JKhepera: Java Class for Khepera Robots
Posted 27 Sep 2005 at 18:30 UTC by steve
According to a freshmeat.net
announcement developers have released version 1.1 of the JKhepera
Java Class Library for Khepera mini robots. The library simplifies
serial communication between a host computer and the Khepera robot,
allowing easy manual or autonomous control of the robot. The library
provides motor control and sensor reading capabilities. JKhepera is Free
Software licensed under the GNU GPL. The K-Team Khepera robots are
popular small robots used in University and educational projects around
I don't know how much Kheperas cost now, but I remember writing the
European supplier (Postal mail - this was before I had internet access -
very early 90's, maybe?) and sadly learning that the cute little
robots cost around $1,000 apiece!
Anyone game for creating something similar? I'll volunteer the
electrical design, PCB layout, and mechanical design. I'll pay for
part of the development supplies. Someone else has to write the
firmware and PC-based software, though.
(Yes, I'm serious.)
expensive robots, posted 28 Sep 2005 at 14:39 UTC by steve »
Yep, I think they're still about $1k. If you look at the specs though
most robots with those capabilities seems to be that much are higher
unless you build them yourself. We did a story about some folks at
George Mason University who have design a sort of open hardware robot
with similar specs that can be put together for about $800 from
It looks like the big costs come from the need to use new parts instead
of the surplus that homebrew robot builder use. You can pick up a decent
gearmotor with encoders for a few bucks at a surplus place but try to
find one new for under $100. The George Mason folks used a cheap
gearmotor with an add-on encorder but the cost was still about $45 per
motor, I believe.
I proposed a robot contest in a recent Servo column in which the goal
would be to create a robot that met a set of common specifications for
the least amount money using only new, off-the-shelf parts. No surplus.
Right now, the George Mason folks would probably win first prize. The
Khepera might be second. Not sure about third - maybe Arrick Robotics'
Trilobot (about $2k)?.
If somebody could come up with one they could sell for, say $500, and
still make a profit. They could do a booming business with the academic and
e-puck robot, posted 11 Jul 2006 at 05:04 UTC by mondada »
At EPFL (Ecole Polytechnique Fédérale de Lausanne, where the Khepera was developed 14 years
ago) we have developed a new robot, with modern technology, which should answer to your
request. It is the e-puck robot (www.e-puck.org), it is fully open-hardware, has the size of the
Khepera but much more features and a much lower price. It includes sensors like a camera, 3
microphones, a 3D accelerometer, 8 proximity sensors. It can communicate with a serial port, a
IR remote control and a bluetooth connection. It has also a speaker, 8 leds around the body and
can move using very accurate stepper motors. The core is a dsPIC processor with 15 MIPS. The
price will depend on the manufacturer (being open hardware), but it seems that it could be
available for 700 swiss francs (570 USD).