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Description。This is a simple， subminiature size， axial lead mounted rectifier diode. Often used for reverse voltage protection， the 1N4004 is a staple for many power， DC to DC step up， and breadboard projects. The 1N4004 is rated for up to 1A/400V.

Description。Note：。In larger installations you may need to add a decoupling capacitor between power and ground to prevent voltage dips when turning on a whole bunch of LED's simultaneously. We recommend using a 4.7μF capacitor which we sell in strips of 10.。Get Started With the SparkFun LuMini LED Ring Guide。Features。Optional Capacitor Space。Daisy-Chainable

Description。Note：。In larger installations you may need to add a decoupling capacitor between power and ground to prevent voltage dips when turning on a whole bunch of LED's simultaneously. We recommend using a 4.7μF capacitor which we sell in strips of 10.。Get Started With the SparkFun LuMini LED Ring Guide。Features。Optional Capacitor Space。Daisy-Chainable

USB has become the core of many projects. In my experience I've found it to be troublesome to test USB voltage levels and current usage using a breadboard. They usually consist of holding wires attached to the DMM's test leads、making it difficult to get

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 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。The SparkFun MAX31855K Thermocouple Breakout is a simple 14-bit resolution， SPI-compatible， serial interface thermocouple digitizer that makes reading a wide range of temperatures possible. A thermocouple works by taking two wires made of dissimilar metals， connecting them at the two ends， and making a temperature gradient between one end and the other(a 'hot' end and a 'cold' one). Once this is achieved， a voltage potential is formed and current flows. The SparkFun Thermocouple Breakout takes a standard Type-K thermocouple in one end， digitizes the temperature measured and sends that data out the other end via a SPI interface， thereby interpreting the data and translating it for you to read!。With the SparkFun Thermocouple Breakout， the thermocouple's hot junction can be read from -200℃ to +700℃ with an accuracy of ±2℃ while the cold junction， inside the MAX31855K， can only range from -20℃ to +85℃ while maintaining ±2℃ accuracy. The MAX31855K constantly measures the temperature of the cold junction using an internal temperature-sensing diode. The MAX31855K requires a power source from +3.0V to +3.6V(+3.0V nominal)and only draws 1.5mA maximum.。The Thermocouple Breakout is designed to accept a standard thermocouple connector， for convenience and compatibility with probes you may already own. These connectors aren't necessary， and you could solder a thermocouple directly into the through-holes labeled '+' and '-'. If you decide to solder the thermocouple directly to the breakout board， it is recommended that the thermocouple be mounted for strain relief to avoid breaking the thin wires. Notches for a zip-tie or wire wrapping have been provided in the PCB opposite the header for this purpose.。Features。14-bit Resolution。SPI-Compatible， Serial Interface。-200℃ to +700℃ Temperature Reading with ±2℃ Accuracy。3.0V to 3.6V(+3.0V nominal)Required。Accepts Type-K Thermocouple

。Description。Many of our Qwiic products draw very little current when in standby， but there are some that draw considerably more. Products like our top-end u-blox GNSS boards in particular. There are times when you wish you could switch them off to save power， and the Qwiic Power Switch(QPS)allows you to do exactly that!。Based on the PCA9536 4-Bit I2C I/O expander， the QPS can completely disconnect any attached devices so you can minimize your current draw and extend your battery life when you need to.。The QPS also includes a PCA9306 level-translator which acts as a bus isolator. Want to mix 400kHz and 100kHz I2C devices on the same bus? The QPS will let you do that too! You can isolate the slower devices while you talk to the fast ones. You can leave the slower devices powered up while you do this， or completely switch them off. It's your choice.。If that wasn't enough， we've broken out the two unused GPIO pins so you can use those as extra inputs or outputs for your project too!。Our Arduino Library includes a comprehensive example showing how you can：switch the power； isolate the I2C bus； and use those extra GPIO pins.。Pair some QPSs with the SparkFun Qwiic Mux and you can now not only talk to multiple devices that share the same I2C address， you can selectively switch them off too!。Need extra Qwiic cables? This set covers all the options.。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.。Experimental Product：SparkX products are rapidly produced to bring you the most cutting edge technology as it becomes available. These products are tested but come with no guarantees. Live technical support is not available for SparkX products. Head on over to our forum for support or to ask a question.。Features。PCA9536。4-Bit I2C to Parallel Port Expander。Operating Voltage(VCC)：2.3V to 5.5V。(Note：Qwiic operation。must。be limited to 3.3V)。Operating Temperature：-40℃ to +85℃。400kHz Fast I2C Bus。Input/Output Configuration Register。Polarity Inversion Register。Internal Power-On Reset。No Glitch on Power Up。Standby Current Consumption(Typical)：0.2μA。I2C Address：0x41。PCA9306。Dual Bidirectional I2C Bus Voltage-Level Translator。Lockup-free Operation for Isolation。IN and OUT Qwiic Connection Ports。2x Extra GPIO Pins。IN and OUT Power LEDs。Can be disabled for low power applications

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

The new USB Tester Backback 2.0 brings many new features to the already very useful tool. We have worked hard over the recent months to bring most of the many requested features.。The USB Tester makes it easy to monitor the current and voltage of any USB device. It is inserted inline between your USB device and your power source or computer. This allows you to make sure you are getting a true 5V and to read how much power your projectdevice is using. For example、you can check which charger/cable allows your phone to charge the fastest. The base can be used with a Digital Multi Meter or with the Backpack、you can see the readout directly on the display. The default mode shows a graph of current usage、with the button cycling through the different modes.。The OLED Backpack can connect to a computer either using the Java app or the wizkers.io Chrome app. Both can graph and log the data which can be export as a CSV file. Wizkers is easier to setup and can handle firmware updates.。Features：Micro USB。Button Location on the front left。128x64 OLED Display。Voltage monitoring of the USB Data lines。Easier access to almost all the extra GPIO's。Separated voltage test points(Easier to attach test clips and avoid misplacing jumper)。Standard Dual Banana spacing 0.75in。Standard test probe sized test points。Firmware Features：Peaks。mWh and mAh tracking。Bar Graph of volts、watts and current。JSON for serial communications。Java App：Uses JSON over serial。Save as CSV。View max、min、avg on each graph。Specification：OLED。.96in。128x64。SPI。Supply：4.5v-5.5v。I/O：3.2v-5.5。8 Pin。PCB：26.7mm×25.4mm。Monochrome(WHITE)。Display Mode：Passive Matrix。Drive Duty：1/64 Duty。Active Area：21.744×10.864(mm)。Pixel Size：0.154×0.154(mm)。Pixel Pitch：0.17×0.17(mm)。2.0mm pitch(Might be breadboardable if you bend the pins out)(same pitch as Xbee)