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Blog entry

yuri suzuki: colour chaser

By Emma

December 30, 2011
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Hmmm....but why have such unpleasant sounds?  

As an elementary school art teacher I really like this.  Kids would be so excited to hear their color path.

I found this on designboom.

Happy New Year, y'all!

Emma

Embedded video: 
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Robot – work in progress

Vac Bot

Autonomous line following bot
Using a

 Collected by 4 members
 
20/11/11 This is my new autonomous line following bot starting to take shape and a much more slicker design than my last bot attempt. It's made out of clear … Read more
hydro's picture
hydro
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Robot

ASURO line follower

Line following
Using a

 Collected by one member
 
This is a simple robot made from a kit I bought from a local electronics shop. I have made a simple line follower program for it and thought I would upload it here … Read more
Watch video
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screwdriver
Forum topic

Line following sensors questions

By dannytemmerman

August 28, 2010
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I am planning to place 2 line sensors on my robot project(ATmega8). I want to place LDR line sensors. Now i have a few questions.

What is the best distance to placethe sensors from each other? So that I have no bad readings and I still can follow the line 'smooth'.

What is the average breadth of a white line?

What is a good design of this type of sensor(LDR)? I would just place the LDR next to the led, is this okay?

And what is a good algorithme to use with a L293D with no pulse control(each motor is always on 100%)?

 

Thanks

Danny

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Robot

My First robot (line maze/contact obstacle avoidance)

Line Mazes and collision object avoidance
Using a

 Collected by 2 members
 
News (for those who don't want to read the article) -I have got one of the line sensors working. -I have got some basic line following going -I have given up on … Read more
TomDOW2
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Tip/walkthrough

How to connect AXE121 to Picaxe 28 pin Project board

Line Follower Kit

 Collected by 8 members
 
AXE121 is an cheap and easy to use Line Follower Kit that can be easily connected to the Picaxe 28 pin Project board. You can buy it on the PICAXE on-line … Read more
XicoMBD's picture
XicoMBD
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Robot – work in progress

Sr.M Maze solving robot

solves line mazes
Using a

 Collected by 14 members
 
This is my maze solving robot. It uses a Arduino RBBB from wulfden.org. It has 2 30:1 micro gear motors.  The robot has 5 reflectance sensors for sensing the line. … Read more
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patrickmccabe's picture
patrickmccabe
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Robot – work in progress

YAABR - Yet another Arduino based robot

Line following, can be remote controlled via Bluettooth
Using a
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YAABR is my first Arduino based robot. The name is an abbreviation for yet another Arduino based robot. It is a multipurpose platform for experimentation. With its … Read more
RobotFreak's picture
RobotFreak
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Robot – work in progress

Rebel, first attempt at building a robot.

Line following, Driving around free with obstacle avoidance
Using a
 
This is a first attempt at building a robot. For now it is able to follow a line, and to drive around free with obstacle avoidance. In the near future I will … Read more
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GobliZ
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Blog entry

New line sensor

By jip

March 30, 2008
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I had some problems with the 36 KHz detector when trying to read it from the picaxe, so I have switched to using 4 infrared photodiodes in a feedback setup with two LM358 dual opamp packages as shown in the following image (for one photodiode only):

linedetector.jpg

This gives an analog reading and I will use this for linear interpolation between the sensors to determine where the line is relative to the robot center.

Project: 
Robot Hansen