Let's Make Robots!

Wall

Shipping LMR posters cost more than I thought. Please help.

Update: 301th July, 2013

Thanks to a few generous members of LMR half of the bill has been paid. I still have to pay a weeks pay but that is much better than 2. I still have another 350 posters that have not been shipped yet so I might have to find a cheaper shipping service and hope they do not get damaged in transit.

If you want to help LMR then please buy a poster or continue to donate money. Right now, all donated money will go towards paying for shipping cost.

Races around the room using ultrasound
Using a
I was inspired to make fritsl's wall racers when he showed them off in episode 18 of The latest in Hobby robotics on Makezine's youtube channel.  After finding his … Read more

AC wall power

I need to power 2 picaxes and 25 LEDs, each with it's own 1k resistor. Also a small DC motor. I would like to use an AC adapter, but only what is necessary (need the others for later). I have three 5V adapters: 250ma, 400ma, and 1A. Which should I use?

Computer On Wheels Controller

Hi guys,
 
 
 
Since last week, I've been learning c++ and openFrameworks and creating a application to control any robot with a computer on it or, at least connected to one by someway.
 
It is supposed to be simple to implement and use.
You just need to run the application and program your robot to read the following chars and act corresponding to them:
  • 'w' to move forward;
  • 's' to mo

Maze Solving Robot, Flood Fill Algorithm (UPDATED w/ video)

I was wondering how the guys program their robots in the micromouse competition. 

http://www.youtube.com/watch?v=bproY7G2t4o

It was obvious that they don't use the "always go left" method. After looking around a little bit, it became apparent that the competitors keep their algorithms on the hush. But I did find that the base for most their methods is the Flood Fill method. Here is a paper that describes it pretty well.