as a .zip file and install the library from there.。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 Qwiic Alphanumeric Display Hookup Guide。Features。Operating Voltage：3.3V。Integrated RC oscillator。Maximum display segment numbers：128 patterns。13×3 matrix key scan circuit。16-step dimming circuit。I2C Addresses：0x70(0x71， 0x72， 0x73)。2x Qwiic connectors。2x Wall Mounting Points

Description。The SparkFun Alphanumeric Display Arduino library makes printing strings to the display as easy as calling the print()function. With this library， you'll be able to send I2C commands to the VK16K33 LED driver chip to light up segments(including the decimal point or colon)and even scroll your string across the display. You can download the library through the Arduino library manager by searching 'SparkFun Alphanumeric Display' or you can get the GitHub repo as a .zip file and install the library from there.。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 Qwiic Alphanumeric Display Hookup Guide。Features。Operating Voltage：3.3V。Integrated RC oscillator。Maximum display segment numbers：128 patterns。13×3 matrix key scan circuit。16-step dimming circuit。I2C Addresses：0x70(0x71， 0x72， 0x73)。2x Qwiic connectors。2x Wall Mounting Points

。Description。Add another eight pins to your microcontroller using a MCP23008 port expander. The MCP23008 uses two I2C pins which can be shared with other I2C devices， and in exchange gives you eight general purpose pins. You can set each of eight pins to be input， output， or input with a pullup. There's even the ability to get an interrupt via an external pin when any of the inputs change so you don't have to keep polling the chip.。Use this chip from 2.7-5.5V(good for any 3.3V or 5V setup)， and you can sink/source up to 20mA from any of the I/O pins so this will work for LEDs and such. Team it up with a high-power MOSFET if you need more juice. DIP package means it will plug into any breadboard or perfboard.。You can set the I2C address by tying the ADDR0-2 pins to power or ground， for up to eight unique addresses. That means eight chips can share a single I2C bus - that's 64 I/O pins!。Features。8-bit remote bidirectional I/O port。High-speed I2C interface(MCP23008)。Hardware address pins。Configurable interrupt output pin。Configurable interrupt source。Polarity Inversion register for input port data polarity config.。External reset input。Low standby current：1 μA(max.)・ Operating voltage：。1.8V to 5.5V @ -40℃ to +85℃ I2C @ 100 kHz SPI @ 5 MHz。2.7V to 5.5V @ -40℃ to +85℃ I2C @ 400 kHz SPI @ 10 MHz。4.5V to 5.5V @ -40℃ to +125℃ I2C @ 1.7 kHz SPI @ 10 MHz

Description。The SparkFun LSM6DSO 6 Degrees of Freedom Breakout is an accelerometer and gyroscope sensor with a giant 9kB FIFO buffer and embedded processing interrupt functions. Due to the capabilities and low cost of the LSM6DSO we've created this small breakout board just for you! Each LSM6DSO breakout has been designed to be super-flexible and can be configured specifically for many applications. With the LSM6DSO breakout you will be able to detect shocks， tilt， motion， taps， count steps， and even read the temperature!。The LSM6DSO from STMicroelectronics is capable of reading accelerometer and gyroscope data up to 6.66kHz for more accurate movement sensing. As stated before this breakout also has the ability to buffer up to 9kB of data between reads， host other sensors， and drive interrupt pins all thanks to the LSM6DSO's built-in FIFO.。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. Each pin has been broken out on the LSM6DSO， with one side of the board featuring power， I2C， and SPI functionality while the other side sporting pins that control auxiliary functionality and interrupt outputs. Please keep in mind that the LSM6DSO is a 3.3V device so supplying voltages greater than ～3.6V can permanently damage the IC. A logic level shifter is required for any development platform operating at 5V.。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 LSM6DSO Qwiic 6DoF Guide。Features。2x Qwiic connectors。I2C Address。0x6B(default)。， 0x6A。Accelerometer measurement range。±2/±4/±8/±16 g full scale。Gyro measurement range。±125/±250/±500/±1000/±2000 dps full scale。Embedded temperature sensor。16-bit resolution。Operating voltage range。1.71V to 3.6V。Typically。3.3V。if using the Qwiic cable。Power consumption @ 1.8V。0.55 mA in combo high-performance mode。0.265 mA in combo low-power mode。"Always on" experience with low power consumption for both accelerometer and gyroscope。I2C/SPI serial interface with main processor data synchronization feature。Smart FIFO up to 9 kbyte based on features set。Operating temperature range。-40℃ to +85℃

Description。We are quite familiar with seven-segment displays. We see them on our alarm clocks， ovens， and microwaves. By adding more segments to each digit you can display more than just numbers! Introducing the brand new SparkFun Qwiic Alphanumeric Display. These white fourteen-segment digits allow you display all sorts of numbers， characters， and symbols. With Qwiic， simply plug it in and go. No soldering， no figuring out which is SDA or SCL， and no voltage regulation or translation required!。The SparkFun Alphanumeric Display Arduino library makes printing strings to the display as easy as calling the print()function. With this library， you'll be able to send I2C commands to the VK16K33 LED driver chip to light up segments(including the decimal point or colon)and even scroll your string across the display. You can download the library through the Arduino library manager by searching 'SparkFun Alphanumeric Display' or you can get the GitHub repo as a .zip file and install the library from there.。The VK16K33 also supports I2C address configuration. Simply close a combination of the address jumpers on the back and you can communicate with up to four displays on the same bus. Our slim board design also features detachable stand off holes， vertical Qwiic connectors， and internal mounting holes.。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 Qwiic Alphanumeric Display Hookup Guide。Features。White display。Operating Voltage：3.3V。Integrated RC oscillator。Maximum display segment numbers：128 patterns。13×3 matrix key scan circuit。16-step dimming circuit。I2C Addresses：0x70(0x71， 0x72， 0x73)。2x Qwiic connectors。2x Wall Mounting Points

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。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。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