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by mkopack
Sun Jun 24, 2012 10:58 pm
Forum: Automation, sensing and robotics
Topic: ROS (Robot Operating System) on RPi
Replies: 124
Views: 42928

Re: ROS on RPi

Ok, so I'm giving this another go on Raspbian today... Fuerte is still no go, but I've managed to get past the issue with Electric where it was looking for a specific version of Boost that wasn't available on Raspbian. Instead I went through the Electric instructions here: http://www.ros.org/wiki/el...
by mkopack
Mon Jun 18, 2012 9:30 pm
Forum: Automation, sensing and robotics
Topic: raspberrypi/pololu3pi
Replies: 4
Views: 1891

Re: raspberrypi/pololu3pi

Is this the base 3Pi computer, or one with the expansion board (basically has a 2nd level on it with a replacement CPU) ??? But the answer is YES, you CAN do stuff with it, it's just a matter of how much you want to spend to get the hardware to interface them. Some things you could do - Assuming you...
by mkopack
Mon Jun 11, 2012 3:27 pm
Forum: Raspbian
Topic: Raspbian on "external" USB hard drive
Replies: 53
Views: 20787

Re: Raspbian on "external" USB hard drive

I have Hexxeh's R3 image installed on a Pi. I originally was running it off a 16GB Samsung Class 6 SD card, but then got a deal on a 32GB Patriot SSD, so I got that and a 2.5" USB enclosure cheap. I imaged the SSD with the same system image, and copied /boot over to an OLD 256MB SD card. Boots up ju...
by mkopack
Wed Jun 06, 2012 1:29 pm
Forum: Automation, sensing and robotics
Topic: Would like to control some motors, but where to start? Help
Replies: 21
Views: 9375

Re: Would like to control some motors, but where to start? H

Yes, agreed, very good book. One of the guys in the local robotics club brought a copy of that in to one of the meetings and I flipped through it. Lots of great info in there. I need to get a copy for myself, I just don't know when the heck I'd have time to read it! (grumbles about stupid grad schoo...
by mkopack
Fri Jun 01, 2012 5:06 pm
Forum: Automation, sensing and robotics
Topic: Would like to control some motors, but where to start? Help
Replies: 21
Views: 9375

Re: Would like to control some motors, but where to start? H

The Gertboard is just a collection of useful components put together on a single board, the part doing the motor control is a L6203 DMOS Full Bridge Driver. You don't really need any of the other parts of the Gertboard if all you want to do is control a motor with PWM, just a L6203. ^^^^^^^^^^^^^^^...
by mkopack
Fri Jun 01, 2012 5:03 pm
Forum: Automation, sensing and robotics
Topic: Would like to control some motors, but where to start? Help
Replies: 21
Views: 9375

Re: Would like to control some motors, but where to start? H

If you're getting excited about the Gertboard, but have a problem with just using the GPIO to control a motor driver, I have news for you, that's EXACTLY what the Gertboard has on it! It contains a motor controller chip and you hook one of the GPIO pins on the Pi to the motor controller on the Gertb...
by mkopack
Fri Jun 01, 2012 11:55 am
Forum: Automation, sensing and robotics
Topic: Using RPi as a Standard Robotics Interface
Replies: 33
Views: 10933

Re: Using RPi as a Standard Robotics Interface

That's true for the scribbler 2 (red one). The original (blue) scribbler didn't have that sort of processor on it...
by mkopack
Fri Jun 01, 2012 11:51 am
Forum: Automation, sensing and robotics
Topic: ROS (Robot Operating System) on RPi
Replies: 124
Views: 42928

Re: ROS on RPi

Oh and I should mention that I still couldn't get it to work on Raspbian, so stick with the normal Debian release for now... Electric kept wanting libboost-1.42-dev-all, and even though I installed v.1.49 it still kept insisting it needed to find 1.42, and refused to continue. 1.42 doesn't exist in ...
by mkopack
Fri Jun 01, 2012 1:03 am
Forum: Automation, sensing and robotics
Topic: Would like to control some motors, but where to start? Help
Replies: 21
Views: 9375

