Transcript Enfinitar Guitar

Chase Banna
Nathan Corwin
Robert Scanlon
ENFINITAR
Problem
 Learning to play the guitar can be a very time
consuming and frustrating experience.
 Without hands-on help or private lessons,
many people quit before mastering the basic
building blocks of the instrument – chord
progression.
Objectives
Visual cues to
indicate proper
finger placement
Feedback to
reinforce correct
finger positions
Portability
Programmability
Challenges
 Programming PIC assembly
 Working with surface mount integrated circuits
 Touch sensor integrated circuits – clocking and
Advanced Key Suppression
 Designing and fabricating printed circuit boards
PIC Programming
Surface Mount Integrated Circuits
Touch Sensor / Clocking
Source: http://www.qprox.com/downloads/datasheets/qt160_107.pdf
Touch Sensors
 6 completely




independent touch
circuits
Projects proximity fields
through any dielectric
Adjustable sensitivity
Adjacent Key
Suppression
Auto calibrating with
adjustable timeout
Source: http://www.qprox.com/downloads/datasheets/qt160_107.pdf
PCB Design
Advanced Key Suppression
PCB Fabrication
PCB Fabrication
PCB Fabrication
Parts
 4 PIC16F690 Microcontrollers
 1 PIC16F777 Microcontroller
 4 QT160 touch sensor integrated circuits
 74LS00
 LEDs, 7 segment display, buttons, capacitors,
resistors
 PCB
Expenses
2 double-sided PCBs
Etchant
Radio Shack PCB kit
PIC microcontrollers
PICKit2
10 QT1080s
6 QT160s
Passive components
Soldering Kit and supplies
Total
$30
$18
$18
Free
$50
$30
$30
$30
$40
$246
Timeline
Questions/Comments?