We rely on a vast network of devices that communicate autonomously to provide many of the services we use every day. However, the enabling technologies behind the Internet of Things (IoT) are often not taught in K-12 classrooms, in part due to the need for hardware. But most teens in the United States have smartphones. Thus, we introduce PhoneIoT, a mobile app that allows students to access their smartphones programmatically over the Internet. PhoneIoT supports access to live sensor data from the device and controlling a customizable display on the phone’s screen. PhoneIoT allows students to learn the fundamental concepts of distributed computing and networked sensing using NetsBlox, a simple but powerful extension of the Snap! block-based programming environment. Because both PhoneIoT and NetsBlox are free and open-source, instructors are able to teach these advanced computer science topics even remotely without extra hardware.
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Utilizing Smartphones for Approachable IoT Education in K-12
Distributed computing, computer networking, and the Internet of Things (IoT) are all around us, yet only computer science and engineering majors learn the technologies that enable our modern lives. This paper introduces PhoneIoT, a mobile app that makes it possible to teach some of the basic concepts of distributed computation and networked sensing to novices. PhoneIoT turns mobile phones and tablets into IoT devices and makes it possible to create highly engaging projects through NetsBlox, an open-source block-based programming environment focused on teaching distributed computing at the high school level. PhoneIoT lets NetsBlox programs—running in the browser on the student’s computer—access available sensors. Since phones have touchscreens, PhoneIoT also allows building a Graphical User Interface (GUI) remotely from NetsBlox, which can be set to trigger custom code written by the student via NetsBlox’s message system. This approach enables students to create quite advanced distributed projects, such as turning their phone into a game controller or tracking their exercise on top of an interactive Google Maps background with just a few blocks of code.
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- Award ID(s):
- 1949472
- NSF-PAR ID:
- 10408423
- Date Published:
- Journal Name:
- Sensors
- Volume:
- 22
- Issue:
- 24
- ISSN:
- 1424-8220
- Page Range / eLocation ID:
- 9778
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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- Free Publicly Accessible Full Text
-
Accepted Manuscript1.0
- Journal Article:
- https://doi.org/10.3390/s22249778
