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# Title Team Members TA Documents Sponsor
43 Kitchen Dry Ingredient Tracker
Anju Jain
Nynika Badam
Sanjana Kumar
Vishal Dayalan design_document1.pdf
final_paper1.pdf
photo1.jpg
photo2.heic
photo3.heic
presentation1.pdf
proposal1.pdf
video
**Kitchen Dry Ingredient Tracker**

Team Members:
- Anju Jain (anjuyj2)
- Nynika Badam (nbadam2)
- Sanjana Kumar (spkumar4)

**Problem**

In our day to day lives, it's hard to keep track of ingredients in our kitchen and make sure we replenish it often. In order to remedy this, we propose a kitchen dry ingredient tracker.

**Solution**

Our system is designed to track and communicate with users about their ingredient necessities. Each individual ingredient tracker can be tailored to different lower weight threshold measurements.
Our system will use an app to maintain a digital grocery list. If an ingredient is running low, our system will add the ingredient to a digital grocery list. We also will have the option of adding the ingredient to the user's choice of online shopping cart. Users can remove ingredients' names from the list after purchase. ​​If a user is outside and is close to a grocery store (500 m), mobile app notification will be sent to the user's phone to notify them about necessary ingredient/s.

**Solution Components**

## Subsystem 1: LED
LED lights are placed at each ingredient and will light up when a certain percentage of total ingredients are low to indicate a more urgent grocery run.
Components: LEDs (from previous semester lab kits) or LED strip (12V-NB-CW-01M), LED Driver

## Subsystem 2: Weight Sensor
Our system will have 3 weight sensors to track 3 different ingredients. This can be extended for a system with more ingredients.
Each weight sensor will have a button to indicate if that weight sensor is active.
The weight sensor will be used to make sure the dry ingredient has not gone below the minimum weight limit.
Components: weight sensor Alpha (Taiwan) MF01A-N-221-A05, button (from previous lab kits)

## Subsystem 3: Microcontroller
Our system will be powered by plugging the microcontroller to the wall.
It will keep constant track of weight fluctuations for ingredients and send the data to the app.
It will be responsible for controlling individual ingredient’s LEDs.
Components: Microcontroller

## Subsystem 4: App
We will build an Apple based mobile app to provide connectivity between the user and the system.
User specifies which weight sensor station corresponds to what ingredient and its lower weight threshold (grams).
The app will maintain a digital grocery list.
If an ingredient is running low, our system will add the ingredient to a digital grocery list.
We also will have the option of adding the ingredient to the user's choice of online shopping cart.
Users can remove ingredients' names from the list after purchase.
​​If a user is outside and is close to a grocery store (500 m), mobile app notification will be sent to the user's phone to notify them about necessary ingredient/s.

# Criterion For Success
1. System should be able to measure changes in ingredient weights
- Add/Remove ingredient from grocery list/ online store shopping cart
2. Indicate when an ingredient needs replenishing through app
- mobile app should add ingredient name to digital shopping list
- Or add ingredient to an online store shopping cart
3. When many ingredients (2 out of 3) are low, LED lights should turn on around these ingredients
4. If the user’s phone is 500 m or less from a grocery store, mobile app should send reminder to visit the store if there are ingredients in the digital grocery list (if the user chose not to go the online shopping route)

Automatic Piano Tuner

Joseph Babbo, Colin Wallace, Riley Woodson

Automatic Piano Tuner

Featured Project

# Automatic Piano Tuner

Team Members:

- Colin Wallace (colinpw2)

- Riley Woodson (rileycw2)

- Joseph Babbo (jbabbo2)

# Problem

Piano tuning is a time-consuming and expensive process. An average piano tuning will cost in the $100 - $200 range and a piano will have to be retuned multiple times to maintain the correct pitch. Due to the strength required to alter the piano pegs it is also something that is difficult for the less physically able to accomplish.

# Solution

We hope to bring piano tuning to the masses by creating an easy to use product which will be able to automatically tune a piano by giving the key as input alongside playing the key to get the pitch differential and automatically turning the piano pegs until they reach the correct note.

# Solution Components

## Subsystem 1 - Motor Assembly

A standard tuning pin requires 8-14 nm of torque to successfully tune. We will thus need to create a motor assembly that is able to produce enough torque to rotate standard tuning pins.

## Subsystem 2 - Frequency Detector/Tuner

The device will use a microphone to gather audio measurements. Then a microprocessor processes the audio data to detect the pitch and determine the difference from the desired frequency. This can then generate instructions for the motor; direction to turn pegs and amount to turn it by.

## Subsystem 3 - User Interface/Display Panel

A small but intuitive display and button configuration can be used for this device. It will be required for the user to set the key being played using buttons on the device and reading the output of the display. As the device will tune by itself after hearing the tone, all that is required to display is the current key and octave. A couple of buttons will suffice to be able to cycle up and down keys and octaves.

## Subsystem 4 - Replaceable Battery/Power Supply

Every commercial product should use standard replaceable batteries, or provide a way for easy charging. As we want to develop a handheld device, so that the device doesn’t have to drag power wires into the piano, we will need a rechargeable battery pack.

# Criterion For Success

The aim of the Automatic Piano Tuner is to allow the user to automatically tune piano strings based on a key input alongside playing a note. We have several goals to help us meet this aim:

- Measure pitch accurately, test against known good pitches

- Motor generates enough torque to turn the pegs on a piano

- Tuner turns correctly depending on pitch

- Easy tuning of a piano by a single untrained person

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