GPS Lego Car

For my final project in my micro computers, my partner and I decided to create a car built from Lego bricks which would communicate with a commercial GPS device in order to navigate. Although this project had a lot more to do with embedded systems than building with Lego bricks, I include it here anyway because I really liked the project. The following is the relevant sections of our final report and some pictures of our creation. Since I doubt anyone will actually look at the boring report, I will just tell you that the project did not quite work as we wanted because the electronics interfered with the GPS receiving a signal. We tried to make shielding with tinfoil (which would also keep Major League Baseball away) but that did not work. The car would maneuver correctly, however, if we walked along side it and held the GPS receiver a couple feet from the car.

Unfortunately I do not have the schematic for the circuit, although it was not very complicated, just a couple of MOSFETs to drive the motors. Also, I have the source code for the processor, but decided not to include it because I did not write half of it, and also some of it became pretty bad as the due date approached.

Pictures of the Car
Prototype of the Car

An early version of our car

Output of the Car

Outputting GPS coordinates to the LCD

Final version of car

The final version of our car
(complete with tinfoil)

Profile of the car

Profile of the car