Why Arduino when you can Pi?

The greatest advantage to using the Arduino family of microcontrollers for DIY electronics projects, is that they are ubiquitous.  Since they are so available, they are inexpensive and you can find open-source software to get started.

If you’ve ever had the opportunity to work with an Arduino Uno microcontroller board, then you’ve probably executed the flashing LED example.  Going further, you might attach a button, or switch, to trigger the LED or to turn it off making the project interactive.  There are many sensors that could be connected to the Arduino Uno and setup to trigger events, such as the LED flashing, using threshold values that we would need to experiment with in order to figure out what settings work best for creating the effect we want.

Hot Stuff

Rather than use a cyanoacrylate or superglue, I use hot glue to keep the connections in place.  I used to have a negative perception of using hot glue because it seemed amateur and trashy. After having dismantled many Furbies and Talking Elmos, I see it frequently makes it in the final product.  I’ve since reconsidered, and now, I like hot glue because it is convenient and can be removed later if there is a need to check a connection or replace a part.