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motion sensors

i ran into a ps3 active set at big lots it was only 15 dollars and it claimed 3 motion sensors including hear rate monitor so i purchased it took it home and dismantled the sensors to find what i think is a wireless accellorometer and one with heartbeat sensor and the set comes with a donge that when i plugged it into my labtop it set it up automatically and showed it was sending packets but no response(probably do to the lack of software instruction.

Getting Started with 3D Printing

LMR is a great place to work together, learn and build. When you put cool new tools and tech in the hands of the community here, we can make awesome new things! When I first started wanting to build a 3D printer in 2009, there honestly wasn't much documentation out there to learn from  like today, and lots of my questions were left to the Great Google. Here is an attempt to at least collect some info for those starting on the 3D printing path...

Campus Party Berlin Tempelhof

Ok folks, we are in Berlin and setting up our domain. After a bit hassle with the registration and the tent we finally got everything settled.

We still need a bit organisation miracle to setup the big banner (thanks OddBot) and te live video stream but I guess we will get this done by tomorrow noon.

A whole airport terminal full of nerds, can you imagine that? Please keep in touch to learn more about the CP in Berlin.

Videos are coming in from time to time.

To join the current hangout please click here:

Homemade compound eye

The compound eye from DAGU, designed by Oddbot, is cool and cheap. But I needed a round board to imitate the human eye, so I made one by myself. The IR LED's and photo transistors are the same as in the original design. As I had no PN 100 transistor, I used a BD 139 (the 4 IR LED's draw approx. 100 mA @ 5 V).

Front view of the perf board

Free PCBs looking for a good home

I accidently sent the wrong Gerber files when I ordered some PCBs from http://iteadstudio.com/ so now I’m stuck with 14 boards that I don’t need.
Lesson to be learned : Don’t order PCBs late at night after a 6-pack of beer…

This was my first DipTrace project and I do believe they work. I have not tested the board in detail as I had started another project when they arrived. These are the same boards that I mentioned here
http://letsmakerobots.com/node/30611

MRL - 3D Point Cloud

Put the video up - now got to join the points into a mesh - turn the mesh into a continuous space polygon which will wrap all possible space to move in - and use LKOptical tracking to anchor it to the "real world" ... then we'd be slamm'n

Hi LMRians.  Just thought I might show you the latest software I'm working on in MRL .

Zoomed


HSV depth version

Robotic Development Platform

Hello everybody :)

I made this blog to tell you all about my latest project, after my Robotic Arm project has died out a little.

This little thing will be my first actual "robot". The whole idea behind it is that I will have a platform which will be easy to further develop, and thus be awesome to learn new stuff. 

TinHead and ignoblegnome meet up in NYC

TinHead let it be known that he'd be in the NYC area this weekend following some company training. I couldn't resist the opportunity to meet him in person.

After some communications challenges, we met up in Times Square and then walked down to Bryant Park for some overpriced beer. (Drinks are pretty pricey in NYC.) We were accompanied by TinHead's four lovely co-workers, who were very nice. 

Controlling an Arduino with a standard RC transmitter/receiver

 

 

Controlling an Arduino with a standard RC transmitter/receiver

There are many ways to remote control an Arduino, Xbee, RF link, IR…

I decided to try and use something I had laying around and that is common among large group of hobbyist : RC transmitter and receiver pair

 

One-off Aluminum Bot for Sale

Hey guys, 

I have decided to part with one of my one-off bots. The aluminum bot is currently up for sale. It is complete, fully assembled and pre-programmed with basic autonomous code. Only one of its kind.

 

More info at:

http://rocketbrandstudios.com

4 tons real robot

This robot is insanely huge and human rideable.

 

6 DOF robot hand finished

I finished the 6 DOF robot hand for my project Te no atama today. Here are some pictures. The thumb has two degrees of freedom. The primarily function of the hand is to display hand gestures. A 2 DOF wrist will be added. All servos have a metal gear and are digital.

New Guy to the Group

Hi all I am new to the Let's Make Robots group but an active member of the astromech community and looking for some additional resources and fellow robotics lovers.

Tracked Telepresence Robot

A friend of mine (Dimos) from another site (www.GRobot.gr) started building a tracked robot that would be operated remotely.

 

Stan Winston has a School

Anyone who has an interest in Special Effects knows who Stan Winston is.  For those who don't he is one of the pioneers of special effects and creature construction. Think  the Terminator , Aliens and you start to know who he is.

