Let's Make Robots!

Any propellor you want, as long as it's black

Today, on the IRC channel, 6677 posted this link:


where Parallax has open-sourced the Verilog code for their propellor chip.  This could be very interesting.

Linux: no /dev/ttyUSB0 device created when plugging picaxe28 board with picaxe27 cable


I'm playing with the "start here" robot kit and having trouble. I'm expecting the device /dev/ttyUSB0 to appear when I plug the picaxe 27 cable on the picaxe 28 board. Nothing appears. I have tried the 2 first solutions in the picaxe manual and I am not going to recompile the kernel, as suggested in solution 3. (using my working computer here).

I'm currently running Linux Mint 17 64 bit, based on Ubuntu 14.04 LTS. I have admin rights.

I am using linAxepad 1.5.0.

Help with an uncommon controler board

Since the last kid code workshop I participate, I have one kid that send me email questions on programming.

He is 11yo, a little specific as he's highly gifted (don't know the proper english word) and questions are always interesting ;)

Nothing for LMR at that point.  But this week end, I was invited by the parents and discovered that he wanted also start some robotics.

Looking for a custom built inspection robot

Hello to all the community,

I'm looking for a micro TIR (tactical inspection robot) either tracked or wheeled but tall about 1,7 cm , wifi controlled by pc or android tablet and with cctv camera.

Flash Memory of Arduino Uno


Sketch uses 13,308 bytes (41%) of program storage space. Maximum is 32,256 bytes.

Global variables use 2,082 bytes (101%) of dynamic memory, leaving -34 bytes for local variables. Maximum is 2,048 bytes.

processing.app.debug.RunnerException: Not enough memory; see http://www.arduino.cc/en/Guide/Troubleshooting#size for tips on reducing your footprint.

WANTED: Arduino Mega Or Clone

Does anyone have an arduino mega or a mega clone that I could buy or trade parts for, or do you know where I can find one for cheap.





Homemade Artificial Muscles from Nylon Fishing Line

There was an exciting discovery that hit the news last month -- researchers at the University of Texas learned that appropriately coiled nylon monofilament line could be used to make heat-activated artificial muscles. Here's an article on it: http://io9.com/scientists-just-created-some-of-the-most-powerful-muscl-1526957560  I've had some success duplicating their work as a hobbyist -- in particular, I've gotten one of these muscles to lift a suspended ferrite core about a centimeter, then relax again.

Is my design stable?

I made a design for a robot in sketchup. I made it like something that is two wheeled and without any castor wheel.

Wanted something like this : http://www.pololu.com/product/189

I have a little concept on mechanics so don't know weather the design will be stable or not. Any suggestions on making it any better?


Wanted: 12V Batteries

Does anyone know where I can get some 12V rechargeble batteries for robots, I wanted about 2 or 3 for a robot that I plan to build. I would prefer them to be LiPo over the big bulky black ones but I will take what I can get.


I will post what I have later on today when I get home.