Let's Make Robots!

3D printed LMR Logo Bot

Since I need to test and improve the 3D printer on my desk I wanted to print a LMR logo bot. After a short request in the forum I've got the 3D file from birdmun, who else could answer that qucik and even have the right thing you need. bird, thanks man....you are the true LMneRd ;-) That is the file: https://www.dropbox.com/s/v4vgif5tude0v63/LMRLogobot.stl 

Now the pictures:

Logo Bot 3D model

In preparation for the Campus party I want to print some of the logo bots. Does anybody have the 3D model available? I do not have enough time to create it by myselves. Anybody up to create one which I could use?

 

Maker Faire 2013 in Hannover

Last weekend the first Maker Faire has been landed in Hannover, Germany. It was a great success and a real time experience for me. The only bad things I can tell, it was too short (only one day) and too hot. Approximatly 4500 visitors have visited the exhibition and our booth was surrounded with crowds of people all the time. Too less time for me to walk around to see other makers. 

BoB the Biped and Me: Edge detection vid and fun assembly vid (updated)

After spending a good deal of time working on a couple of BoB's subassemblies I've been given some time to think more about how to use those extra headers on the circuit board. I really want bump detection, edge detection, and a speaker but I know only one or two of those are going to fit inside the chassis. After letting BoB wander around on the floor at length I realized how prone he is to toppling over. That plus the fact he will be spending time on a bar, where sinks full of water lurk below, I decided to work on the edge detection.

R2D2 Third Leg

Started to work on the third leg today. Inside the body four aluminium pipes guide the platform where the third leg will be attached to. The platform needs more stability going up and down, so extra gliding holes will be placed somewhat higher around each pipe in order to make sure the platform stays horizontal when moved.

Simple 4 pixel camera sensor

In the following I describe a simple 4 pixel camera sensor, which can be versatilely used in robotics.

The sensor consists in general of four pin photo diodes with a relatively large photo sensitive area, arranged in a square, and an according collimator lens. Every photo diode can be thought of a quadrant of a two dimensional graph. We can use the sensor to measure the intensity of light, detect motions, track a light source in two dimensions or do basic 2-D optical flow calculations.

RC bot!

Hey every one! i guess this video will be of help to people who want to make a radio controlled car. i wont be able to make one but heres the video of the model!

https://www.youtube.com/watch?v=sWmPwt5x2bc

A Simple Way To Give a Bot Motivations, Decision Making, Better Autonomy

Recently, I got to thinking...there must be a better way to program autonomous behavior (than my previous attempts).

I thought about people, people have various motivations, why shouldn't bots?  When people get hungry, they eat.  When they get curious, they look around.  When sleepy, they sleep.  Surely bots have needs and priorities that should influence their behavior.

Red BoB has arrived

Hi,

I'm so excited, and FrankenBoB, too. Isotope has sent me 3D printed BoB parts and a cool name badge from Canada. Thank you so much, Vadim. This time I need to pay you the beer at Campus Party.


BoB the Biped and Me: LEDs, camera, action! (updated)

I finally got a quartet of routines that produce pleasing lighting effects out of BoB's toothless grin. Using CYZ-RGB LED pixels for hardware. If you have any other ideas for light sequences I'd love to hear them, please.

edit - July 14th, 2013

Added test code slightly different that what is seen in the video but essentially the same.

Accurate Indoor Localization using OpenCV, OCR

Just got this pieced together...Robot looks around, recognizes words written on walls and determines compass bearings to each.  Robot then determines what room it is in based on its memory of visual landmarks, and loads a map for the given room.  At this point, the robot calculates its location in the room to within a few inches.  Robot then knows where other features are within the room based on its map (Doors, Windows, Obstacles).  In the video, the robot announces the heading to the door.

ALF XXL

Well, as ALF got retired and the motors are not available anymore I am going to build another ALF, but this time XXL.

The prototype is already breadboarded and working. The beam is made of two disposable chopsticks (what else when you live in China...LOL)

But a picture says more than a thousand words...

...and that's a nice ass...

LU2MI2 build log: July 11th, 2013

As noted elsewhere I had to start something new to add updates to this project and from now on it will be in the form of blogs (it's about time, huh!). To summarize the project's status, things were going well until I went to test all the subsystems together on the actual chassis. I had forgotten to breadboard test the 3.7g servo at the 3.3V I was going to supply it with and it turns out it hated it.

ANNIVERSARY SALE, FREE SHIPPING and GIFTS!

DFRobot is now three years young. 

Usually the one who has birthday gets some gifts but this time DFRobot is giving away lots of stuff...starting with a FREE SHIPPING DEAL for all orders from today to July 12.

Each of the three days celebration will have some special discount with up to 70% off.

I will shut up now and let you go shopping :-)

BoB the Biped and Me: We celebrate the Seahawks! (updated)

Just a place to put a link to the video of BoB dancing while I applaud. I'll update with more info in the future. Gotta meet my buddy at the pub in a few minutes, hence the brevity.

There are four total dance moves, I think the video only caught three of them (they're randomized).

Update: July, 14th, 2013-

A schematic of of the detection circuit:

 

"Home Robotics" musings - what needs to be done

Hey guys. I wrote this two years ago before creating my robot. Obviously my vision has a long way to go. But I felt then and now that the biggest issue I could help overcome was the mobility side of the equation. Check this out and tell me where I'm wrong! I won't be happy until there is a robot in every home! :o)

Silicon Crusher

Ok, here is our entry for our company intern Sumo Robot Competition. 

The name came to me in a blink of an eye :-) Silicon Crusher (or short SC) is based on the MiniQ chassis as the other participants too. The rules are not exactly Mini Sumo rules but based on it (http://robogames.net/rules/all-sumo.php)