Touch Controlled Music Player


Team Members

Casey Silbernagel - Casey's email
Erin Sullivan - Erin's email
Randy Suhargo - Randy's email

Cypress Semiconductor

Mentor

Robert Eilers


1 Project Overview


In recent years, capacitive touch sensing technology has become increasingly popular in many consumer electronic devices, such as MP3 players, smartphones, tablet computers and laptop touchpads. Capacitive touch sensing differs from earlier technologies, such as resistive touch sensing, in that it does not require physical pressure to be placed on the button, slider, or screen, making it easier to control using a finger rather than a stylus. Traditionally, as the price of a new technology falls and innovations make it easier to implement, it will start to be used in a more diverse range of products, such as home appliances and toys. The potential market for such “non-traditional” capacitive touch sensing uses is very large and is one that many companies, including our sponsor, Cypress Semiconductor, are interested in obtaining a stake in.

For our senior design project, we will be creating a music-playing toy that uses Cypress Semiconductor’s CapSense technology. The toy should be visually interesting, durable, and easily held in a child’s hands. The main focus should be interaction with the touch sensors in order to control music playback. In addition to the basic features of selecting songs, starting/stopping and adjusting volume, there may be additional features such as lights, voice recording or sound distortion providing more ways to play with the toy.

The final product will serve as a demonstration of CapSense touch sensors, showing how capacitive touch sensing can be incorporated into toys and other inexpensive devices. The included development kit software will allow us to greatly reduce development time spent creating an interface to the touch sensors, demonstrating how a new product could be brought to market quickly even with a small team. Finally, a brightly-colored, fun-to-interact-with toy has a strong chance of being a hit at the Engineering Expo, perhaps even bringing our team the coveted People’s Choice Award.

2 Needs Identification and Background Research
3 System Requirements and Desired Features
4 Design Solutions
5 Top Level Block Design

5.1 Microcontroller Input
5.2 CapSense Controller
5.3 CapSense Controller Code
5.4 Case
5.5 Lights
5.6 Microcontroller
5.7 Microcontroller Code
5.8 Flash Memory
5.9 Voltage Regulator
5.10 Batteries
5.11 Low Pass Filter
5.12 Amp
5.13 Speaker

6 Testing
6.1 Testing Verification
7 Project Timeline
8 Budget
9 Expo


Location for copies of submitted documents (PDF)

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