Let's Make Robots!

"LoMoR" - Lets Orientate & Map Our Robots (Sonar Based)

"LoMoR" - Lets Orientate & Map Our Robots (Sonar Based)

 Also Blogged as Mystery Object Here

My System Uses a LCD display to Map an area which is scanned by an Ultrasonic or IR Distance_ing transducer.

The Angle of the Probe is converted from polar Coordinate to Cartesian Coords and then displayed X,Y fashion on the LCD Display.

The System works pretty well i must say, however the "Extra" echos of Ultrasonic signal can be miss-leading.

my poor robots.

i have come to realize my robots dont stay in one peice for too long. i get a new idea and parts go flying. guess thats a part of being broke. anyone else have this problem? blocky has been torn down and his peices are on my new robot to be posted soon the rest of his parts are going to end up on my airsoft robot. look out for that one too. i guess this is just an update on whats been going on. havent been around for a while moved out and whatnot

GRAB-E Build

NOTE: This is a reverse chronological blog. Start at the bottom if you are new to it. The most recent entry is at top, just below this notice.

You can also view the Robot Page for this bot.

Update 2011-07-13 (in the wee hours of the morning)

Arduino, Bluetooth, Linux continued....

Bluetooth, java, Linux - seem to be working together in harmony now. Some things I learned along the way regarding the RXTX java library and Linux com ports in general:

By default, only the root user has access to read/write the serial ports on the system. So if I take the sample code from RXTX I've attached called FindPorts.java and run it from the command line with my user account it will not list any ports. This code was lifted straight from the RXTX site. I've packaged it in a jar file for ease of use from the command line:

Arduino ServoShield Sequencer

While thinking of exciting things to do with the new Renbotics ServoShield, I realized that most of them required some sort of sequencing. Google-ing did not result in much so I decided to create my own.

The first challenge was; how to store the sequence? I decided to use the on chip EEPROM and came up with this simple structure:


I am a beginner, I would not know much about the robot, who has a detailed description about robots? Thanks!
I want to do a robot will be picking up things.

Mystery Gadget - Code name "LoMoR" - RSS feeds Bog Off

Here is a Mystery Gadget i made for you to ponder over until i get some Video Up and Running.

Edit:- Now Fully Blogged "LoMoR"

NB. If there are any Automatic RSS feeders listening into this Blog then  "Bog Off" ,this is a Top Secret LMR only scoop.

Any Idea what it is then feel free to guess............codenamed "LoMoR" Lets-Orientate-Map-Our-RobotsRSSFEEDERSBOGOFF.jpg

Arduino, Bluetooth, Linux

Back to work on the Ardbot. I've decided to build my control panel competely in java/JavaFX on Linux. One challenge was getting my Bluetooth connectivity going on Linux with this configuration:

  • Kensington USB Bluetooth dongle on Fedora 11 PC
  • Sparkfun  Bluetooth modem on robot

My goal will be to control the robot from a gamepad controller attached to the PC, wirelessly over the Bluetooth link.

Big bot parts on the way :-)

I have no name for it yet, but I am building a bigger robot.  Over a year ago before I even started on iGor I built a 10"x8.8"x12" aluminum frame box, intending for it to be the body of a robot.  I think now after several smaller robots I'm ready to continue with that one.  So here is an idea of what i am gonna do


2x12V lynxmotion motors with R/C truck tires and 2x desk chair type casters


12v SLA battery


yet another blog

I ran across LMR while looking for something else. Information content zero. :)

I've been twiddling with hobby robotics for a few years. I've thrown together quite a few kits and have only recently started to DIY.

My main interests are the AI/software aspects which I've been tinkering with for quite a few years.

I'm a fan of plan-directed robots -- e.g. starting with "constant world" ideas like STRIPS but working my way to noisy time-varying adversarial environments like the neighbourhood sidewalks.

Base station - specifications

The Base module (BM) provides

  •     beacon + heading assistance (v1)
  •     charger (v1)
  •     calibration (v2)
  •     USB (v1)

It is laid on the floor and is powered by the nearest outlet.

The robot must have the corresponding localization hardware and software. These elements should be as light (physically and for resources) as possible.

Guess what I'm Building?

Guess what I'm Building?

Scoots Plan

Well im starting to make a robot named Scoots and it will be in like a bowl with LED Eyes and will be like a beetle bot. Since im a scavenger and i hate buying stuff above 10/20 $ i will make it only from parts in my house or cheap junk i bought.

Walking Robot / Vehicle Project


Progress can be found here.

I'm building a robot designed to carry a human from one place to another with a bipedal robot.

Right now, progress is slow: Money is a huge issue.  Since a very important part of the robot just broke, I'm set back another 50-100 dollars on top of an already needed $200.

My youtube channel




Thanks for your intrest.

Greetings from RoboDays 09

Hi everybody :)

I was invited to exhibit on the annual RoboDays, in Odense, Denmark this year

It was quite cool, because I got to meet so many of the youtube-famous robots (and their builders) out there. Some shown in the video, but of course I did not have time to go around and film a lot, having my own stand (and 500 kids wanting to touch stuff and drive cars into each other)..

Don Quixote - Solar Quest - Trailer ........... Now Premiere

Appearing Soon .........

 Don Quixote - The Solar Quest - Trailer   Now Live Premiere Here
















My first blog entry and first robot

Hello LMR. I am pretty new to the site. I used to lurk around here just because I liked the videos of robots, but eventually it sucked me in. I made a start here bot but wrote my own code which I am still working on. I am pretty good with coding and am looking forward to doing more advanced stuff. My camera is broken ATM but I'm going to borrow someones camera to make a page in the robot section with pictures and video.

For now though I'll give you guys the code I wrote in case anyone is interested. I can add descriptions if anyone wants but it's pretty self explanitory.

Swarm AI beginnings (XMOS Competition)

Last Update: 13/10/09 XK1 first look pictures.

My XK1 arrived this morning via Japan post. Being so close to Hong Kong I might be the first :P But they were sent out on the 9th so those people waiting on one should go check your post box!


OddBot, Claudia, DAGU... they just rock...

Jeez, i ordered from DAGU 20 mini servos one week ago... and i already received them! That's even faster than most of the sellers in my own country!

So thanks to them, and thanks to OddBot who took the time to think about my special needs and perfectly fulfilled them, saving me a lot of time (and money!)


Here on LMR we are really lucky to have them all... :D

3D scanning/artificial robot vision

This image was created via data from a sharp IR sensor and maxrobotics sonar, mounted on a pan/tilt servo setup.


The "real" image is not taken from the same perspective as the robot - as the robot has over 180 degree field of view (sorta, for the middle 1/3rd of the screen) it was pointless to try to replicate its view with a cameraphone.