# Title Team Members TA Documents Sponsor
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.

Laser Harp MIDI Controller with Musical Articulations

Yingxi Hai, Hanze Tu

Laser Harp MIDI Controller with Musical Articulations

Featured Project

Electronic music concerts usually need eye-catching visual aids to create a certain atmosphere. Laser musical instruments is a great way to do this. We have been thinking of this project for a while and it was ECE445 that made this laser harp come true. The novelty of this project is that the harp-like laser device mainly focuses on playing articulations with laser and sensors, as a true universal MIDI controller, to control timbres that are synthesized or sampled. Articulations include piano/forte, vibrato, tremolo, and portamento. With the help of Professors and TAs, we learned how to pick right the components, design PCB, soldering, and program microcontroller. Those skills are not only useful in this class but also really important to electrical engineers. Also, we learned how to use individual strengths, combined with effective teamwork, in the pursuit of meaningful goals.

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