Feb. 11 HTL Vienna and Bratislava classes together

Line Follower Day

(link with pictures to be supplied)

1 hour presentations 

• line follower history, applications, algorithms (1-3 sensors); 
• intro to LeJos NXT Java  (complete set-up in 1 directory loaded on every computer)

1 1/2 hours work on Robots and programs and first 2 teams tested.
After lunch about half the around 10 group teams started testing.
Time tests started about hour later, so the Bratislava class could catch their train.

At least some of the Bratislava class had experience with LEGO NXT robot building, but no java.
Austrian class had never built any LEGO NXT robots, but knew java. The Austrian class took about 1/2 to 1 hour longer to start testing.


Course was made with electrical tape on a set of square white boards pegged together.


2 light sensor robots had the best times.
Only 1 group used 1 light - only worked in 1 direction
3 light sensor robots zigzaged too much.


Tricks: Slow down when in a curve so don't get too far from the line
Shield line around the sensors.


The line follower robot construction varied alot: Ferrari red model  with big wheels, basic 4 wheels with brick on top, and models with brick up high etc.