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Empowering the Visually Impaired: Innovations with Arduino Uno in Assistive Technology

1/9/2024

Summary

My high school students are creating assistive devices for visually impaired individuals using the Arduino Uno platform. This project focuses on developing innovative digital mobility aids, utilizing ultrasonic sensors and small servo motors. These aids are designed to enhance spatial awareness for visually impaired users through sound and tactile feedback, alerting them to nearby objects. I am hopeful that this initiative provides practical, real-world applications of technology but also attempts instills a deep sense of empathy and innovation in my students.

Procedure

Kit Distribution: Students were given the SparkFun Inventor's Kit and an associated guide, challenging them to complete five distinct challenges. For product information, click here Access the digital "workbook" I provided for coding information and accountability tracking here.
Design Prompt: Students received the following task: "Using your SparkFun Inventor’s Kit, along with any additional materials (extra electronics, structural components, 3D printing, etc.), design a mobility aid for someone who is blind."
Initial Coding and Circuit Design: The first step involved using ChatGPT to generate potential codes and wiring instructions. The aim was to create basic circuits capable of moving a servo motor and sounding a buzzer when an object is detected 6 inches away. The specific prompt used was: "Provide code and a detailed wiring diagram for an Arduino UNO to sound a buzzer and move a servo motor when an object comes within 6 inches, using an ultrasonic sensor."
Prototype Development: Students then built and modified their circuits and codes, creating structures to support their mobility aids, such as earpieces and canes.
Prototype Testing and Feedback: Students tested each other's prototypes by navigating a simple maze. This allowed them to provide constructive feedback. To see a video of a prototype in action, click here (scroll to second video in post). Note: In this prototype, the servo motor alerts the user to obstacles through touch, while the buzzer does so through sound.

Robotics for Social Good: "Bomb Squad" Simulation

12/11/2023

In our Design for Social Good class, students were given a final project challenge: to apply their CAD, electronics, and Robotics skills to simulate robotics' applications in military and law enforcement. Our specific task was to create a user-friendly CAD-designed controller housing an Arduino Leonardo. This controller could remotely operate a robot, simulating the disarmament of a hypothetical explosive. Students controlled their robots from a different location by using their phones as cameras, which were mounted on the robots. They streamed video to their control station through platforms like Zoom or FaceTime. To understand the project instructions and grading criteria, click here. For documentation, students recorded their streamed video and added voice-over narration to explain the process. Below is an example:

Design for Social Good Curriculum

7/11/2023

This will be my third year teaching an elective course called "Design for Social Good". This summer I assigned myself the task of creating the entire curriculum in the form of a student digital workbook. The curriculum uses Fusion360 as an anchor, integrating CAD into various projects centered around Assistive Technology, Medicine, and Robotics. Additionally, I tired to integrate AI into the curriculum in meaningful ways, asking students to generate YouTube shorts using ChatGPT and Pictory I am hopeful that this curriculum provides a unified and organized space for students to engage in the curriculum. Because students will be copying and sharing their own workbooks, I am slightly nervous about how to push out to students the inevitable tweaks to the curriculum I will make throughout the year. Live and learn I suppose! Click here to access the curriculum. Note: Links to Fusion360 homework assignments can be found in the heading of each page.

Simplifying Project Instructions Using Speaker Notes

5/24/2023

Keeping in my my constant goal of managing the extraneous cognitive load of my teaching materials while simultaneously maintaining a high level of rigor, I have been tinkering with leveraging the "Speaker Notes" to streamline the location of project instructions, links, and rubrics.

See a few screenshots below from a recent project in my Biochemistry class where all instructions were provided in the Speaker Notes of the appropriate slide. I am enjoying this method of material delivery as it:

a) provides all resources for students in one location and...
b) allows for specific pieces of instruction to be strategically placed within their associated slide.

Additionally, the ability to hyperlink text to speaker notes allows for the inclusion of useful and expansive materials and instructions.

Merging Biology and Physics: Optics of a Cow Eye Lens

5/15/2023

If you have been following my recent posts, merging the physical and life sciences is a passion of mine. Currently we are studying optics in my introductory physics class. Using preserved cow eyes left over from a biology dissection last semester, I challenged students to remove the lens from the eye, and using, determine the focal length of the lens experimentally. Below is are videos of initial student exploration once the lenses have been removed.

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