Let's Make Robots!

LMR

Campus Party - Milenio 2011

Hi all,

It looks like Spain misses us, they doing yet another Campus Party with free invitations. So I'll post my tank and the crab and hopefully some of you will do the same and we'll have a little LMR reunion :D

If you were ther before you should get an emil in spanish, if not you can subscribe here for an invitation:

http://milenio.campus-party.org/2011/main.html

Cheers and maybe see ya there friends!

MintyProbe, the Altoid can logic probe

Inspired by Andersen and CTC, I am putting together a Logic Probe Kit consisting of:
     MintyProbe, a tiny 3.5"x2.25"x.75" Logic probe with 2x16 LCD Screen able to:
                Detect High, Low, Floating Inputs
                Signal Pulse Length
                Voltage readout (5V and Under)

LMR series of PCB's

I think that LMR should have its own series of circuit boards, with the designs open source for all LMR'ians to use. Heres a couple ideas for PCB's:

Review: Solarbotics Zendulum

Intro:

It's time to find a sunny spot in the house, put on some chillout background music, light some aromatic candles, all in all prepare to get in a Zen mood :)

Ready? Good. The last missing piece is the Solarbotics Zendulum to complete the scene:

It is controlled trough IR commands
Using a
Hi all, This is it! As I got a fully (more or less) functional CNC (see here: http://letsmakerobots.com/node/24217), I can finally start doing what I have intended … Read more

An official LMR robotics comp.

Hello

Most of you know I've had a lot of interest in my cross the gap challenge.

 

So I asked Frits about us having a "Official" LMR online competition at the end of this year. He said he is interested, but has too many obligations to be personally involved beyond giving the final approval, and adding stuff to the home page, etc.

If you want to be involved with exploring this concept, we will have to come up with a new game, and write up the rules, and figure out who's judging the video's, etc. I can get prizes donated.

Z-39 was "Yet Another Tracked Bot" - Build blog

 


Hi LMR,

Now that the Phoenix CNC works good enough to do some real work, I have finally started working on a new project: 

YATB - Yet Another Traked Bot - at least until I find a better name for it

I will try to document it's building saga here, before creating a robot page for it. 

So without further intro:

Phase one: Tracks

First I have done some Blender designing, I came to design something roghly as below:

Maintenance: components and unread posts

You know our Components section right? Most of the components in that database are automatically imported from a few vendors who are friendly enough to allow us access to their databases. Each time a new component is added to a vendor's catalog, our server imports it into ours. Changes in details like description and price are also automatically updated.

LMR Downtime

LMR will be down for a software update tonight about 10pm PST (GMT-8). No big changes, just some core updates. Expected downtime is 30 minutes or less.

edit = To clarify, 2011-02-09 2200 PST (if I did timezone math correctly that's 2011-02-10 0600 GMT)

Simple object avoidance
Using a
UPDATE 24/1/11 New video added of the thing actually working. I could spend forever tweeking the code, but at least I know that it does what it's supposed … Read more

Capacitors

Hi y'all, just joined LMR, fantastic site, lovin' it already . . .

 

I am a bit of a beginner to robotics, I mean I can program and all that, and make these things, but I know not how or why they work.

One thing I have been wondering is about capacitors:

When designing a circuit, how does one know where to place capacitors, or why to have them, or how they function in that position?

With this circuit in particular (from here: http://letsmakerobots.com/node/2074), why the caps?

those two in the top-right, why do they both need to be there?

Hi all, Phoenix is almost ready for prime time, mechanics almost done aside for e few things here and there. Some pictures … Read more

Android LMR app ..?

Google has made it pretty easy to create apps for their Android OS, that I am sure you have heard about, and possibly use.

I am a heavy user, and I'd like to try and make an LMR app, just for the fun of it. Or have yours on my phone?

But what on earth would be fun or possibly even useful?

Perhaps it's  an all together stupid idea, because one can always just use the phones browser, and get "the real thing" there, even log in and all. Several of my posts have been made that way, from my phone.

