College of Engineering Unit:
Everybody has felt stressed at one point in their lives. It can be due to an impending dead- line,
or an unexpected event causing the stress. However, it is not always a straightforward process to
determine if a person is stressed and what may be causing it. This is the problem that this project
is aiming to solve.
The objective of this project is to create a device capable of detecting stress in its user. The
wearable stress detection device will have 4 primary methods of determining if the user feels
stressed: galvanic skin response, heart rate, temperature, and a switch. The switch can be flipped
by the user if they feel stressed. All the sensors will be connected to a microcontroller housed in
an enclosure the size of a person’s wrist. The data collected by the microcontroller is then sent to
a website where the information is graphed and can be exported as a CSV. The project website shows the graphed data.
The system will collect data from the sensors once every minute (2 second tolerance).
The data collected from the sensors cannot exceed certain degrees of tolerance based on sensor.
The enclosure for the whole system cannot exceed 2 inches.
The system must have a minimum battery life of 5 hours.
The system will send information wirelessly.
The system will shut down if no data is collected for five consecutive minutes.
The system should have a module that the user can interact with, to signify when they are feeling stressed. It should also display the input.
The system’s battery will be fully charged under 90 minutes.
- Galvanic Skin Response (GSR) Sensor: responsible for measuring the resistance of the skin, two electrodes are attached to the user’s fingers.
- Heart Beat Sensor: responsible for measuring the user's heart rate. It is located at the bottom of the wrist.
- Temperature Sensor: responsible for measuring the user's temperature.
- Website: responsible for storing all the collected data from the sensors. The data is graphed for easy viewing and can be exported as a CSV file.