Although not an original idea this paper presents the elegance of using a Raspberry Pi as the data collection and analysis tool.  As I was reading though the description It occurred to me that a Arduino has a built in A/D converter and may simplify the circuit connections.  However, I now realize that using a Arduino would require a bunch of software and setup on a dedicated computer (laptop or desktop) to analyses the data.  The Raspberry Pi is an affordable all-in-one solution.  
The first experiment (turning on and off an LED) is a really great place to start.  Students get immediate feedback to see how a few lines of code can impact something in the "real world".  I would assume that instructors would mention that if we can turn on an LED we could turn on a variety of devise such as a relay to turn on a light or a coffee maker.  Although the primary learning goal is to understand resisters and circuits, i think connecting what they are doing to engineering is a powerful motivator for many students.  I like that that this simple and easy project could truly spark creativity in the students.
I also really like that the code is so simple that it can be included inside the paper.  Although most of the meat is hidden inside of the libraries the resulting code is extreamly easy to read and so short thaat it can be included in the paper.  As someone who teaches Python and is familar with cuircuits I can emediatly see the benefit of this apprach.  Even for novice students, I do not think that learning the coding parts will overshadow the primary learning goals. 
A few things I would like to see:
- It would be nice to save the data to a file for post analysis. Again, this is not really necisary and directly alined with the learning goals but it would be easy and give students the ability to work with the data outside the lab. 
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https://roderickvella.wordpress.com/2016/06/28/raspberry-pi-gpio-emulator/
I really want to see this technique used in a remote lab.  I think students could purchase a Raspberry Pi kit for less than the cost of a  textbook ($<100) and set up a lab in their own home.  This would add a huge layer of complexity as students would then need to install the OS and figure out how to connect things on their own.  However, the nice thing about this setup is that it would work really well in our current remote learning world.  As soon as this paper comes out I plan to share with a college who is currently teaching bassic cuircuts could really benefite form thi
As hands-on, on-line learning is a hot topic right now I wonder if similar articles could be found and put into a special issue?  I guess I don’t know how long it takes to put a special issue together.