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Description。This is the PICkit 4， the official programmer from Microchip. The PICkit 4 allows debugging and programming of PIC(R)， dsPIC(R)， AVR， SAM and CEC flash microcontrollers and MPUs using the powerful graphical user interface of the MPLAB X Integrated Development Environment(IDE). The MPLAB PICkit 4 is connected to a PC using a high-speed 2.0 USB interface and can be connected to the target via an 8-pin Single In-Line(SIL)connector. The connector uses two device I/O pins and the reset line to implement in-circuit debugging and In-Circuit Serial Programming(TM)(ICSP(TM)). An additional micro SD card slot and the ability to be self-powered from the target means you can take your code with you and program on the go. Comes with a USB to micro-B USB cable.。Features。Powered by a high-speed USB 2.0， no external power required。Real-time execution。MPLAB X IDE compatible(free copy included)。Built-in over-voltage/short circuit monitor。Firmware upgradeable from PC/web download。Fully enclosed。Target voltage of 1.20V to 5.5V。Can supply up to 50mA of power to the target。Minimal current consumption at <100μA from target。Diagnostic LEDs(power， busy， error)。Read/write program and data memory of microcontroller。Erase of program memory space with verification。Freeze-peripherals at breakpoint。8-pin single in-line header supports advanced interfaces such as 4-wire JTAG and Serial Wire Debug with streaming Data Gateway。Backward compatible for demo boards， headers and target systems using 2-wire JTAG and ICSP

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。For the times when all you need is a basic SD card this is the card for you. 1GB capacity is plenty to store MP3s or log environmental data， and still dwarfs older memory systems like magnetic core memory.。This card is not the Ferrari of SD technology， but that's what makes it perfect to use in permanent projects that require non-volatile storage. It is a Class 4 SDHC card with rated transfer speeds up to 4 MB/s. A simple test on our PC showed the available space as 942 MB and a write speed of ～5 MB/s.。No adapter is included because you probably have them coming out of your ears at this point.。Features。SDHC format。1GB capacity。Class 4(4MB/s)

Description。The SparkFun Inventor's Kit for micro：bit v2 Lab Pack includes 10 complete micro：bit v2 Inventor's Kits， an SIK Refill Pack and 25 AAA-sized batteries to get your students started in the world of electronics. The SIKs inside the Lab Pack have everything you need， including micro：bit v2s， connector breakouts， breadboards and all the cables and accessories to hook up all the projects listed in our online Experiment Guide.。The kit does not require any soldering and is recommended for all users， from beginners to engineering students. We have provided a complete Experiment Guide in the Documents tab for you to check out now! If you are new to teaching electronics or have taught with the original SparkFun Inventor's Kit and are looking for something new， the SIK for micro：bit v2 is the perfect kit for you!。SparkFun packages everything educators need to get started with this platform in a variety of classroom and makerspace settings with diverse student populations. The hardware boards， cables and extra parts come pre-packaged， and our online support materials --- including an online Experiment Guide(to be updated)--- help you bring the power of the open source community to your classroom. Examples and curriculum materials are available from SparkFun and Arduino， as well as from other educators involved in this growing maker movement.。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!

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。The SparkFun RV-8803 Real Time Clock Module is a Qwiic-enabled breakout board for the RV-8803 RTC. The RV-8803 boasts some impressive features including a temperature compensated crystal providing extremely precise time-keeping， low power consumption， and time stamp event input along with a user-programmable timing offset value. The RV-8803 also has an improved I2C interface compared to the RV-1805 RTC that removes the need to sequence commands/writes to the device. Best of all， the temperature compensation comes factory calibrated. Utilizing our handy Qwiic system so no soldering is required to connect it to the rest of your system. However， we still have broken out 0.1"-spaced pins in case you prefer to use a breadboard.。Adding a real-time clock to your project is the perfect way to get more accurate data； timing or otherwise. Using the Qwiic connector makes for a fast， solid way to incorporate this into your project. The RTC module has counters for hundredths of seconds， seconds， minutes， hours， date， month， year and weekday with a number of alarm and interrupt settings available as well. Plus the large operating temperature range(-40 to +105℃)and temperature compensated crystal makes for a good addition for field applications or harsh environments.。The SparkFun Qwiic Connect System is an ecosystem of I2C sensors， actuators， shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch， 4-pin JST connector. This reduces the amount of required PCB space， and polarized connections mean you can't hook it up wrong.。Get Started with the SparkFun RV-8803 Real Time Clock Module Guide。Features。Factory Calibrated Temperature Compensation。High Time Accuracy。±1.5 ppm 0 to +50℃。±3.0 ppm -40 to +85℃。±7.0 ppm +85 to +105℃。1.5V to 5.5V Operating Voltage Range。240nA @ 3.3v Low-Power Consumption。I2C Address：0x32。Periodic Countdown Timer Interrupt function。Periodic Time Update Interrupt function(seconds， minutes)。Alarm Interrupts for weekday or date， hour and minute settings。External Event Input with Interrupt and Time Stamp function。Programmable Clock Output pin for peripheral devices.。Operating temperature range：-40 to +105℃。2x Qwiic Connectors

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