1. Solar Telematics System
PCB Layout and Design Presentation
Craig Lechlitner
Brian Kelley
Clayton Dickemann
Dan Ehrman

2. Block Diagram

3. PSSCs An ability to track vehicle location using GPS.
An ability to receive and send CAN messages from and to other systems in the car.
An ability to display graphics on the LCD display.
An ability to respond to user input from a touchscreen.
An ability to store and load data to and from non-volatile memory.

4. Preliminary Layout

5. Power Supply Layout considerations
Minimize length of high current traces
Use wider traces for 3.3V supply (>50mil for 3A)
Minimize vias between inductor, diode, switch, and capacitor.
Place fuse close to Vin.
LED backlight driver

6. Microcontroller Layout Considerations
Place decoupling capacitors on opposite side from microcontrollers, as close as possible to Vdd pins.
Place crystal oscillator and capacitors as close as possible to PIC32 and MCP2200.
Keep high frequency signals (96 MHz) short.
Graphics controller
SRAM
LCD connector
Place vias on all data lines for probing.

7. Misc Layout Considerations
Line up ribbon cable connectors to match LCD
Place commonly used connectors away from board edges so all wires exit through hole in housing.
Power
CAN
Audio
Telemetry data
Place infrequently used connectors next to edge to save board space
Programming headers.
External switches (only used as a backup for other systems).

8. Questions?