{"title":"Arduino","description":"\u003cp\u003eBrowse our Arduino collection. New Arrival.\u003c\/p\u003e","products":[{"product_id":"in-line-power-switch-for-21mm-barrel-jack","title":"In-line Power Switch for 2.1mm Barrel Jack","description":"\u003cp\u003eAdd a power switch to \u003cem\u003eany\u003c\/em\u003e project simply by plugging this between the power supply. This is the most useful thing you never knew you needed! You'll want to pick up a bunch for your electronic projects.\u003cbr\u003e\u003cbr\u003eComes with a 5.5\/2.1mm barrel jack on one end an a plug on the other. In between is an in-line switch that is rated for 125V and 2Amps (its normally used for lamps, we suppose). 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Built to be a new standard for mobile microcontroller platforms, Feather combines USB connectivity, battery support, and a consistent form factor across the range.\u003c\/p\u003e\n\u003cp\u003eThe Adafruit Feather 32u4 Adalogger is Adafruit’s take on an all-in-one datalogger (or data reader). It’s based on the Feather 32u4 and adds a built-in microSD cardholder, making it ready for logging sensor data or reading files straight out of the box.\u003c\/p\u003e\n\u003cp\u003eAt its core is the ATmega32u4, running at 8 MHz with 3.3 V logic—the same proven setup used on the Adafruit Flora. The chip provides 32 KB of flash and 2 KB of RAM, along with native USB support. This means no external USB-to-serial chip is needed, and the board can also act as a USB HID device, such as a mouse, keyboard, or USB MIDI controller.\u003c\/p\u003e\n\u003cp\u003eDesigned with portability in mind, the Feather 32u4 Adalogger includes a JST connector for 3.7 V lithium polymer batteries and onboard battery charging. It can run directly from the micro USB connector, from a battery, or automatically switch between the two when USB power is available. The battery voltage is routed through a resistor divider to an analogue pin, allowing you to monitor battery levels and know when it’s time to recharge.\u003c\/p\u003e\n\u003cp\u003eThe extra board space is used to add data-logging essentials:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMicroSD cardholder for reading or writing large amounts of data\u003c\/li\u003e\n\u003cli\u003eGreen LED on pin #8 for status indication or simple debugging\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe board ships fully assembled and tested, with a USB bootloader pre-installed for quick use with the Arduino IDE. Header pins are included but not soldered. \u003cstrong\u003eLiPo battery, microSD card, breadboard, JST cable and USB cable are not included.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003e\n\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/NneG1LLdyxs?si=Ib2hnrtGYDwmOOb0\u0026amp;start=660\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eATmega32u4 @ 8MHz with 3.3V logic\/power\u003c\/li\u003e\n\u003cli\u003e3.3V regulator with 500mA peak current output\u003c\/li\u003e\n\u003cli\u003eUSB native support, comes with USB bootloader and serial port debugging\u003c\/li\u003e\n\u003cli\u003eYou also get tons of pins - 20 GPIO pins\u003c\/li\u003e\n\u003cli\u003eHardware Serial, hardware I2C, hardware SPI support\u003c\/li\u003e\n\u003cli\u003e7 x PWM pins\u003c\/li\u003e\n\u003cli\u003e10 x analogue inputs\u003c\/li\u003e\n\u003cli\u003eBuilt in 100mA lipoly charger with charging status indicator LED\u003c\/li\u003e\n\u003cli\u003ePin #13 red LED for general purpose blinking\u003c\/li\u003e\n\u003cli\u003ePower\/enable pin\u003c\/li\u003e\n\u003cli\u003e4 mounting holes\u003c\/li\u003e\n\u003cli\u003eReset button\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMeasures 51mm x 23mm x 8mm - without headers\u003c\/li\u003e\n\u003cli\u003eWeight - 5.1 grams\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRevision History\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAs of July 26, 2023 \u003c\/strong\u003e– We've updated this PCB with Adafruit Pinguin to make a lovely and legible silkscreen - you may get the new PCB or the older version with vector fonts - both are identical other than the fancy silkscreen.