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Robot – work in progress

Chopping board Bot

 
Update: been through a few revisions, new pics added of the last mods and the latest mod-in-progress (front+rear castors, mid-mounted motors and batteries)  This … Read more
graphworlok
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Forum topic

IR and Sensor rangefinding data visualisation

By graphworlok

September 21, 2009

These images were created by stepping a pair of servo motors to create a file containing sensor readings for each possible servo position.

I took 3 readings for each position from each servo and stored them in a file, then read the data back in a seperate pygame program running on a desktop to generate the image. RGB values were generated from the 3 readings from each sensor.

Blog entry

3D scanning/artificial robot vision

By graphworlok

September 9, 2009

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.

 

Project: 
Chopping board Bot
Forum topic

Reading USB mouse data in linux - somebody else C app and my python

By graphworlok

July 26, 2009

Here is a slightly modified (added in hs and vs) c utility, and my python version. they will read the linux /dev/input/mouse data and convert it into status and x/y deltas

i noticed my python app seems quite different to the c app. not quite sure - default int()  types in c must be signed, i dont know... my second two bytes for x,y have MSB set if they are negative, but this value is also set in bits 5 and 6 of byte 1 from what my python tells me..

 

comments welcome!

Forum topic

Converting X,Y mouse positions to skid seering commands

By graphworlok

May 19, 2009

For quick demonstrations/easy testing of hardware, i am trying to write a pygame interface to a skid steering robot.

Robot – work in progress

Beer Fetching robot, current state

 
This is the third or so generation of this robot. The previous versions were all tracked, and the first few used a balsa wood frame. Many reasons for failure, … Read more
graphworlok
Blog entry

So, here goes..

By graphworlok

March 1, 2009

These are videos of my robot. A few improvements since these were done, more to come. Polou servo controller, python, wxwidgets, polymorph/shaplock plastic

http://www.youtube.com/watch?v=dqXTluYT8xU

http://www.youtube.com/watch?v=yhCQ4Jg7dJ4