Let's Make Robots!

Problems programming...

I have been using my PICAXE 28X1 board with success for a while now, and I decided to move on. I have breadboarded a PICAXE 28X1, but programming success is a little iffy. 99% of the time, the download page comes up with a normal downloading screen, but only one dot loads.




and then...




Monty Python clips!

Inspired by Totoro's bot and videos i opened up a new topic where we can post the funniest monty python clips.

Here's my first, philosophers playing football:


RoboGames 2009 in San Francisco

Hey all!  I haven't been to the site in a while, but I'm dropping by today to announce that I will be attending RoboGames 2009!  The event is from June 12-14 in San Francisco, and I'll be attending it on Saturday (the 13th).  Unfortunately I won't have time to build a sumo bot before the event, so I won't be competing this year.

I'll be checking out all the events, but I'd imagine the combat bots will be the most entertaining, so that's probably where I'll be for most of the day.


hi all,

I'm new to this forum. And I am making a new robot that will have a "go to home" functionality....

Basic circuitry and stuff

Well I was learning programming for a little bit now so I got bored and i want to try electronics and embedded stuff. Anyways.

I can understand how VERY(and I mean very)basic circuits work but I always have trouble with all those resistros transistors and all that. 

Where could I find a place(not my local library, already checked) where I could learn basics? I can easily program picaxe but thenever I get to putting it all up on a breadboard thats where all the hell breakes loose(although I'm quite skillful with soldering iron :)) 

What I need help is:

Help! Newbie in need of Arduino programming assistance.

Hello everybody! First let me start by apologizing, I've read the "newbies start here" post and I'm afraid I must break a few of the rules. I am a student at the Columbus College of Art and Design and I'm working on an installation that requires a pretty complicated (to me) set of robotics.

I think this is going to be a very stupid question....

... but how do I work out what size resistor I need to use when working with an LED?  I have looked around on Google but I can't find a formula / answer?

 Please can someone advise?

Docking Logic

Here is a good article for everybody working on dock logic


25 Microhips that shook the world




















I thought I would pass along Brian Santo's article "25 Microchips that Shook the World" from the IEEE Spectrum magaaine. 


It makes some interesting reading.