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Cost-Effective Notification Alert System for Hearing-Impaired Users

This project presents the 4th iteration of a Notification Alert System tailored for hard-of-hearing individuals. Our goals include reducing costs while optimizing performance, enhancing lighting functionality, and improving user experience through added features. Key components include a bed shaker, high-intensity LEDs, Bluetooth communication to Android devices, and a tablet stand functionality. We aim to create a reliable system that effectively alerts users to texts, calls, and emails, even without Bluetooth connection. Future enhancements will explore alternative chipsets and iOS compatibility.

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Cost-Effective Notification Alert System for Hearing-Impaired Users

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  1. Project P13037 Notification Alert System Mark Calem – Electrical Engineering Jared Lytle – Electrical Engineering Muhammad Ibrahim – Electrical Engineering Professor George Slack – Guide/ Mechanical Resource Professor Gary Behm–Customer

  2. 4thiteration of Notification Alert System for hard of hearing users. • Focused on reducing cost while optimizing performance • Improve lighting functionality • Switched to the MSP430 to reduce cost • Added functionality as a tablet stand Introduction

  3. To create a notification alert system • Wake user from sleep • Bed shaker • High intensity LEDs • Notify user of received texts, emails, phone calls • Color coded LEDs Objectives

  4. Bluetooth Communication to Android Devices • Alarm will be set from Android APP • Visual and Physical stimulus to wake user • Alarm will work when Bluetooth Communication is lost • Dock will contain a snooze and off button • Indicators for calls/texts/emails Customer Needs

  5. Specifications

  6. Software Architecture

  7. LED Selection

  8. Microcontroller Selection

  9. Notification LED Circuit

  10. High Intensity LED Schematic

  11. PCB Layout

  12. Mobile Application

  13. 22V Circuit - $3.11 • 3.3V Circuit – $1.26 • Bluetooth Module $30 • PCB Board - $12 • Miscellaneous components – 27.90 • Case – $6 • Total = $80.27 COST per 500 units

  14. 3.3V Circuit works as designed • 22V PCB Redone • Performance testing to be completed • Bluetooth Communication operational • Budget Specification not met Results

  15. To Reduce Cost • Design 120V to 12V Circuit • Switch to Different Bluetooth chip • Add Application for IOS Devices • Explore alternative lighting Future Considerations

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