ECE 477 Senior Design Group 13  Spring 2007

Outline Project overview ECE 270 knowledge used Project demo

Autocar Project Overview Waypoint navigation vehicle Interfaces with Garmin GPS Receiver for current position Avoids obstacles such as trees and trash cans Displays information to user via LCD Allows easily created user programmable route

Design Challenges Faced Navigating vehicle with accuracy of GPS receiver data (3m) and digital compass (6 deg) Avoiding obstacles Interfacing with LCD Real time run environment Gernerating 20 mS PWM control signals Interfacing with RS-232 – Inverter Solution

ECE 270 Knowledge Used Pull-up & pull-down resistors Sourcing & sinking current PLD – shift registers Using Benchlink scope software Active high & active low signals 7404 Inverter Capacitors between power and ground Computer architecture Drawing schematics with Orcad

Project Demo

Questions / Discussion