Thanks to David Calkins and everyone else who put on RoboGames; what a fantastic event. This was the first year I was able to bring my son (age 4) and he...
Hi SFRSA members, I'm new to the area, and am looking for sources of surplus motion control components-- servos, steppers, rails, etc. I am a motion control...
I wouldn't mind having a copy of that... Bill H....
William Hubbard
robotics@...
Apr 4, 2005 3:35 pm
1698
File uploaded as Micromouse Maze Solver In Turbo Pascal. I developed this on a pure DOS box but I just tried it in a CMD window under Windows XP Pro and it...
... Now ... in ... enjoyed ... Machinery ... Bataef ... Hi Bruce, Welcome to the North Bay. I'm in Santa Rosa so we're effectively neighbors. The only place...
For anyone who wants to understand stepper motors they should read the two links below. A great detail over view how stepper motors work http://smallbiz- ...
RoboNexus - the huge consumer robot show in San Jose - returns! And we want your robot! This competition will include: Robot Soccer (MiroSot and Aibo),...
Roboteers, This is a reminder that our group meeting is this Saturday, April 9th at Brighton Academy 1121 NE 7th St, Grants Pass starting at 6pm. Everyone...
Parallax, Inc., makers of the BASIC Stamp microcontroller and the Boe- Bot, has a job opening for a Junior Network Adminstrator. Details are on the web site...
Hello Everyone, I've always been interested in building robots but I have never gotten around to doing it. I have many of the basic background (electronics,...
DK, Where in the Bay are you? It is a very big bay! Are you mainly interested in battle robots? - Bob ... From: dktkd9999 To: sfrsa@yahoogroups.com Sent:...
Hey Bob, I live in San Francisco. But i can drive outside of the city. But not to far, considering gas prices. :) I don't mind working on any type of robot. I...
D K
dktkd@...
Apr 18, 2005 10:12 pm
1709
hi dk i am also doing my project on robotics and am alone for which i want some ones help as u have good background of programming and robotics so i want you...
Hello Ankit, Thank you for you interest. My strengths are more on the mechanical side. As a EE student at RIMT you are probably ahead of me as far as...
D K
dktkd@...
Apr 19, 2005 4:29 pm
1711
Online registration for PDXbot'05 is now open! The RoboMagellan contest is Saturday, April 30th at 2:00 PM in the South Park Blocks on the PSU Campus. The...
Hello all! I hope I can get some quick help from someone in the group. Specifically: I need a good small H-bridge DC motor controller. something preferably as...
Since you are switching with a mercury switch, I'm assuming absolute positioning must not be critical. It doesn't sound like you are going to use speed...
How about a relay solution. If you already have mercury switches set up then one of them could trigger one DPST relay that drives the motor in one direction...
You are correct, absolute positioning isn't vital - just making a contact when torque is sensed through the wires, and then move to untwist until the torque is...
Ok, there are other considerations... Try the 754410 driver chip. It is good for about 800 mA per side at a motor supply voltage of as low as 4.5V. By the...
Hey im hoping if there is anyone here willing to tell me what i can do to volunteer as a helper or something for robotics. I was thinking since there is...
Hello, I am looking for a 1-dimensional PSD sensor for a micromouse application. It seems like there are lots of PSD sensors available, but I'm looking for a...
to give an update on my search for my sensor: i found a vague paper describing how to build a PSD sensor for those that are interested in making one: ...
Enter your vote today! A new poll has been created for the sfrsa group: will the relation between china and japan be better after japanease PM's meeting with...
sfrsa@yahoogroups.com
Apr 26, 2005 9:45 am
1721
Thank you again! Just got the chips in and am going to play with it today. Just one thing I am not clear on - putting a cap _across_ the motor leads. I...
Hi Terry, ... I think you may be confusing diodes and capacitors. Diodes only allow current to flow in one direction. Some capacitors will only work properly...
yep, you are completely correct, that is definitely it!! sorry about that. I had looked at trying to put diodes in my first homemade design, and my thought...
