STEM II
In STEM II, we create a group of around 4 and
create an assistive technology, while documenting the whole process
correctly (arguably more difficult). My group (Maya Sushkin, Anthony DeRosa, and
Sasha Nandyala) ended up attempting to create a bracelet that could detect
drowning. It is a very difficult project, but I think we ended up
doing a lot with the time we had.
Problem
Victims of drowning enter what is known as the
“Instinctive Drowning Response” which can make both calling for help
and searching for visual indications of drowning difficult.
Design
When designing the product, we prioritized
getting the device and logic working over making a wearable bracelet.
The finished device looks scary, but everything included could
theoretically fit inside an Apple Watch.
Final Design
The device itself can read the user’s
acceleration, altitude, and heart rate. It determines whether or not
the person is drowning by determining whether the values read are
abnormal based on the user's average status. If the Arduino determines
that the user is drowning, it will trigger the Servo motor and turn a
valve that could be attached to a CO2 canister and inflate an airbag.
The device also includes two buttons: an emergency and a reset
button. If the emergency button is pressed, the Servo motor will be
triggered, opening the valve. If the reset button is pressed, the
Servo motor will return to its original position, closing the valve.