 

SOMO 14D (WTV020-SD-16P) and MDfly MOL-AU5121 (Tenda TDB380) sound module comparison

The 4D System's SOMO-4D and the MDfly AU5121S are sound playback modules that allow you to add audio to your projects. I've used both and find both are excellent in terms of sound quality vs. price point. Each one is slightly different and has their good and bad points. I will attempt to give the reader a summary of each and provide information that I had to travel the web for to compile myself. Although anyone can find the same info I thought it handy to provide it in one tidy place.

First trials with new 3D-camera attached to Zeiss Cinemizer Plus

Hi there,

As I have announced in my last post this one is going to be on the first trials of my new 3D stereoscopic camera
module. But before we start let's first take a look on the hardware.

Hakko 888 review (Do I really need to?)

This is more of a follow-up to my review of the "9936" soldering iron that disappointed me so badly in my last blog entry.  Let me begin by saying that the problem with the iPad is that it makes it way to easy to buy things while you're taking a crap.

Real Time Lip Syncing on the cheap

Lipsyncing is the process of making an animatronic costume or model mimic the actions of speaking. I use the term mimic as it is currently impossible to make an artifical tougue or larynx that will duplicate speech. So we have to use a speaker with a recorded voice and have an animatronics track to make the movements.

Real Time Lipsyncing is where you do not have the luxury of being able to record tracks and add the lipmovements. It has to be done on the fly and often whilst interacting ad-hoc with an audience.

FreeBOT (work in progress)

Project

FreeBOT - Is a Biped robot designed in Google Sketchup and printed out on a 3d print. My aim is to make it Free to everyone to print and improve. Since I can't afford a NAO.. this was the next best thing :-)

R/C with arduino & NRF24L01+ 2.4GHz Antenna Wireless Transceiver Module

 

October, 11th 2012

Well, my prototype remote controller is nearly finished now.

Bellow you can see the ON/OFF switch placement (that's for you Hoff).

The backside of the board after a hand of nail polish (yeah, I know, yet another archaic method). Also notice the little blue jumper wire that I had to add to correct Eagle's auto-routing mistake (and my blindness to detect it at the that time).

Of mice and men...

UPDATE: This project is now complete. Further details can be seen at GhostRoachMouseBullRam project page. You can still read below to see my adventures and problems encountered this project.

Introduction

Hi Folks. This is a introduction of who I am and what I do.

My main interests is in advanced costumes and animatronic.  For example you may have seen movies like Predator or Underworld where the actor wears a costume that has a lot of servo's in it to make that character come to life.

One could say that a costume of that complexity is basically a robot that you can wear. Especially if  a lot of the emotions are preprogrammed into the costume and triggeed by outside events.

Picaxoid

Sneak preview of my new project. Just some pics...

More soon...

Almost got my stuffs for learning to build a first beginner robot

I just got almost all of my packages for starting with robotic and I am thrilled but lately busy with my work so probably will start to work on it soon once I got all  my stuffs :D

To be continued...

A Preview on the NerdConv1

Today my wife went to the cinema with my kids and I took the resulting moment of quietness at home to build up two new NerdCam1 modules. I wanted to have them ready as the new base PCB for the NerdConv1 - my new video side-by-side converter - is approaching.

The two new cams with customized optics and spacers for firm attachment

9936 Soldering Iron Review

I kind of got on the "I need a better iron" bandwagon and picked out this one off of eBay for around US $35.00:

It's basically a Hakko/Aoyue/Atten style 907 pencil and an electronic control unit somewhat like what Gareth reviewed a whiile ago.  This has a built-in AC line and the read out is oriented the other way.

Sparkfun Variable Temp Soldering Station ~ Review

Well my Sparkfun Soldering Station finally arrived in the mail today, and oh boy I was so excited, I nearly squeeled with glee I grunted in anticipation. Put on your safety goggles, and take it for a spin with me!

 

My first picaxe projects

When I first started with picaxe as a microcontroller (a few days ago), I thought on one hand at the space used by it. An arduino board is, depending on the model, 10-15 times larger than a pîcaxe microcontroller ( maybe a little less).There is also the money problem, a picaxe being a lot cheaper than an arduino and on the other hand I can use arduinos to much more complex projects.