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eResources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDatasheet\u003c\/li\u003e\n\u003cli\u003eTutorial\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1x Adafruit Feather 32u4 Adalogger\u003c\/li\u003e\n\u003cli\u003e2x 16-pin headers\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":54079443468399,"sku":"qer1787257300093","price":13.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/3376\/0111\/files\/adafruit-feather-32u4-adalogger_1.jpg?v=1787257308"},{"product_id":"featherwing-doubler-prototyping-add-on-for-all-feather-boards","title":"FeatherWing Doubler - Prototyping Add-on For All Feather Boards","description":"\u003cp\u003e\u003cem\u003e\u003cstrong\u003eThe Adafruit FeatherWing Doubler lets you stack and use two FeatherWings side-by-side, with full pin breakouts and prototyping space for custom additions.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003eThe Adafruit FeatherWing Doubler is a handy prototyping add-on for all Feather boards, similar to the FeatherWing Proto — but with two full sets of Feather connections side-by-side. The real advantage comes when you stack your Feather and another FeatherWing onto the Doubler, allowing both boards to sit next to each other and operate simultaneously. It’s ideal when you need access to two FeatherWings at once without sacrificing pins or flexibility.\u003c\/p\u003e\n\u003cp\u003eThe Doubler includes one Doubler PCB, one set of Feather stacking headers (which can be trimmed after soldering if you prefer a slimmer, non-stacking build), and one set of Feather female headers. Like the Proto, it provides a duplicate breakout for every Feather pin along with a generous grid of prototyping holes. The two sets of pins are cross-connected, and for GND and 3.3V there’s a full strip of connected pads for easy power distribution.\u003c\/p\u003e\n\u003cp\u003eThe Doubler comes as a small kit, so you’ll need to solder the female headers and\/or stacking headers in the configuration that suits your build.\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/BpEgPFR5dtY?si=dM19iRP7eACOEknn\u0026amp;start=876\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions: 50.9mm x 47mm x 1.6mm\u003c\/li\u003e\n\u003cli\u003eWeight: 6.7g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eResources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFritzing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFeatherWing Doubler - Prototyping Add-on For All Feather Boards\u003c\/li\u003e\n\u003cli\u003e1x Doubler PCB\u003c\/li\u003e\n\u003cli\u003e1x set of Feather Stacking Headers (you can cut these down after soldering so they aren't stacking-style if you want a slimmer build)\u003c\/li\u003e\n\u003cli\u003e1x set of Feather Female Headers\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":54079443501167,"sku":"wka1787257300194","price":4.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/3376\/0111\/files\/featherwing-doubler---prototyping-add-on-for-all-feather-boards_1.jpg?v=1787257309"},{"product_id":"sunfounder-i2c-line-follower-8-channel-discontinued","title":"SunFounder i2c Line Follower - 8 Channel [Discontinued]","description":"\u003cp\u003eThis is an 8-channel i2c Line Follower for your robotics projects!\u003c\/p\u003e\n\u003cp\u003eThe TCRT5000 infrared photoelectric switch adopts a high transmit power infrared photodiode and a highly sensitive phototransistor. 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We also include some header so you can solder it in and plug right into your Arduino-compatible, but you can also pick up a set of stacking headers to stack above\/below your board.\u003c\/p\u003e\u003cp\u003eWe've tested this with all our Metros and it should work just fine with them except the Metro M4 Airlifts (cause they already have WiFi!). \u003cstrong\u003eFor use in Arduino\u003c\/strong\u003e, the '328 and '32u4 you can do basic connectivity and data transfer but they do not have a lot of RAM so we don't recommend them - use the Metro M0, M4 or similar, for best results! \u003cstrong\u003eFor CircuitPython use\u003c\/strong\u003e, a Metro M4 works best - the M0 series does not have enough RAM in CircuitPython.\u003c\/p\u003e\u003cp\u003eThe firmware on board is a slight variant of the Arduino WiFiNINA core, which works great! 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