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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We want to update our customers on where we stand with the on-going Arduino saga.

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Celebrate Arduino Day with these great deals!

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This coming Saturday, March 28th, is Arduino Day - celebrate with us!

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Recent Blog Comments

Hey Feldi, just curious about something: did you look at any other master’s programs in NYC before you chose NYU?
We, indeed, have seen them! Maybe check back in a few weeks? Maybe?
Have you seen the “flip pin” headers that work better with breadboards than the ordinary square pin ones?
Another way to skin this cat would be to put a small diode in series with the LED to be able to use the reverse breakdown of the diode…
You missed one of the best features on the Teensy 3.5/3.6: Just add a battery and you have a fully battery-backed RTCC (Real Time Clock…
Your repair looks good! One thing I hope doesn’t bite you, the DC voltage now available on the lamp power rails will be a bit higher than…
Sorry about that. Should be fixed now!
I went to the product page for the new IMU, and the link to the schematic pdf is dead.
I had a similar background. Got Ham License at 14, went to engineering school. Worked for Bell Labs for many years. I still like to build…
Great write up on a beautiful piece of gear!

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