SparkFun will be closed May 25, 2015 for Memorial Day. Orders placed after 2pm on Friday the 22nd will ship out on Tuesday. Thanks!



Member Since: September 7, 2010

Country: United States

A walk-through of building what turned out to be a complicated prop.

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We all know that women are not only a minority in technical fields, but are often not encouraged to go into such fields. Here are a few ways to encourage and support the girls/women in our lives who are interested in technical fields.

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Installing an Arduino Bootloader

December 4, 2013

This tutorial will teach you what a bootloader is, why you would need to install/reinstall it, and go over the process of doing so.

How to Use a Breadboard

May 14, 2013

Welcome to the wonderful world of breadboards. Here we will learn what a breadboard is and how to use one to build your very first circuit.
  • This board is not in conflict with any FCC regulations, but it is not FCC certified.

  • Yes, we are closed Monday for Memorial Day. I’ll see about getting a notice put up.

  • Try emailing techsupport@sparkfun.com. Also, there should be test code above, check that out and let us know what problems you are running into. It is a lot easier for people to help you fix a problem, then tell you step by step how to do it (especially when it is homework). Let us know what you tried and where you got stuck.

  • Arduino shields are not meant to sit flush with the top of the pin connectors. You should have a bit of space between the top of the headers and the board. If you are still having problems try emailing techsupport@sparkfun.com and include a picture of your setup if possible.

  • While I don’t see people using this as a simple Arduino replacement, I can see people starting with the Arduino configuration and code and then modifying it. If you need 30 analog pins you can write your Arduino code, open the Arduino configuration, remove the stuff you don’t need, add more analog pins and be done. It might take a bit of effort for the Arduino IDE to understand what you mean by A30, but being able to use all the prebuilt libraries for the pins you want is a nice feature. Just my $0.02

  • Skip software serial. On the Fio V3 the hardware serial is on D0/D1 (Serial1), but the USB connection is separate (Serial). Try that and if you are still having problems try emailing techsupport@sparkfun.com

  • Sorry, our supplier disappeared and the wire wasn’t selling well enough to warrant finding a new supplier. We did have 3 gauges, 2 colors and 3 lengths, most of it is now gone, so what you see is what you get.

  • The DTR pin on the FTDI boards is used to do a reset of the board to put it into bootloader mode. If you don’t have DTR broken out you will need to manually reset the board. Basically when the code is finished compiling and you see the white text giving you the file size etc., hit the reset button and it should work.

  • Yep, those electrons are funny. Many, many moons ago someone discovered electricity, they didn’t know about electrons, they just noticed things work. But they did know that directionality mattered, but what direction? Well they didn’t know, and didn’t have the ability to find out, so they guessed. Yep, they needed a standard so they could effectively talk about and use electricity and so they made one. Well, they guessed wrong (they had a 50/50 chance). Eventually we figured out about electrons and which way they were going, but by time we figured that out we couldn’t really go back and change the standard. So yes, electricity flows the opposite way the electrons do, because of the way we defined current many many years ago. While we do show how electrons actually flow in this tutorial, in the real world we generally just talk about electricity.

    As for the resistor, it doesn’t matter. A popular analogy for electricity is water flow. Think of a water pipe with a 1ft diameter as a wire, you have a source of water, that can pass up to 100 gallons/second through the pipe. That pipe is passing as much water as it can. You can put a pipe with a 1in diameter somewhere between your source and the end, and all of a sudden that 1ft pipe isn’t passing as much water. A resistor works similar to that smaller pipe. If you put it somewhere between your source and your end (power and ground) it will limit how much current there is all along that wire. Hope this makes some sense and good luck on your journey into electronics.

  • This is why we aren’t releasing them until June. This way you have time to finish all your other projects!

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