S16: Laser Harp
Contents
Grading Criteria
- How well is Software & Hardware Design described?
- How well can this report be used to reproduce this project?
- Code Quality
- Overall Report Quality:
- Software Block Diagrams
- Hardware Block Diagrams
- Schematic Quality
- Quality of technical challenges and solutions adopted.
Project Title
Abstract
Our plan is to design a budget version of a laser harp. This can be accomplished using infrared LEDs and infrared sensitive photodiodes. The two diode system will emulate strings of a harp. When the infrared sensor has detected an note that is played, the microcontroller will read the input from the ADC and send out a control signal to the MIDI board and the corresponding sound will play from the speaker. Controls include changing the loudness of the speaker.
Objectives & Introduction
Show list of your objectives. This section includes the high level details of your project. You can write about the various sensors or peripherals you used to get your project completed.
Team Members & Responsibilities
- Abraham Carrillo
- Kristen Kan
Schedule
Show a simple table or figures that show your scheduled as planned before you started working on the project. Then in another table column, write down the actual schedule so that readers can see the planned vs. actual goals. The point of the schedule is for readers to assess how to pace themselves if they are doing a similar project.
| Week# | Date | Task | Status | Problems |
|---|---|---|---|---|
| 1 | 4/3 | Finalize following circuit designs and order parts
1. MIDI 2. ADC 3. Power Supply |
1, 2. Complete 3. In Progress | |
| 2 | 4/10 | 1. Interface MIDI with SJ One Board
2.Test recording and sound projection |
Complete | |
| 3 | 4/17 | 1. Lay out ADC, sensors, and power supply on prototype board
2. Calibrate sensors 3. Write drivers for ADC circuit |
Complete | |
| 4 | 4/24 | Basic input/output testing | Complete | |
| 5 | 5/1 | Volume/Instrument/Octave Changing | Complete | |
| 6 | 5/8 | Design improvements (Range/Sensitivity/Control) | In-Progress | |
| 7 | 5/15 | Final product testing | In-Progress | |
| 7 | 5/24 | Demo |
Parts List & Cost
| Part | Quantity | Price (Total) | Description |
|---|---|---|---|
| SJOne Board with LPC1758 | 1 | $80 | Main microcontroller |
| Adafruit VS1053 Breakout board | 1 | $25 | Sound Decoder, used to produce sounds |
| MCP3008 | 1 | $2.32 | Analog to Digital Converter |
| SFH 4550 | 7 | $2.87 | Infrared 850 nm diode |
| SFH 213 | 7 | 3.08 | Infrared Photodiode |
| 220 Ohm resistor | 7 | $0 | |
| Part | # | $ | |
| Part | # | $ |
Design & Implementation
The design section can go over your hardware and software design. Organize this section using sub-sections that go over your design and implementation.
Hardware Design
Discuss your hardware design here. Show detailed schematics, and the interface here.
Hardware Interface
In this section, you can describe how your hardware communicates, such as which BUSes used. You can discuss your driver implementation here, such that the Software Design section is isolated to talk about high level workings rather than inner working of your project.
Software Design
Show your software design. For example, if you are designing an MP3 Player, show the tasks that you are using, and what they are doing at a high level. Do not show the details of the code. For example, do not show exact code, but you may show psuedocode and fragments of code. Keep in mind that you are showing DESIGN of your software, not the inner workings of it.
Implementation
This section includes implementation, but again, not the details, just the high level. For example, you can list the steps it takes to communicate over a sensor, or the steps needed to write a page of memory onto SPI Flash. You can include sub-sections for each of your component implementation.
Testing & Technical Challenges
Describe the challenges of your project. What advise would you give yourself or someone else if your project can be started from scratch again? Make a smooth transition to testing section and described what it took to test your project.
Include sub-sections that list out a problem and solution, such as:
My Issue #1
Discuss the issue and resolution.
Conclusion
Conclude your project here. You can recap your testing and problems. You should address the "so what" part here to indicate what you ultimately learnt from this project. How has this project increased your knowledge?
Project Video
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Project Source Code
References
Acknowledgement
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References Used
List any references used in project.
Appendix
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