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61 Beverage Coaster with Sensing Capabilities
Shivam Patel
Shray Chevli
Suraj Sinha
Dongwei Shi design_review
We would like to build a beverage coaster that has weight sensing capabilities and the ability to transmit the data to some sort of central node. The use case for this idea is to transmit the data to a centralized location, allowing restaurant owners/servers to keep track of how much of a drink has been consumed thus far and how much is left to be consumed. This creates opportunities for analytics to be done on this data set for the restaurant owners to learn/function more optimally; whether it be by optimizing the frequency of service or any other avenue.

The challenges for this idea are getting both the sensor and RFID microchip incorporated into a usable coaster, not only in terms of appearance, but also size. Besides the challenge of scale, we need a reliable power source that can power the RFID microchip, weight sensor & logic board.

In terms of functionality, a challenge we may face can come in form of data we receive and how to process it. Since various cups have difference weights and densities, figuring out a method to detect accurately, through our weight sensor, volume of liquid or lack of can be challenging.

Our baseline expectation of this project will be to have a functional pressure sensor that streams data readings at a reasonable (based on use case) frequency to a hub that allows for some level of analytics/wiser decision making. Assuming we successfully build this out, we would like to add a button feature that can serve as a waiter/waitress caller system.

Propeller-less Multi-rotor

Ignacio Aguirre Panadero, Bree Peng, Leo Yamamae

Propeller-less Multi-rotor

Featured Project

Our project explored the every-expanding field of drones. We wanted to solve a problem with the dangers of plastic propellers as well as explore new method of propulsion for drones.

Our design uses a centrifugal fan design inspired by Samm Shepard's "This is NOT a Propeller" video where he created a centrifugal fan for a radio controlled plane. We were able to design a fan that has a peak output of 550g per fan that is safe when crashing and when the impeller inside damaged.

The chassis and fans are made of laser-cut polystyrene and is powered using brushless motors typically used for radio-controlled helicopters.

The drone uses an Arduino DUE with a custom shield and a PCB to control the system via Electronic Speed Controllers. The drone also has a feedback loop that will try to level the drone using a MPU6050.

We were able to prove that this method of drone propulsion is possible and is safer than using hard plastic propellers.

Project Videos