A minimalistic GPS navigation system for the AVR microcontroller.

Features: -Calculates the change in heading required and distance to the goal -Can enter destination GPS coordinates manually -Can save/load entered or current GPS coordinates to/from EEPROM -Selectable information on bottom line of LCD: -dilution of precision, number of sats, time -speed, elevation -Program to dump the EEPROM and write a CSV file with stored coordinates

Hardware: This software was tested on a one-off ATMega644 board running at 7.3728MHz with an HD44780 LCD on port A, a 3x4 keypad on port C, and a Holux M1000 hooked up to UART0. More details can be found in the source code.

Things you may wish to change/look at before building: Makefile - the programmer and MCU type are set up here lcdlibrary/lcd.h - what port and pins the LCD is connected to keypad.c - what port and pins the keypad is connected to and how to read it uart.c, uart.h - may need tweaking for MCUs I haven't tested it with ui.c - the EEPROM_SIZE define gps.c - the NMEA parsing may not be correct for your GPS receiver