Working with the Occupational Therapy Masters Program
Drake University in Des Moines, Iowa
This project involved the design and prototyping of a hands-free rotating iPad case developed as an assistive technology solution for a client with cerebral palsy and limited upper-extremity range of motion. The objective was to enable independent control of iPad orientation through a simple, low-effort input mechanism.
The system integrates a momentary push-button input connected to a microcontroller-controlled servo motor housed within the case structure. Custom code was written to toggle the servo between two fixed rotational states, enabling precise 90-degree rotation of the iPad between portrait and landscape orientations. Upon initial button activation, the servo rotates the device 90 degrees; a subsequent press returns the system to its original position, creating a deterministic and repeatable control loop.
Mechanical constraints within the case were designed to support the weight of the iPad while maintaining controlled motion and positional stability during rotation. Electrical components were embedded to minimize visual clutter and preserve usability, while the button interface was positioned and sized to accommodate limited motor control.
This project demonstrates the integration of industrial design, mechanical prototyping, electronics, and embedded programming to create a functional assistive device. It highlights the application of user-specific constraints to inform technical decision-making, resulting in a reliable, accessible, and human-centered mechatronic system.