Re: Would like to control some motors, but where to start? H

ok, driving the motors directly from the Pi without any additional components isn't going to happen - the pi can't put out anywhere near enough power on the pins to directly power a motor. You'll need to read up on motor controllers for doing that, and just use the Pi to send control signals to the ...
by mkopack
Thu May 31, 2012 9:40 pm
Forum: Automation, sensing and robotics
Topic: Raspberry Pi and 3D Printers
Replies: 13
Views: 14427

Re: Raspberry Pi and 3D Printers

Morgaine: Yeah, I think you're on the right track... Use the RPi as the replacement for your existing PC that is doing the slicing and sending of data to the Arduino based controller. Might not be as fast at doing the slicing, but no reason it shouldn't work just like your current PC does for that j...
by mkopack
Thu May 31, 2012 7:10 pm
Forum: Automation, sensing and robotics
Topic: ROS (Robot Operating System) on RPi
Replies: 124
Views: 42928

Re: ROS on RPi

To be honest, I wouldn't have a clue how to go about making it... especially since a lot of it gets installed into your user directory, so you really need to build it yourself. It's really a pretty easy install (for Electric). All I did was: 1) Make a fresh SD card from the Debian 4-19-2012 image 2)...
by mkopack
Thu May 31, 2012 3:46 am
Forum: Automation, sensing and robotics
Topic: Using RPi as a Standard Robotics Interface
Replies: 33
Views: 10933

Re: Using RPi as a Standard Robotics Interface

What do you need to do with the Raspberrypi to make it work with the Scrbbler robot ? The Scribbler Robot- a tool for teaching programming Can The Raspberrypi replace the IPRE Fluke Add-On Board ? http://find.botmag.com/508125 http://www.parallax.com/go/S2 http://www.betterbots.com/ http://wiki.rob...
by mkopack
Thu May 31, 2012 3:40 am
Forum: Automation, sensing and robotics
Topic: ROS (Robot Operating System) on RPi
Replies: 124
Views: 42928

Re: ROS on RPi

Ok, I can report at least some initial success, and I'll have to test more tomorrow when I get home from work... The key is, use electric instead of Fuerte. Fuerte has only been out about a month or so, and it obviously has issues with Debian. Electric is about a year old and thus us a lot more matu...
by mkopack
Thu May 31, 2012 12:06 am
Forum: Automation, sensing and robotics
Topic: ROS (Robot Operating System) on RPi
Replies: 124
Views: 42928

Re: ROS on RPi

Well, tried to get Fuerte up on Debian and ran into the EXACT same problems...

Giving Electric a try now... gonna take a while to build and install though... Will report once I have something to report!
by mkopack
Wed May 30, 2012 2:57 pm
Forum: Automation, sensing and robotics
Topic: Raspberry Pi and 3D Printers
Replies: 13
Views: 14427

Re: Raspberry Pi and 3D Printers

What's wrong with Java on the Pi? It works...
by mkopack
Wed May 30, 2012 1:25 am
Forum: Automation, sensing and robotics
Topic: ROS (Robot Operating System) on RPi
Replies: 124
Views: 42928

Re: ROS on RPi

Ok, well, I managed to get the cmake to work: The ROS instructions tell you to add 2 settings to your .bashrc to point gcc and g++ to versions 4.5. When you go to do cmake for yaml-cpp that screws up cmake. So you have to temporarily remove those and logout/back in, then go to the yaml-cpp/ director...
by mkopack
Tue May 29, 2012 2:06 pm
Forum: Raspbian
Topic: packages you want to see in raspbian
Replies: 133
Views: 34282

Re: packages you want to see in raspbian

If you're talking about need to be build for Raspbian (rather than installed in a base image) then I REALLY could use: yaml-cpp ( http://code.google.com/p/yaml-cpp/ ) It's like the ONLY remaining package I need to get ROS installed on Raspbian. I've tried building from source but I have no idea what...
by mkopack
Tue May 29, 2012 2:01 pm
Forum: Beginners
Topic: Need help building yaml-cpp for Raspbian...
Replies: 0
Views: 1166

Need help building yaml-cpp for Raspbian...

