Project Information

Project Background

This capstone was developed for the EEE 120 course, Digital Design Fundamentals at Arizona State University in Spring 2021 under the instruction of Dr. Alicia Baumann. Some of the technical knowledge and skills developed in this capstone include but aren't limited to:

  • Digital Design
  • Finite State Machine
  • Logic and Flip-Flops

Abstract

In a theoretical project, a team of engineers are to develop an autonomous wheelchair and this particular project is to develop the finite machine to move the wheelchair lalterally. There are two inputs, left and right, and two outputs, far right and far left. If the automation inputs identify that it has traveled a certain number of units to the right or left, the outputs will be high. Each state will be defined as different position units left and right, up to 3 on each side.


Inputs

Criteria

    Speed of Automation

    Accessibility

    Price

    Realiability

    Battery Life

Design 1 - Asynchrnous Reset

Assumptions

Given the input 11, there will be an asynchrnous reset, which will allow for manual control of the wheelchair. After nearing the furthest distance, the automation will continue to stay in the same position so that it will not ram into a wall.




State Definitions

Gearbox

State Transition Diagram

Design 1


Equations

3 D Flip-Flops. Minimum SOP Equations

D2 = Q2Q1 + L'Q2Q0' + LQ1