1. PCB Presentation Group 6 – String Us Up! Matthew Barton Clifford Risley Patrick Nice Seth “Schematic” George

2. Self Tuning Guitar Packing Limits Electronics mounted inside guitar body Room for 2” x 4” circuit board 1.6” clearance inside guitar body

3. Top of Guitar Bottom of Guitar

4. Power Supply Voltage Requirements – 5 Volts for A/D Logic – 3.3 Volts for Digital Logic – 4-6 Volts for Motors Power Supply – 8 AAA batteries producing 12V – ‘MC78M05’ regulator producing super-clean 5V – ‘NCV4274’ regulator producing 3.3V – ‘BD9702’ Switch mode regulator for 6V motor power

5. 12V to 6V Regulator

6. 12V to 5.0V and 3.3V Regulators

7. Microcontroller

8. Microcontroller, Reset Switch, Crystal

9. Audio Codec

10. Audio Codec, Crystal, Input Lines (w/Resistance)

11. Bluetooth (w/ LEDs)

12. Headers, Power MOSFET, Dimmer

13. Total Layout

14. Basic Routing

15. Final Touches Heavy Traces for Power Check de-coupling capacitors