Development of a CTE Project: An IoT Electronic Thermometer, Part 2: Page 2 of 3

and the equivalent calculated Fahrenheit values. Graphs can be plotted in Excel to show the relationship of the two temperature scales, thus teaching data visualization and technical interpretation skills, as well.

Prototype Demonstration

With the health thermometer PoC working properly, students will be able to present their products' functional results to the class. Students will discuss the data recorded on Excel spreadsheets and the conversion calculations with classmates. This prototype demonstration activity implements the Alabama State Department of Education's College and Career Readiness Indicator (CCRI) requirement of language arts skills. It's important that all STEM and CTE students demonstrate language arts through verbal communications. The prototype demonstration and data presentation parts of the project and curriculum meet this objective in a hands-on, creative, and technical environment.

Also, the prototype demonstration activity illustrates to STEM and CTE students the importance of communicating engineering design/development progress and technical concerns to the customers of their products.

Revise PoC Prototype for Manufacturability

To illustrate the manufacturing phase of this IoT project, I plan to teach a session on process flow diagrams to my CTE electronics technology students. The process flow diagram provides the methods and techniques for the assembly phase of manufacturing an electronic product. My CTE students will use Excel to design their process flow diagrams for the health thermometer product.
Excel has a wealth of drawing tools that can be used in creating a process flow diagram. By showing the basic symbols used in creating a process flow diagram, the educational training behind this lab exercise is to allow students to design the manufacturing build of the health thermometer. Also, this assembly build exercise will illustrate how to revise a PoC prototype for manufacturing production.

The Health Thermometer Product Launch

The final phase of the IoT project is to provide an outreach element to the curriculum. The approach I plan to take is to have a live demonstration and discussion with the school's health science instructor and students. By allowing my students to discuss the operation and engineering that went into developing this healthcare product with the target audience, the education intent is to illustrate the final completion of the project: a product launch into the hands of the customer.

Also, the big picture to this hands-on technology curriculum is to illustrate to my students that the future of IoT and IoE (Internet of Everything) development can be created in today's classroom. As progress of this curriculum continues, I plan to provide updates here in my Design News articles. Stay tuned!

Don Wilcher is a passionate teacher of electronics technology and an electrical engineer with 26 years of industrial experience. He's worked on industrial robotics systems, automotive electronic modules/systems, and embedded wireless controls for small consumer appliances. He's also a book author, writing DIY project books on electronics and robotics technologies. His latest book, Make: Basic Arduino Projects, published by Maker Media, is on the Alabama State Department's approved Career and Technical Education (CTE) reading list. He's currently developing 21st century educational training products and curriculum focusing on Internet of Things (IoT) and Industrial

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