Comments for Micromouse Online

Comment on RoboTIC 2008 by Jim Chidley

Jim Chidley — Sun, 30 Nov 2008 16:42:14 +0000

Pete you mentioned Decimus put in an extra wall; the final maze had an unforgiving stretch of 10 continuous turns, which included a single dead end. Interestingly this is the only point that PICone Turbo crashed on three consecutive restarts. So lets blame the maze walls.
Jim

Comment on Bob’s second outing by tony wilcox

tony wilcox — Sat, 22 Nov 2008 10:06:38 +0000

Hi Pete

I have used the trick of (very) briefly turning a motor into reverse for braking on our teaching wall-followers, to improve the turning response. These use a single chopper FET and relay direction change.
Braking will be more much more controllable with the L293 h-bridge that you have fitted - but wouldn’t a reasonable control loop do this for you anyway?
The bot is looking good though - particularly as a pattern for schools competitors. It is in the end very similar to the matrixmultimedia bot, even down to the sound it makes.
Maybe a F1 sound generator for F1 could mask it!

Comment on Half size micromouse details published by vamsi

vamsi — Tue, 04 Nov 2008 17:40:22 +0000

hello sir,
the info u have provided i quite useful but its all in japanese that had made all the complexity for learning. could you plzz send the link of the english version of the mechanical design of your bot plzzz its very urgent……for me to learn how you made it

Comment on Winmaze - Another Maze Editor by peteh

peteh — Tue, 04 Nov 2008 07:47:50 +0000

It could indeed.

The numbers refer to the weighting given to turns. Choosing 1 means that moving straight ahead is no more costly than turning lefto or right. Larger numbers increase the cost of turning. As the cost is increased, the route chosen favours runs with fewer turns. Mice can alter the weighting to suit their characteristics and to determine whether it might be worth continuing to search for a more optimal route.

In this program flooding begins at the start cell and floods the entire maze. In a practical mouse the same algorithm would flood from the current mouse position until the destination is reached or no changes are detected. In this way the mouse will be able to calculate a route from its current location to any given cell.

Comment on Winmaze - Another Maze Editor by Alan

Alan — Tue, 04 Nov 2008 05:49:21 +0000

Nice program. It could use a little help file to describe what the 1-7 selector means.

I’m also curious about the flood fill. Doesn’t the flood start from the middle?

Alan KM6VV

Comment on LCD testing for Decimus by peteh

peteh — Sun, 05 Oct 2008 09:42:47 +0000

I am afraid I don’t remember. However, since I have several working test setups, I suppose I stuffed it into one of those and decided it was broken if it didn’t work. They are quite robust. I have connected them exactly in reverse without ill-effect. That happened because a couple of the on-line information sources have the pins shown the wrong way round. If you cannot get a response from the device at all try turning it around. Then consider that you may have been sold the wrong part.

Comment on LCD testing for Decimus by Barry Grubb

Barry Grubb — Sun, 05 Oct 2008 09:25:00 +0000

I have been struggling with the Nokia 3410 display now for sometime. To-date I have not been able to get any response from 2 x LCD’s whatsoever. In your blog you say “I wired up the LCD module incorrectly and destroyed it”. What were the symptoms of destroying the LCD?

Comment on UK Micromouse Competition 2008 by peteh

peteh — Thu, 18 Sep 2008 18:04:24 +0000

You can find all the results here:

http://www.micromouseonline.com/content/view/91/1/

Pete

Comment on UK Micromouse Competition 2008 by deepak

deepak — Thu, 18 Sep 2008 14:33:42 +0000

Can you let us know who was the winner finally?
Was it Derek Hall?

Comment on Decimus hardware fix by Siddharth Chinoy

Siddharth Chinoy — Sat, 30 Aug 2008 02:50:10 +0000

Oh,yes. That should have occured to me.