Our new Simultaneous RFID Reader brings multitag tracking capabilities to the masses.

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Being able to program an ATtiny directly from Arduino can be a powerful tool to create low-cost embedded prototypes.

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Eliminate pesky decision-making with this randomized lunch picker!

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How to set up an Arduino as an in-system programmer (ISP) and program an Atmel ATtiny84A to blink

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When writing a library, pass in I2C ports to make the library more useful on different platforms.

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It's a known trick that we can use LEDs in reverse. We'll explore how to use them as photodetectors with Arduino and create a simple demo that responds to hand swipes.

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Here's how you can use boards with your Chromebooks in makerspaces, libraries and schools

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How to make your own seismometer to measure ground activity, such as earthquakes and volcanic eruptions.

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Our biggest sale on Arduino is happening all weekend, and we have new products as well!

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Just in time for Arduino Day, we're bringing you the magic of infographics.

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Deals so good you'll think we're joking, but we're not.

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Reagan talks about making the CubeRinth Maximus for Two Bit Circus.

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SparkFun's drivers for MS Windows are now signed!

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SparkFun: helping people throw stuff into space since 2003

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This post highlights my method of creating the control system for our AVC battle arena.

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Ever wonder how the Arduino IDE translates your code into instructions for the processor?

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Earlier today, Arduino announced a new partnership with Microsoft and special support for Windows.

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A look at implementing the Arduino blink.ino sketch as an explicit state machine. To further explore state machines, an alarm clock state diagram is drawn and implemented.

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NASA has a published standard for wiring that I saw recommended on a FIRST robotics site.…
Hey, Nick, Hope you passed! I first got my license back in ‘91. I’ve since upgraded to Extra. (My problems were with the Morse Code part –…
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This post reminds me why I love sparkfun!
If you know electronics and radio theory well enough, you might be able to pass all three in one go. My call sign is KM4HPK. You’ll pass at…
I once wanted to use RFID for drone racing. Now with this setup with the high gain antenna it’s possible. Right now we have a new system…
I take my Technician Class test tomorrow, wish me luck!
There are many UHF high-gain directional antennas on the market. We’ve got a good…
Which antenna is needed to read up to 16 feet?
The board has adjustable power output from 0dBm to 27dBm, meaning that with the correct antenna you can read up to 16 feet (4.9m), or 1 to 2…

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