Let's Make Robots!

LMR scrapbook

Hey guys,

More and more often our work is showcased on other sites - let's have it collected, links, scrapbook :)

Hacked LIDAR Development

Found this 'neato' (wait for it) little project on diydrones.com.  The project details the workings and implementation of a hacked LIDAR device from a Neato XV-11 vacuum cleaner robot—for the purpose of reusing it in your own personal robotic projects.  Makes for some interesting reading.  Check it out some time....




LIDAR Lite Development

Sparkfun had a link to an interesting article about supporting the development of LIDAR-Lite:  http://www.dragoninnovation.com/projects/32-lidar-lite-by-pulsedlight

Rather pricey but if it can provide better scanning capability over the ultrasonic sensors it might be fun to use. Any one heard about this?

 3/14/14 Pi Day Update

Question for Oss, Hoff, or someone with a 3D Printer

Alright, got my parts in for the Kossel, ran into a snag.

I don't suppose you think I could do something like this to fix it...

Happy Arduino Day 2014

All Arduino user groups, makerspaces, hackerspaces, fablabs, associations, teachers, pros, and newbies will celebrate the Arduino Day 2014 on 29th Mar.

ICStation wish all Arduinos fans have a great party that day. And we offered 20% off on all Arduino related items from now on.

Enjoy Arduino Day, Enjoy ICStation Offer!


Dagu 4 channel motor controller Specs

Hi All,

I was just wondering what the maximum input current would be for the dagu 4 channel motor controller.

I have built this circuit http://letsmakerobots.com/node/3880 to power my robot (the third one down).

I didnt have a multimeter at the time i finished it so thinking optimistically i plugged it in and switched it on only to get smoke coming from the motor controller board.

Spider Controller powering up through USB only.

Hey guys,

I hadn't used the the spider controller for around 2 months. ( was working great back then) A few weeks ago, I picked it up again, tried powering up through an external power supply, and booom. ( no it didn't blow! :D)

But it did not power up.

It works fine through the USB cable. I checked the switch. It was damaged too. I have replaced it with a new one, but to no avail.I am assuming that the 5V regulator might have gone out? What do you suggest guys?


Propeller QuickStart Boards on Sale at RadioShack

Apparently RadioShack is putting their QuickStart boards on sale for $19.97. The normal price is $35 (possibly more at RS).

I know I'll be checking my local stores for boards (though I don't recall ever seeing a QS locally).

In case you haven't heard, the Propeller is a great microcontoller to use with robotics.

How many versions of arduino have you got?

I've got a few versions of arduino on my pc and I'm probably wasting space but I bet I'm not the only one.
Just wondering what versions are best to keep. I believe there are incompatabilities with existing code for some older or newer versions.
At the moment I've got 21,22 and 23 and 1.0.3.
Are there any I haven't got I should have and which of these should I ditch.
Also is there a way to tell each version where it's sketchbook is and keep it. I've noticed that when I switch ide's I have to change the sketchbook back. Really annoying.

My Teen/YA Science Fiction Books


The first FOUR books in my series are available in either PAPERBACK and EBOOK forms at Amazon.com:


Book 1 - SOUL KEEPER  [ Introduction of the main characters. This story is a bit like a Harry Potter story. The main characters consider their powers to be magic.]