Project

# Title Team Members TA Documents Sponsor
49 Smart Sports Scoreboard, Version 2
 Matthew Rosenbaum
Max Mitchell
Michael Manning
 Daniel Vargas design_document1.pdf
design_document2.pdf
final_paper1.pdf
proposal1.pdf
# Team Members:
-Michael Manning, mem8\
-Max Mitchell, maxem2\
-Matthew Rosenbaum, mer5

# Problem:
When people aren't watching a game for a team they're fans of, they have to constantly check their phone and refresh it. This can lead to over-excessive screen time. Additionally, the person may be in the middle of an important conversation, event, or phone call. This can be very anti-social in nature, frowned upon, and a waste of time. It is similar to having a clock on the wall or on one’s wrist, as opposed to constantly picking up the phone to check the time.

# Solution Overview:
Our group will create a wall mounted display that allows users to specify their favorite sports teams and receive notifications about that team’s recent games and scores in the form of an LED matrix panel, LED accent lights, and a microphone. There will be several settings for changing the appearance of the display, but one example will be showing the current score of a game that is in progress, and green/red accent lights showing the result of the most recent game. The device will use a WIFI chip to connect to the home’s internet and either scrape the score/game information from the web or use an available API. There will also be a web application that users can connect to locally to choose their favorite teams and one of several visual options that will be available.

# Solution Components:
Subsystem 1: 64x32 (or larger) LED Matrix display using addressable LEDs to show the current score of the game, or the record of the team. Addressable LEDs allow us to use a limited number of GPIO pins while still driving a large number of LEDs. LED Matrix will have internet connectivity.

Subsystem 2: ESP8266 WIFI Chip to scrape sports data and host the web interface for users to pick their favorite teams and change visual settings.

Subsystem 3: Microphone and Noise Interpretation to provide an interactive fan experience. Is able to measure fan noise in the room and use the loudness to display different intensities on the LED Matrix. The more intense the reaction (i.e. yelling or screaming), the more intense display.

Subsystem 4: Amplifier and Speaker for key game announcements. Informing the user that the game has started, it is half-time, the team took a 10-point lead, etc.

# Criterion for Success:
A successful scoreboard system is able to constantly fetch and display accurate data through a LED matrix in a visually appealing and easy to understand way. It is crucial to have a functioning interface between the LED Matrix and WIFI chip, such as an ESP32. It also must have an easy to use web interface for picking the favorite teams and changing the visual modes of the display. The LED matrix and microphone system must properly coincide with the outcome of the game, and must be time-synchronized to avoid confusion or misleading information.

Musical Hand

Ramsey Foote, Thomas MacDonald, Michelle Zhang

Musical Hand

Featured Project

# Musical Hand

Team Members:

- Ramesey Foote (rgfoote2)

- Michelle Zhang (mz32)

- Thomas MacDonald (tcm5)

# Problem

Musical instruments come in all shapes and sizes; however, transporting instruments often involves bulky and heavy cases. Not only can transporting instruments be a hassle, but the initial purchase and maintenance of an instrument can be very expensive. We would like to solve this problem by creating an instrument that is lightweight, compact, and low maintenance.

# Solution

Our project involves a wearable system on the chest and both hands. The left hand will be used to dictate the pitches of three “strings” using relative angles between the palm and fingers. For example, from a flat horizontal hand a small dip in one finger is associated with a low frequency. A greater dip corresponds to a higher frequency pitch. The right hand will modulate the generated sound by adding effects such as vibrato through lateral motion. Finally, the brains of the project will be the central unit, a wearable, chest-mounted subsystem responsible for the audio synthesis and output.

Our solution would provide an instrument that is lightweight and easy to transport. We will be utilizing accelerometers instead of flex sensors to limit wear and tear, which would solve the issue of expensive maintenance typical of more physical synthesis methods.

# Solution Components

The overall solution has three subsystems; a right hand, left hand, and a central unit.

## Subsystem 1 - Left Hand

The left hand subsystem will use four digital accelerometers total: three on the fingers and one on the back of the hand. These sensors will be used to determine the angle between the back of the hand and each of the three fingers (ring, middle, and index) being used for synthesis. Each angle will correspond to an analog signal for pitch with a low frequency corresponding to a completely straight finger and a high frequency corresponding to a completely bent finger. To filter out AC noise, bypass capacitors and possibly resistors will be used when sending the accelerometer signals to the central unit.

## Subsystem 2 - Right Hand

The right subsystem will use one accelerometer to determine the broad movement of the hand. This information will be used to determine how much of a vibrato there is in the output sound. This system will need the accelerometer, bypass capacitors (.1uF), and possibly some resistors if they are needed for the communication scheme used (SPI or I2C).

## Subsystem 3 - Central Unit

The central subsystem utilizes data from the gloves to determine and generate the correct audio. To do this, two microcontrollers from the STM32F3 series will be used. The left and right hand subunits will be connected to the central unit through cabling. One of the microcontrollers will receive information from the sensors on both gloves and use it to calculate the correct frequencies. The other microcontroller uses these frequencies to generate the actual audio. The use of two separate microcontrollers allows for the logic to take longer, accounting for slower human response time, while meeting needs for quicker audio updates. At the output, there will be a second order multiple feedback filter. This will get rid of any switching noise while also allowing us to set a gain. This will be done using an LM358 Op amp along with the necessary resistors and capacitors to generate the filter and gain. This output will then go to an audio jack that will go to a speaker. In addition, bypass capacitors, pull up resistors, pull down resistors, and the necessary programming circuits will be implemented on this board.

# Criterion For Success

The minimum viable product will consist of two wearable gloves and a central unit that will be connected together via cords. The user will be able to adjust three separate notes that will be played simultaneously using the left hand, and will be able to apply a sound effect using the right hand. The output audio should be able to be heard audibly from a speaker.

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