Robots » Lego

Line Following Contest

admin — Sun, 11 Jul 2010 06:47:12 +0000

Eugene recently had a line-following contest at the annual asian celebration. Unfortunately, several of the would-be entries got locked up in the local high-school, so we only had 3 contestants. Myself, one of my kids from the robotics club I mentor, and cute little snail bot that is all analog.

I spent all week working on my PID algorithm, and almost gave up the day before. But it turns out the test mat I built at home was far more difficult than the mat at the contest. So I’m glad I actually went.

I only planned to enter the “beginner” contest, but since there were so few contestants, I went ahead and tried my bot on the “advanced” course. Turns out that they’ve never had a bot successfully complete the advanced course, which my bot did on it’s 2nd try (which didn’t get recorded).

Duration : 0:5:41

[youtube 6-nWWbIIJtI]

NXT Line follower and obstacle detection II

admin — Fri, 18 Jun 2010 13:30:15 +0000

Line follower implemented with LeJOS (Java for Lego Mindstorms).
The robot follow the line until an obstacle is in front of it.
It includes color and distance calibration and sound/light advice when an object blocks the robot’s way.

Designed and programed by Arturo Moral & Miguel París. Universidad Rey Juan Carlos (Madrid-Spain)

Duration : 0:1:4

[youtube PzZhslIrsE0]

Lego Mindstorms NXT Pneumatic- X6 Hexapod

admin — Mon, 14 Jun 2010 08:39:02 +0000

X6 Hexaped, walker. Outdoor testing. The cold had a bit of a slowing of the pneumatic parts. This was the first test out doors in the dirt. A work in progress. This versions main concern was to try to get all the parts inside as compared to the first.

http://mindstorms.lego.com/nxtlog/ProjectDisplay.aspx?id=427742ff-fefd-45a4-bca1-8c20d0984d83

http://forums.nxtasy.org/index.php?showtopic=1663

http://mobildefencelab.blog.homepagenow.com/blog.shtml

Duration : 0:4:39

[youtube DCHYNvmprag]

Lego Line Follower

admin — Mon, 24 May 2010 05:28:51 +0000

Giolianz…
Use the LEGO Mindstorms RIS 2.0 Robotics set to create a robot that will detect a line with its two photoresistor light sensor and follow the line

Duration : 0:1:14

[youtube PkaJHz49DyA]

FASTEST NXT LINE FOLLOWER!!!!!!

admin — Wed, 19 May 2010 03:58:30 +0000

About 8 seconds by my watch.

Duration : 0:0:11

[youtube DdZIPIXRIiQ]

Hexapod Walker

admin — Wed, 19 May 2010 03:58:19 +0000

The Hexapod Walker is a six legged LEGO NXT robot walker. It uses a gait that causes very little slippage at the feet so can walk well with rubber tipped feet all the way around. The left and right motors control their respective sides corner legs. The motor in theback controls the middle set of legs so that either left or right corner legs can be lifted. When left middle goes down, left corner legs go up and right middle goes up.

First program just walks in a simple pattern. The second program was for a walking robot race and uses the small LED lights as navigation aids. Light sensor, mounted in the back but looks forward, sees the light and with every step adjusts step size to aim for light.

Duration : 0:2:28

[youtube tuqeaIT8X8I]

Line-Following Lego Biped

admin — Fri, 14 May 2010 19:00:19 +0000

A Lego biped that can follow a dark line. For more info, go to http://blake-foster.com/project.php?p=22

Duration : 0:5:9

[youtube gjeySdp5lo0]

Extended line follower lego

admin — Sun, 09 May 2010 06:27:12 +0000

Extended line follower lego

Duration : 0:0:39

[youtube 88Tyv5NZsjw]

LFR (Line Follower Robot) V1.0

admin — Wed, 05 May 2010 13:39:05 +0000

It is a 3 wheeled vehicle with a motor for each front wheel. A third motor is used to swing a light sensor so it can distinguish the black line from the white field and follow it.
A sound sensor makes it turn 180º with a whistle.

Duration : 0:1:7

[youtube xNi-66lh-uQ]

Lego Mindstorms NXT Line follower

admin — Fri, 23 Apr 2010 17:30:10 +0000

http://www.freewebs.com/laurens200/index.htm

Duration : 0:0:35

[youtube Wn4yH7srxiQ]