{"id":22257180,"url":"https://github.com/ysayaovong/synchronous-sequential-machines","last_synced_at":"2025-07-28T07:31:41.454Z","repository":{"id":251359371,"uuid":"837198077","full_name":"YSayaovong/Synchronous-Sequential-Machines","owner":"YSayaovong","description":"This repository contains the EE120 Capstone Project, showcasing work on key electrical engineering concepts, including circuit design, analysis, and practical implementations.","archived":false,"fork":false,"pushed_at":"2024-11-26T12:57:56.000Z","size":398,"stargazers_count":1,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"main","last_synced_at":"2024-11-26T13:32:07.257Z","etag":null,"topics":["capstone-project","circuit-design","eee120","electrical-engineering","project-implementation"],"latest_commit_sha":null,"homepage":"","language":null,"has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/YSayaovong.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2024-08-02T12:25:19.000Z","updated_at":"2024-11-26T12:57:59.000Z","dependencies_parsed_at":"2024-09-13T03:37:40.889Z","dependency_job_id":null,"html_url":"https://github.com/YSayaovong/Synchronous-Sequential-Machines","commit_stats":null,"previous_names":["ysayaovong/ee120---capstone-project"],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/YSayaovong%2FSynchronous-Sequential-Machines","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/YSayaovong%2FSynchronous-Sequential-Machines/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/YSayaovong%2FSynchronous-Sequential-Machines/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/YSayaovong%2FSynchronous-Sequential-Machines/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/YSayaovong","download_url":"https://codeload.github.com/YSayaovong/Synchronous-Sequential-Machines/tar.gz/refs/heads/main","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":227877881,"owners_count":17833559,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["capstone-project","circuit-design","eee120","electrical-engineering","project-implementation"],"created_at":"2024-12-03T08:09:50.220Z","updated_at":"2024-12-03T08:09:51.309Z","avatar_url":"https://github.com/YSayaovong.png","language":null,"funding_links":[],"categories":[],"sub_categories":[],"readme":"# Synchronous Sequential Machines\n\nThis repository documents the design, development, and simulation of a synchronous sequential machine to control a motorized wheelchair based on stakeholder requirements. The project emphasizes user-friendly design, safety, compactness, and minimal use of logic gates.\n\n## Project Overview\n\nThe project was undertaken as part of coursework in Spring 2022. The objective was to design a finite state machine to control the motion of a wheelchair. The design considers inputs from a joystick to determine motor directions while incorporating safety and functional requirements.\n\n## Features\n\n- **Joystick Control**: Implements joystick-based input for intuitive forward, backward, left, and right movement.\n- **Safety Mechanisms**: Includes features such as error indicators for invalid joystick inputs.\n- **LED Indicators**: Displays movement status and error signals.\n- **Compact Design**: Optimized state transitions with minimal logic gates.\n- **User-Centric Design**: Designed with stakeholder feedback to ensure ease of use and practical functionality.\n\n## Design Process\n\n### 1. Stakeholder Interviews\n- Identified user needs, including lightweight design, safety straps, and joystick controls.\n- Incorporated feedback into the machine's design criteria.\n\n### 2. State Definitions\n- Designed states for movement (e.g., center, first left, first right, etc.).\n- Developed a state definition table:\n\n| State | Binary | Description    |\n|-------|--------|----------------|\n| S0    | 000    | Center         |\n| S1    | 001    | First Left     |\n| S2    | 010    | Second Left    |\n| S3    | 011    | Third Left     |\n| S4    | 100    | First Right    |\n| S5    | 110    | Second Right   |\n| S6    | 111    | Third Right    |\n\n### 3. Design Evaluation\n- Developed multiple designs and evaluated them using criteria such as:\n- Minimal gates (15%)\n- Safety (30%)\n- Compactness (20%)\n- User-friendliness (30%)\n- Chose the best design based on the weighted evaluation.\n\n### 4. Implementation and Simulation\n- Simulated the winning design using Digital simulation software.\n- Verified state transitions, outputs, and functionality through rigorous testing.\n\n## Final Equations and Logic Gates\nThe following equations were implemented to achieve the desired state transitions:\n- Q2: `Q1Y’ + Q1’X’ + Q0X’ + QZQ0X + Q1’Q0’XY + Q2’QZ’Q0XY`\n- Q1: `Q0’X’Q2 + Q2’Q1’Q0X + Q2’Q1Q0’Y’ + Q2’Q1Q0X’ + Q2Q1Q0Y’ + Q2Q1’Q0’Y`\n- Q0: `Q0X’Y’ + Q0XY + Q0’X’Y + Q0XY’`\n\n## Testing\nThe circuit was tested under various scenarios to ensure proper functionality. Testing included:\n- Validating joystick input handling.\n- Checking expected vs. actual outputs.\n- Ensuring the error indicator activated for invalid inputs.\n\n## Video Demonstration\nA demonstration video of the final design is available:\n- [YouTube Link](https://youtu.be/DAnCLOoJpyQ)\n\n## Repository Contents\n- **Design Documentation**: Includes state diagrams, Karnaugh maps, and transition tables.\n- **Simulation Files**: Digital simulation files for the winning design.\n- **Test Results**: Testing plans and results for the circuit.\n\n## Conclusion\nThis project demonstrates the successful implementation of a synchronous sequential machine tailored to stakeholder needs. The design balances technological, societal, and environmental considerations, ensuring practicality and reliability.\n\n---\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fysayaovong%2Fsynchronous-sequential-machines","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fysayaovong%2Fsynchronous-sequential-machines","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fysayaovong%2Fsynchronous-sequential-machines/lists"}