lnxfergy is currently certified at Master level.

Name: Michael Ferguson
Member since: 2003-06-16 00:58:36
Last Login: 2008-12-20 17:15:23

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Homepage: http://home.nycap.rr.com/ferginfo/Robots/

Notes:

I have been building robots on and off for about six years now. I am a junior at SUNY Albany, where I am majoring in Mathematics, with a minor in CS.

I have several current projects:

Little Green Machine 3 (LGM3), a behavior based robot that will compete in the 2008 Trinty Fire Fighting Competition. It uses the ARC Robot Controller and is programmed in AVR-GCC. Most of the driver code was ported from LGM2's PSoC architecture.

Green Machine Reloaded (GMR), is a more advanced version of LGMs hardware. It has an AVRCam, movable head, and closed loop motion control. As my development on LGM3 raps up I will begin coding GMR's logic.

XR-A4, is my test bot. Currently I am working on getting XBee wireless up and working, as well as interfacing with the AVRcam.

Projects

Recent blog entries by lnxfergy

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13 Mar 2008 (updated 13 Mar 2008 at 18:01 UTC) »

It's been a while since I've posted on this site (just under two years in fact). In that time I've made a lot of progress on several projects, and just in my knowledge of robotics.

Over the past year I have gone through a total redevelopment of my robot hardware. I've moved from using PSoCs in my robots to using Atmel AVRs. I love AVRs. AVR-GCC is a great, and free, compiler - but the greatest thing about AVRs is their tolerance to power supply fluctuation caused by motors. I've also discovered the LM2940CT-5.0 power regulator, which is a great and fairly inexpensive regulator. The 2940 is easier to set up and I seem to get better results than with the 5V switching regulators from Maxim that I had been messing around with (until they discontinued them). For my latest robot, GMR (which is still under consruction), I purchased some of Lynxmotion's new Servo Erector Set parts to make the neck pan and tilt - I was very impressed with the parts.

This semester I've been taking a robotics course through UAlbany. We are using Sony AIBOs, with Tekkotsu. In theory this is a really nice package - a behavior based, c++ programmable robot. Unfortunately much of the documentation is poor or out of date, and some of the constructs in Tekkotsu are incredibly non-standard and hard to understand. All-in-all though I like the idea, and once you get used to (and figure out how to) use Tekkotsu, it's quite nice.

Finally, I'm working on my third (and probably final) robot for the senior division of the Trinity Fire Fighting competition. I believe I have really worked out all of the kinks of previous years (poor drive train, sensor placement, power failures). The underlying software design is really over the top for the problem at hand , but it is planned in such a way that it can be extended to a future Expert division robot. The competition is about a month away - so far I have the robot navigating the maze with near perfection. The room search functions are currently non as reliable, but I have high hopes for Bayesian analysis method of filtering the UVTron. I've got some information on all of my projects on my website

-Mike

Two weeks to go...

before the Trinity Fire Fighting Competition. The mechanical stuff is all done, the electrical stuff is all done, the motion control is working. Now I just have to make the robot actually fight fires and search the maze.

I put up a few quick pictures and a hardware description of the Little Green Machine II on my website

-Fergy

8 Mar 2006 (updated 10 Mar 2008 at 04:21 UTC) »
Projects, Projects, Projects
So next week is spring break, and I am really looking forward to finally having time to finish up the LGM2 for the Trinity Fire Fighting Contest. I also hope to post a couple updates to my website in the next couple weeks.

-Fergy

14 Jan 2004 (updated 23 Mar 2006 at 22:42 UTC) »

10 older entries...

 

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