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1  Community / Local Groups / St. Louis MO, Sat. Sept. 17th on: August 22, 2011, 05:59:07 pm
Our robotics/electronics group, ROBOMO, is having an introduction to Arduino at our next meeting on Saturday, September 17th. Anyone and everyone is invited to drop by. We meet at a public library. For directions and other details, go to .
2  Forum 2005-2010 (read only) / Bugs & Suggestions / Re: Arduino 0010 on Ubuntu window size-SOLVED! on: October 24, 2007, 06:53:02 pm
Hi All,

D/L the newest version of Automatix for Ubuntu 7.10 and installed Java from there. Problem solved!

Thanks for all of your input and suggestions.

3  Forum 2005-2010 (read only) / Bugs & Suggestions / Re: Arduino 0010 on Ubuntu window size on: October 24, 2007, 06:26:51 pm
D/L Processing and it does the exact same thing. When maximized, the programming area does not expand to fill the screen.

4  Forum 2005-2010 (read only) / Bugs & Suggestions / Re: Arduino 0010 on Ubuntu window size on: October 24, 2007, 03:08:16 am
The output is :

java version "1.5.0_13"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_13-b05)
Java HotSpot(TM) Client VM (build 1.5.0_13-b05, mixed mode, sharing)

The editor area only fills about 1/3 of the screen when the window is maximized. Sliding the split screen has no effect on the overall size of the editor area.

5  Forum 2005-2010 (read only) / Bugs & Suggestions / Re: Arduino 0010 on Ubuntu window size on: October 23, 2007, 11:51:30 pm
According to synaptic (the only way I know how to check) I am using:

sun-java5-jre    1.5.0-13ubuntu1


java-common    0.26ubuntu1

6  Forum 2005-2010 (read only) / Bugs & Suggestions / Arduino 0010 on Ubuntu window size-SOLVED! on: October 23, 2007, 09:02:02 pm
Hi all,

Running Arduino 0010 on Ubuntu 7.10. When I start Arduino, it is in a small window. When I maximize the window, the editor area stays small although the window fills the screen.

I have looked at the preferences file (home/.arduino/preferences.txt) and made some changes but they don't seem to make any difference.

Not a big deal, but it would be nice to see more of the lines I am typing.


7  Forum 2005-2010 (read only) / Development / Re: Sell the Severino? on: June 03, 2008, 09:50:52 pm
We are actually planning on modifying the board to include a motor driver, something along the lines of a 298. Single sided will enable us to etch them ourselves as needed. Plus there is the whole "do it yourself" factor.

8  Forum 2005-2010 (read only) / Development / Sell the Severino? on: June 03, 2008, 01:56:49 pm
Hi all,

I am interested in getting our local robotics group to produce a "club standard" micro board. Right now I am the only one that uses the Arduino, but we are heavily biased toward the Mega8 and 16, using BASCOM as a compiler. I gave a presentation on the Arduino a few months back and got some positive feedback.

I would like our club to produce and sell the Severino (or other single sided board) as a kit to new and existing members to finance our competitions.

Have any of you done anything similar, or have any advice for me? We don't have a lawyer in our club.


9  Forum 2005-2010 (read only) / Interfacing / How to proceed? Mini-magellan robot... on: June 16, 2009, 09:28:11 am
Hi all,

Need advice on how to proceed with my mini-magellan GPS robot.

I have the robot essentially done except for the coding. Chassis, motors, motor drivers, GPS unit, etc. are all in place and functioning.

The mini-magellan competition I hope to enter requires that the robot navigate as close as possible to 4 or 5 cones that are in known positions. Ideally, when the robot gets close to a cone it uses vision or some other method to approach and then lightly touch the cone for extra points. My goal for this robot is to just get close.

My problem is the GPS code. I'm pretty much a newb, and have been struggling with how to make the GPS end of it work. I have been looking at the Ardupilot code, and the TinyGPS library as possible solutions.

The Ardupilot does way more than I need (altitude, gyros, etc.). There is some talk on the Arudpilot forums about using it for ground based vehicles but I can't find any examples.

My handheld GPS outputs standard NEMA info at 4800bps. I have been able to connect the GPS to the 9pin serial on my Arduino and display the raw data on an LCD screen.

This robot will be going up against some potentially very complex and expensive bots, so I don't expect to win. I just want to successfully complete the course.

Any advice would be welcomed.

10  Forum 2005-2010 (read only) / Interfacing / Re: arduino with sumovore on: July 25, 2008, 10:44:00 am
I too have been looking at doing this with my Sumovore. Although the stock Sumovore is remarkably capable. It holds it's own against MarkIII's and Sumobots. Especailly with the optional rear IR sensor.

I had thought about programming a Mega8 using my Arduino board and then transferring the chip to the Solarbotics Atmel brainboard for the Sumovore.
11  Forum 2005-2010 (read only) / Interfacing / Re: Simple IR sensors on: June 22, 2008, 01:32:28 pm
Hi Ben...I have had no luck with the circuit. No reliable output at all.

I could not find a 10nf cap at the local store, but they had 9nf ones. Maybe that is not close enough. Also, I'm using the Radio Shack IR xmt/rcv pair.

The transmitter is nice and bright (viewed through digicam) so I think the prob is my receiver. I'm going to get some of those Panasonic IR receivers like I have in my Sumovore.

12  Forum 2005-2010 (read only) / Interfacing / Re: Simple IR sensors on: June 11, 2008, 07:56:48 pm
Wow, thanks for the effort! There has been a lot of buzz in our club over the video you posted with the Orangutans doing the line following competition. I am doing my best to get other people, especially the newbies, to consider the Arduino. After seeing that video, some of the more experienced guys are interested now.

I'll go ahead and put a link to Pololu on our website.
13  Forum 2005-2010 (read only) / Interfacing / Re: Simple IR sensors on: June 11, 2008, 02:33:47 pm
Here is a link to a sketch of the maze...

The maze is actually built on a 4'x8' plywood base, so the sketch is not to scale.

14  Forum 2005-2010 (read only) / Interfacing / Re: Simple IR sensors on: June 11, 2008, 01:26:28 pm
The path down the maze is 12". The robot is about 4 inches wide, so a sensor that could read from 0" to 8" would work. If I could get some kind of reading from each side mounted sensor, I could probably manage a way to compare those readings and center the bot.
15  Forum 2005-2010 (read only) / Interfacing / Simple IR sensors on: June 11, 2008, 12:22:47 pm
Hi All,

I am building a simple Arduino based robot for our clubs upcoming competition. The robot has to navigate a very simple maze, just a series of left and right turns, through the "4 elements". Each section of the maze will feature an element, ie. water, fire, wind, and earth.

What I would like to do is use a simple IR sensor schematic like this one:

I would like to be able to center the robot between the maze walls, and detect when to turn. I know there are ready made distance measuring sensors (sharp, ping, etc.) but I want to do this as simply as possible. This is my first complete robot.

1. Does anyone have ideas on how to center the robot between the walls?
2. Do you have a better schematic or idea for the IR sensors (but still simple and inexpensive)?


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