# Title Team Members TA Documents Sponsor
24 Smart Closet
Luchuan Zhang
Yiwei Li
Luke Wendt design_document0.pdf
The problems: It's hard for people to organize their clothes in traditional closet, and easily forget which clothes they already have when they want to buy new clothes online or in store. Forget which clothes should do laundry.

Existed solutions: Mostly are customized traditional closets. Some smart closet apps need users to take pictures and upload, too time-consuming. And these apps do not associated with users' closets.

Our solution: The closet will take pictures of any new add clothes. It will count the days you worn each clothes and display on the phone. It can indicate which clothes to pick and to wash by different color of LED on clothes hanger and notice you when the laundry basket is full.

Hardware: A motor controlled rotatable rack. On the rack there are around 20 gates to place clothes, each gate has a number assigned. A control panel (micro controller is expected) decides how long rack should rotate, when to photo, and use WiFi to connect with phone. A photo booth aside. LED system to indicate which clothes to pick also controlled by micro-controller. Weight sensor to measure the weight of laundry basket also linked to controller. This micro-controller may infer to Raspberry Pi.

Software: Phone app. Each clothes has a database: type, picture (new clothes will have no picture), number of the gate (will be assigned a new number if put in again and will be null if clothes is outside of closet), status of need photo or not, and worn days. App will send the specific gate number to the control panel, and all the information control panel get will be updated on the phone.

Interactive Proximity Donor Wall Illumination

Sungmin Jang, Anita Jung, Zheng Liu

Interactive Proximity Donor Wall Illumination

Featured Project

Team Members:

Anita Jung (anitaj2)

Sungmin Jang (sjang27)

Zheng Liu (zliu93)

Link to the idea:


The Donor Wall on the southwest side of first floor in ECEB is to celebrate and appreciate everyone who helped and donated for ECEB.

However, because of poor lighting and color contrast between the copper and the wall behind, donor names are not noticed as much as they should, especially after sunset.

Solution Overview:

Here is the image of the Donor Wall:

We are going to design and implement a dynamic and interactive illuminating system for the Donor Wall by installing LEDs on the background. LEDs can be placed behind the names to softly illuminate each name. LEDs can also fill in the transparent gaps in the “circuit board” to allow for interaction and dynamic animation.

And our project’s system would contain 2 basic modes:

Default mode: When there is nobody near the Donor Wall, the names are softly illuminated from the back of each name block.

Moving mode: When sensors detect any stimulation such as a person walking nearby, the LEDs are controlled to animate “current” or “pulses” flowing through the “circuit board” into name boards.

Depending on the progress of our project, we have some additional modes:

Pressing mode: When someone is physically pressing on a name block, detected by pressure sensors, the LEDs are controlled to

animate scattering of outgoing light, just as if a wave or light is emitted from that name block.

Solution Components:

Sensor Subsystem:

IR sensors (PIR modules or IR LEDs with phototransistor) or ultrasonic sensors to detect presence and proximity of people in front of the Donor Wall.

Pressure sensors to detect if someone is pressing on a block.

Lighting Subsystem:

A lot of LEDs is needed to be installed on the PCBs to be our lighting subsystem. These are hidden as much as possible so that people focus on the names instead of the LEDs.

Controlling Subsystem:

The main part of the system is the controlling unit. We plan to use a microprocessor to process the signal from those sensors and send signal to LEDs. And because the system has different modes, switching between them correctly is also important for the project.

Power Subsystem:

AC (Wall outlet; 120V, 60Hz) to DC (acceptable DC voltage and current applicable for our circuit design) power adapter or possible AC-DC converter circuit

Criterion for success:

Whole system should work correctly in each mode and switch between different modes correctly. The names should be highlighted in a comfortable and aesthetically pleasing way. Our project is acceptable for senior design because it contains both hardware and software parts dealing with signal processing, power, control, and circuit design with sensors.

Project Videos