For our final project with the Arduinos, we will be building an 8×8 common-row cathode LED array. With common-row cathode, the current sinks (negative voltage, ground) are attached to the rows (horizontal) and currents sources (positive voltage) runs through the columns (vertical). Here is a link to a good build:
Here is a good link to the .ZIP version of XAMPP:
https://sourceforge.net/projects/xampp/files/XAMPP%20Windows/5.6.24/
This version can be run from a folder straight out of a flash drive, for example.
There are a lot of nifty tools and features included in the HTML5 specification. One thing I enjoyed learning is the new <canvas> element. It allows you to draw directly on a web page using JavaScript!
Codecademy has a nice tutorial on how to use this element: Check it out here.
Here is a great article from Tested.com’s Norman Chan. In the article, Norm discusses the many ways for a 3D model to fail to print, and how to solve these problems or avoid them altogether.
http://www.tested.com/tech/3d-printing/460456-bits-atoms-3d-modeling-best-practices-3d-printing/
