The NXT Jump » line

Line Following Robot using Lego Mindstorms NXT and RobotC

Eric — Wed, 11 May 2011 20:21:38 +0000

This robot was built using Lego Mindstorms NXT and programmed using RobotC and uses PID controller software that I designed. It makes the circuit in about 9 seconds. It uses two servo motors and one light sensor to follow the right hand edge of a black line on a white surface. Gary Samad

Lego RCX 2.0 follow line

Eric — Sun, 17 Apr 2011 13:15:43 +0000

One of the first test runs..
Video Rating: 3 / 5

LEGO nxt Line Follow with moving sensor 1.0

Eric — Fri, 16 Oct 2009 13:32:56 +0000

Interresting facts with the concept:
- Moving light sensor can replace multiple sensors in theory
- I had to compensate sensor movment backlash from software
- Algorythm 1.0 restricts to the seen top speed
- Corrects course on slide ends, thus it can easily loose path (aka 2 wide samples per second)

Future possible improvements:
- Smaller backlash from hardware
- Automatic backlash calibration
- More intelligent driving algorythm
- Continuous sampling, and path adaptation
- Lost line situation handling

Duration : 0:1:6

[youtube C-suay6zTXc]

Lego Mindstorms NXT Robots

Eric — Wed, 14 Oct 2009 14:54:35 +0000

Lego Mindstorm NXT Creations

Built, Filmed, and Edited by Brett Gale

1: Tribot ball Fetcher
2: Tribot Line Follower (0:40)
3: Time Lapse Disassemble and Build (1:07)
4: Color Sorting Claw (1:33)
5: Scorpion (3:17)
6: Video Ends (3:44)
Room left for last robot built but not filmed.

Duration : 0:5:21

[youtube AToVUoZyWWk]