Lectures :: ECE 445 - Senior Design Laboratory


Spring 2024 Lecture Material:


Pre-Lecture #1:

(before the first lecture)



Brainstorming and Ideation

  • Brainstorming and Ideation slides (pptx)
  • Videos (watch before coming to class)



Lecture #1:

(January 16th)



Getting Started

  • Welcome, Course Overview, and Request for Approval (link)
  • Conflict Management Workshop (link)
  • Pitches
    • Sound Asleep (link) – Maggie Li (mtli2@illinois.edu)
    • AUVI- Continuous Fistula Monitor (link) – Richie Li (rlli4@illinois.edu)
    • Custom Cameras and Sensors for Medical Applications (link) – Professor Viktor Gruev (vgruev@illinois.edu)
    • Custom NIR and Visible Light LEDs for Surgery (link) – Professor Viktor Gruev (vgruev@illinois.edu)
    • Autonomous Underwater Drone (link) – Professor Viktor Gruev (vgruev@illinois.edu)
  • Brainstorming



Pre-Lecture #2:

(before the second lecture)



Beyond Ideation



Lecture #2:

(January 23rd)



Moving Forward

  • Introduction
  • Current Sensing for Electric Vehicles(link) Professor Olga Mironenko (olgamiro@illinois.edu)
  • Machine Shop – Gregg Bennett (gbenntt@illinois.edu)
  • Pitches
    • Autonomous Sailboat (link) – Professor Arne Fliflet (afliflet@illinois.edu)
    • The Watt Balance (link) – Daniella Pope (ddpope2@illinois.edu)
    • GPS Tags for Bat Conservation(link) – Josie Hoppenworth (jch8@illinois.edu)
    • ECEB Submetering(link) – Professor Jonathan Schuh (schuh4@illinois.edu)
  • Senior Design and Lab Safety (link) – Casey Smith (cjsmith0@illinois.edu)
  • PCB Tips (link)


Pre-Lecture #3:

(before the third lecture)



Design and Writing Tips



Lecture #3:

(January 30th)



Last Stop Before RFA

  • Intellectual Property – Dr. Michelle Chitambar (mchitamb@illinois.edu) (link)
  • Writing Center – Dr. Aaron Geiger (ageiger2@illinois.edu) (link)
  • Ethics (link)
  • Lionfish Trap project pitch – Katharine Klugman (klugman3@illinois.edu) (link)
  • Lab Notebook (link)
  • Modular Design (link)
  • R&V Table (link)
  • Proposal (link)
  • Design Review (link)

Spring 2023 Video Lectures:


Finding a Problem (Video)
Generating Solutions (Video)
Diving Deeper (Video)
Voting (Video)
Reverse Brainstorming (Video)
Homework for Everyone (Video)

Important Information

Using the ECE 445 Website (Video)
Lab Notebook (Video , Slides)
Modular Design (Video, Slides)
Circuit Tips and Debugging (Video , Slides)
Eagle CAD Tutorial (Video)
Spring 2018 IEEE Eagle Workshop (Slides)
Spring 2018 IEEE Soldering Workshop (Slides)

Major Assignments and Milestones

Request for Approval (Video, Slides)
Project Proposal (Video, slides)
Design Document (Video, slides)
Design Review (Video, slides)
Writing Tips (Video, slides)

Recovery-Monitoring Knee Brace

Dong Hyun Lee, Jong Yoon Lee, Dennis Ryu

Featured Project


Thanks to modern technology, it is easy to encounter a wide variety of wearable fitness devices such as Fitbit and Apple Watch in the market. Such devices are designed for average consumers who wish to track their lifestyle by counting steps or measuring heartbeats. However, it is rare to find a product for the actual patients who require both the real-time monitoring of a wearable device and the hard protection of a brace.

Personally, one of our teammates ruptured his front knee ACL and received reconstruction surgery a few years ago. After ACL surgery, it is common to wear a knee brace for about two to three months for protection from outside impacts, fast recovery, and restriction of movement. For a patient who is situated in rehabilitation after surgery, knee protection is an imperative recovery stage, but is often overlooked. One cannot deny that such a brace is also cumbersome to put on in the first place.



Our group aims to make a wearable device for people who require a knee brace by adding a health monitoring system onto an existing knee brace. The fundamental purpose is to protect the knee, but by adding a monitoring system we want to provide data and a platform for both doctor and patients so they can easily check the current status/progress of the injury.



1) Average person with leg problems

2) Athletes with leg injuries

3) Elderly people with discomforts



Temperature sensors : perhaps in the form of electrodes, they will be used to measure the temperature of the swelling of the knee, which will indicate if recovery is going smoothly.

Pressure sensors : they will be calibrated such that a certain threshold of force must be applied by the brace to the leg. A snug fit is required for the brace to fulfill its job.

EMG circuit : we plan on constructing an EMG circuit based on op-amps, resistors, and capacitors. This will be the circuit that is intended for doctors, as it will detect muscle movement.

Development board: our main board will transmit the data from each of the sensors to a mobile interface via. Bluetooth. The user will be notified when the pressure sensors are not tight enough. For our purposes, the battery on the development will suffice, and we will not need additional dry cells.

The data will be transmitted to a mobile system, where it would also remind the user to wear the brace if taken off. To make sure the brace has a secure enough fit, pressure sensors will be calibrated to determine accordingly. We want to emphasize the hardware circuits that will be supplemented onto the leg brace.

We want to emphasize on the hardware circuit portion this brace contains. We have tested the temperature and pressure resistors on a breadboard by soldering them to resistors, and confirmed they work as intended by checking with a multimeter.

Project Videos