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The HomeBrew Robotics Club was resurrected from the ashes of the original HomeBrew Computer Club by a group enthusiasts who were interested in the emerging field of robotics.
Updated: 3 years 24 weeks ago

Booth at Maker Faire

Wed, 05/29/2013 - 02:15
We moved the tables and covered some of the stuff in plastic. I would call
this a successful day, attracted a lot of attention and talked to a lot of
people. And had to scold some children from pulling on wires... but all in
all a success!!!


Which chips?

Mon, 05/27/2013 - 22:44
I am planning to buy some Atmega328 chips and I am wondering if there
is a difference between the 328 and 328p microcontrollers... I know the 'p' means
picopower, but would that make a difference?


Forgot Netbook charger... Again!

Sun, 05/26/2013 - 20:38
I think my netbook charger might be cursed!
I forgot it at our booth...
Its a small square black Asus charger...

I won't be at the Maker Faire tomarrow unfourtunately, so if anyone finds it, may they
please bring it to the SIG or the meeting?


Next Stop: Maker Faire

Fri, 05/24/2013 - 18:41
Maker Faire Bay Area 2013
HomeBrew Robotics Club
Hope to see you there!

A couple of problems with Maxwell's Chess package

Thu, 05/23/2013 - 17:49
Hi Fergs,

I'm trying your Chess package using Maxwell in fake mode to see if I can
move the gripper to a target pose, and I've run into a couple of
glitches. To fire things up I run:

$ roslaunch maxwell_moveit_config demo_fake.launch

and everything comes up OK including RViz with Maxwell nicely displayed.

Robosoccer Robots

Thu, 05/23/2013 - 04:27

I was wondering if anybody knows a vendor from whom I can purchase
Robosoccer robots. Those cube shaped robots that can remotely controlled
using wireless communications.

Please let me know if you have any info.

Sai Vaddi

Suggestions for 4-wire cable connector?

Wed, 05/22/2013 - 22:00
My latest gadget has an 4-pin I2C port. The first version of the prototype
used a micro USB port for this purpose but it finally dawned on me that
someone would certainly mistake it for a charging port and plug in a hot
USB cable. So I would rather use some other kind of connector - and in
particular it needs to be panel mount and a connector type for which I can

Gripper choices?

Wed, 05/22/2013 - 22:00
I know that Fergs has experimented with many gripper designs on Maxwell
so this question is partly aimed at his experience but I hope others
will join in.

I need a Dynamixel-compatible gripper for Pi Robot that would be
suitable for playing with the new ROS MoveIt! pick and place. I've
always been impressed how well the PR2 does with its (apparently) simple

Maker Faire Setup

Wed, 05/22/2013 - 18:45
Do you have details as to when the booth will be ready for bringing in
bots? Also, do they have security there for the overnight, or should we
bring all of our items home? sat and return sunday?



Um, PR2... Would you fetch me a cup of coffee?

Wed, 05/22/2013 - 10:39
Seen this one floating around... congratulations, Tony! (among others)... advancing the field of robotics as a whole!
Why Teaching a Robot to Fetch a Cup of Coffee Matters
- Camp

Roy the Robot

Tue, 05/21/2013 - 19:51
Caught this one in POPSCI:
Meet Roy

Which ROS Version?

Mon, 05/20/2013 - 22:30
So I just did a clean install of Ubuntu 12.04 on my netbook, and I am wondering which version of ROS I should install.
Because I generally use ROS for my Neato, I need a version that will work best for it.
Fuerte or Groovy?

(Looking forward to using catkin!)


Cool HomeBrewed Robot

Mon, 05/20/2013 - 22:30
Got this from the "The Robot Group" list.
The real Robocop: Ex-policeman builds robot from household goods

Club Turtlebot at Hacker DoJo

Mon, 05/20/2013 - 08:20
If anyone knows where the charger for Willie's netbook went, please illuminate us. We went ahead and ordered a new one. Just In case. I loaded the
groovy version turtlebot stacks on my Ububtu (11.10 unsupported) laptop and got the Kinect to start with:

roslaunch turtlebot_bringup 3Dsensor.launch

Raspberry Pi Camera module

Sun, 05/19/2013 - 16:31
Something new I ran across.



Floorbot Challenge

Sun, 05/19/2013 - 09:13
The main meeting in June kicks off HBRC's Annual Robot Challenge
Events. Last year we added the Floorbot Challenge. This gives people
with robots too big to fit on a table a chance to show off their robots
under actual test conditions. The Floorbot Challenge is even more "free
form" than the Tabletop Challenge so you can make it accommodate the


Sun, 05/19/2013 - 05:02
I built a 2nd Nanosumo robot. The front leds light up when there is
something there, but I don't use them yet. Interesting how one robot
curves, the other goes straight, and they can't catch each other.


Bill W.

Neato Node On Raspberry Pi Experiment complete, I think.

Sun, 05/19/2013 - 05:02
The good news:

Mike's Neato-node Catkinized code under Groovy works on the RPi. I was able to get the LDS spinning and return valid measurements via rostopic echo.
The only modification needed to make it work was the same thing I needed to do to get it to work under Ubuntu - which was changing USB0 to ACM0 in the node script. (Don't yell at me Fergy)

Acrobatic RHex jumps gaps and leaps ledges 1.5x it's body length

Fri, 05/17/2013 - 21:22
I've seen these little guys before but usually only covering ground quickly
over really rough terrain. Looks like the now have it leaping gaps and
climbing cliffs.

Club Turtlebot.

Fri, 05/17/2013 - 21:22
Is the current version of ROS on "Willie" Electric? What should it be?

If we need to bring it up under Groovy, is there a valid groovy rviz config (default.vcg) file to go with it?


Alan N. Federman, PhD
(408)227-6106 Home