Hey gang, I'm trying to get RobotOS (ROS) working on my RPi (running Raspbian). I've run into 1 package that isn't in the Raspbian repository yet so I'm having to build it myself and I'm kinda clueless on what I'm doing to get it working. The code is at: http://code.google.com/p/yaml-cpp/ I have CMa...
by mkopack
Tue May 29, 2012 12:22 am
Forum: Automation, sensing and robotics
Topic: ROS (Robot Operating System) on RPi
Replies: 124
Views: 42928

Re: ROS on RPi

OK, so I determined that there's a couple additional packages you need to install.. eigen3: this one is in the raspbian repository: apt-get install libeigen3-dev libeigen3-doc I had to create a txt file in /usr/include/eigen3/ called "eigen-version.installed" and I put just a line containing 3.0.5 i...
by mkopack
Sat May 26, 2012 5:26 pm
Forum: Automation, sensing and robotics
Topic: ROS (Robot Operating System) on RPi
Replies: 124
Views: 42928

Re: ROS on RPi

I've gotten quite a bit farther.. but still at another stuck point. First off, Raspbian sets up /tmp to be a RAMdisk. This causes problems during the install process as there's not enough space to unpack some of the packages used by ROS. I've posted the things I've had to do to get around the proble...
by mkopack
Sat May 26, 2012 4:03 am
Forum: Automation, sensing and robotics
Topic: ROS (Robot Operating System) on RPi
Replies: 124
Views: 42928

Re: ROS on RPi

Ok, the original author of the instructions got back to me. Turns out he posted the wrong file to replace... Also, if you follow the directions, make sure you grab that turtle.cpp file, but you need to do a "Save As" because for some reason the site tries to save it as a BMP file. It IS a .cpp thoug...
by mkopack
Sat May 26, 2012 3:06 am
Forum: Automation, sensing and robotics
Topic: ROS (Robot Operating System) on RPi
Replies: 124
Views: 42928

Re: ROS on RPi

Eh, still no luck. Getting the following error: [ 92%] Building CXX object ros_tutorials/turtlesim/CMakeFiles/turtlesim_node.dir/src/turtle.cpp.o /home/mkopack/ros-underlay/ros_tutorials/turtlesim/src/turtle.cpp: In member function ‘bool turtlesim::Turtle::update(double, QPainter&, const QImage&, qr...
by mkopack
Fri May 25, 2012 9:48 pm
Forum: Automation, sensing and robotics
Topic: ROS (Robot Operating System) on RPi
Replies: 124
Views: 42928

Re: ROS on RPi

Ok, just noticed that there's a couple of things the ROS install page tells you to do if you're running on a version of Debian > Squeeze (Raspbian is based on Wheezy), so I'll give those a try when I get home tonight.
by mkopack
Fri May 25, 2012 9:36 pm
Forum: Automation, sensing and robotics
Topic: ROS (Robot Operating System) on RPi
Replies: 124
Views: 42928

Re: ROS on RPi

Well, so far no go. It keeps having issues when trying to compile up turtlesim.cpp. Seems like the std::max() function being called in turtlesim.cpp lines 136, 162, 163 can't be found. I'm running on Raspbian-r3 so I don't know if that's got anything to do with it. Kinda frustrating. I'll have to po...
by mkopack
Fri May 25, 2012 5:50 pm
Forum: Automation, sensing and robotics
Topic: ROS (Robot Operating System) on RPi
Replies: 124
Views: 42928

ROS (Robot Operating System) on RPi

Found this last night while trying to figure out how to get ROS installed on the Pi... http://answers.ros.org/question/34501/how-to-setting-up-ros-on-raspberrypi/ I'm going through the instructions right now and will report back if they work. My first try using the turtlesim.cpp that they provide in...

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