1. Group 10 – Extensible Digital Logic Educational Tool
PCB Design

2. Block Diagram

3. Overall considerations
Mounting breadboard
Headers from GP I/O signals
Protection circuit for GP I/O pins efficiently placed and in visually obvious order

4. Pic18f4455 considerations Oscillator close to 18F4455
Oscillator trace lengths same
Vusb capacitor close to 18F4455
All pins to immediate test/point header

5. Power supply considerations
Far from noise sensitive components
Power and ground traces 100 mil
Tied to USB GND and +5V(?)