GPS Navigator

The GPS Navigator project is built around an ATmega16 microcontroller, which acts as the central brain of the entire system. Power is supplied to the circuit using a 9V or 12V external adaptor, which is then regulated down to a steady 5V by the 7805 voltage regulator (IC2) to safely power the digital logic and display. An LED (LED1) and switch (S1) are included for power indication and manual control. The external GPS module continuously communicates with overhead satellites to determine real-time geographical coordinates, speed, and positional data, streaming this data into the ATmega16 microcontroller. The microcontroller processes these incoming coordinates and plots them onto a 128x64-pixel KS0108 graphical LCD (GLCD1). By storing and processing this positional data, the system is able to render a visual map or tracking record showing the path traversed by the user from their initial starting position. The firmware running on the microcontroller is developed using the WINAVR Programmers Notepad software environment. All of these components are mounted and interconnected on a custom printed circuit board (PCB) alongside assorted passive components like resistors and capacitors required for stable filtering and operation.