Hi again! She is back up, almost useful now. Now with video ... =>                   And the result of the video:                       (yes … Read more

V4 Stepper Driver

Hi LMR!

It's been a loooong time into WIP but it is finally there:

v4_drv

 

 

 

 

 

 

 

 

 

 

(Yeah scaling is bad, see the link down below for the Eagle files)

So what is in the picture above? I'll answer that for ya ...

thanks LMR!!!!

I have been looking at almost all the robots and proyects that LMR has, let me tell you people that i am amazed.....

I began this robotic journey a year ago, the internet was so helpfull in getting knowlege, ideas and fun....

LMR is so big, so powerfull that i started to read almost all the proyects to get ideas, in that ideas i find the knowlege and the pleasure of finally sharing my achivements....

Xbee Live Conference

Call for conference guests

Who is interested in the upcoming Skype Conference on the advanced features of Xbees? The conference will be broadcast as a special live episode of the video (help-) show.

We are looking for a suitable and practical time slot. Hopefully some time this weekend. Can I hear some suggestions?

Live soccer robots on LMR

Recently Gareth suggested to me that it would be good to have 2 teams of my bi-ped robots playing soccer. This was too good an idea to ignore.

After talking about this idea backstage this is where we are at:

We have many visitors from china that have problems watching some of our stuff
If you are in China, you probably are aware that A) There are restrictions to your Internet B) There are ways to bypass these restrictions Now, I am not at all an … Read more

Love and Peace

Spotted in the Shoutbox tonight. So true, I had to preserve it for prosperity. Also: shouts cannot be Chilled (thank you).

fritsl: This is the only robo-community in the world where ppl thing the others are cool :D
Cuts 2D and 2.5D shapes controlled by the PC.
Hi all! V2.5 is almost here, I'm still thinking on a nice name for it :) For now a list of changes I have done since V2.1: - upgraded motors to 200 steps/rev bigger … Read more

List of notable tags on LMR

Look at these LMR tags. And notice how easy it is to attract some major search engine attention towards important (or fun) subjects on LMR.

* How to make your first robot (google)

* Instructions on LMR (google)

January 2010 Release of LMR

Just for the historical records....

New release of LMR January 26, 2010:

  • As always a lot of under the hood-work, regarding spammers and security.
  • New content type: "Something else". So many times people have made something great that was not quite a robot. Now it can be published, see front page, Add content.
  • New exciting components-section - try it out on top menu; Components

As always, 95% of the work was done by Del Rudolph. Thank you for your amazing work!

LMR-III Now Online!

As you can see, LMR is back up and now at version 3!

No, your eyes did not deceive you, that was Zanthess' avatar you saw everywhere. This release includes a new attempt at thwarting spammers by adding a small quiz to the user registration form. Since this was Zanthess' idea the avatars where temporary and in her honor.

LMR Downtime - fair warning

LMR will be down for an update tonight at approximately 9pm, PDT (2100 GMT -7). Downtime should be an hour or less.

Norway LMR Beer???

Hi, everybody!

I know everybody is busy with his (her) own business, but I feel if I do not post it I will feel bad :) I'm i Stavanger, Norway at the moment for training. Enyone wants to meet for a beer in sake of robotics? :) 

LMR 2 years old

At the time of writing this, LMR is about to celebrate it's 2 years birthday, and already people are bringing presents in the shape of birthday related pictures and stuff.

Please, if you are doing so, link to it from here (if it is a robot, blog entry etc) - (or directly write below if applicable)

Hoorayy :D

LMR-IIa Updates

Just a quick post to let you all know the few features that have been added with the IIa sub-upgrade.

The feeds listed on RSS feeds now work again

 blip.tv videos should now embed the correct video

 The User Map is now capable of showing only the user specified. In other words, when you click Location: San Bernardino, CA, US in my user page you'll only get me on the map, and it won't take 20 minutes to load!