Project Title: Heart Beats - Bass Note Detector Overview: Conceived and developed "Heart Beats," a solo endeavor aimed at creating a cost-effective, portable bass note detector with digital filters for precise bass detection and PID-controlled AGC to maintain consistent performance across a wide dynamic range. The system features an LED indicator for real-time feedback upon detecting a bass note, all powered by a single AAA battery. The pendant-style enclosure, crafted using Fusion 360, adds both functionality and aesthetics to the product. Project Objectives:

1. Objective 1: Design a low-cost bass note detector capable of handling a wide dynamic range.
2. Objective 2: Implement digital filters for accurate bass note detection in music.
3. Objective 3: Utilize PID controlled AGC to maintain consistent performance across varying input levels.
4. Objective 4: Design a portable product with a compact form factor.
5. Objective 5: Create an aesthetically pleasing pendant-style enclosure using Fusion 360. Role and Responsibilities: As the sole developer: • Conducted market research to identify the need for a portable and affordable bass note detector. • Developed digital filter algorithms for accurate bass note detection. • Engineered the hardware components, incorporating PID controlled AGC for dynamic range adjustment. • Designed and prototyped the low-power circuit ensuring compatibility with a single AAA battery. • Utilized Fusion 360 to design a pendant-style enclosure for user-friendly and stylish portability. Design Process:
6. Conceptualization: Identified the need for a portable bass note detector and outlined the key features required.
7. Algorithm Development: Developed digital filters for precise bass note detection over a wide dynamic range.
8. Hardware Implementation: Designed the hardware components, incorporating PID controlled AGC for dynamic range adjustment.
9. Power Efficiency: Engineered a low-power circuit to ensure portability with a single AAA battery.
10. Enclosure Design: Utilized Fusion 360 to design a pendant-style enclosure, considering both aesthetics and practicality. Key Features:
11. Digital Filters: Implemented digital filters for precise bass note detection over a wide dynamic range.
12. PID Controlled AGC: Utilized PID control for Automatic Gain Control, ensuring consistent performance.
13. Portability: Powered by a single AAA battery for on-the-go use without compromising performance.
14. Compact Form Factor: Designed for easy portability and convenient use.
15. LED Indicator: Illuminates an LED upon detecting a bass note, providing real-time feedback to the user.
16. Pendant-style Enclosure: Designed a stylish and user-friendly pendant enclosure using Fusion 360. Tools and Technologies:
17. Algorithm Development: MATLAB for digital filter development.
18. Hardware Design: Altium Designer for schematic and layout.
19. Enclosure Design: Fusion 360 for 3D modeling and design. Results and Achievements: The "Heart Beats" project stands as a testament to individual innovation, successfully delivering a cost-effective, portable, and stylish bass note detector with precise digital filtering and PID-controlled AGC. The incorporation of a single AAA battery ensures portability, making it an ideal companion for music enthusiasts on the go. Lessons Learned: The project provided valuable insights into optimizing power consumption while maintaining performance. The Fusion 360 enclosure design emphasized the importance of both functionality and aesthetics in user-oriented products. Conclusion: The "Heart Beats" project exemplifies the capabilities of an individual developer in integrating digital signal processing, control systems, and industrial design to create a unique and portable bass note detector. The combination of accurate bass detection, PID-controlled AGC, and a stylish pendant-style enclosure makes "Heart Beats" a standout product in the market. Additional Resources: • Link to Schematic Diagram • Link to Fusion 360 Enclosure Model