RoboSavvy Forum

Many questions ...

2009-04-11T15:17:13+01:00

there were reports of Arduino serving as the bioloid board.
ensure the voltage regulator on the Arduino can handle up to 12V.
the only issue was the RX/TX have to be shorted and software has to be in place to ensure that they when TX is sending, RX is not reading and vice versa.

Statistics: Posted by limor — Sat Apr 11, 2009 3:17 pm

Many questions ...

2009-04-10T22:41:49+01:00

This would be easy (for given values of easy) to do using libbioloid ( http://braincell.cx/bioloid/dist/ ).

If you choose not to use libbioloid, then I suggest you still have a look around it to see how to declare interrupt handlers / drive timers / etc.

(disclaimer... I wrote most of libbioloid - so you may want to take my words with a pinch of salt).

Statistics: Posted by RandomMatt — Fri Apr 10, 2009 10:41 pm

Many questions ...

2009-04-10T09:17:54+01:00

Thx srobot !

I think I'm gonna use urbi to program my application because it's high level language easy to code that enables parallelism calculation. However I must confess I'd rather use an embedded solution. As urbi can't run on cm-5, urbi server is executed on a pc so one has to purchase a zigbee module to provide wireless communication, and it's that much expensive

So if anyone has informations about a futur multi task embedded os for bioloid let me know !

Statistics: Posted by XTinX — Fri Apr 10, 2009 9:17 am

Many questions ...

2009-04-10T02:54:33+01:00

XTinX wrote:
where can I find a I/O board to plug a sharp GP2Y0A02YK (ir sensor) in my bioloid ?

I know that Jon Hylands was selling I/O boards for the Bioloid, although I think he stopped selling in September 2008. Anyway, his boards are very good and it might be worth shooting him an email to find out.

http://huvrobotics.com/

Search the forums here to find instructions to build an I/O board.

Statistics: Posted by srobot — Fri Apr 10, 2009 2:54 am

Many questions ...

2009-04-06T15:06:49+01:00

Here's some details concerning my project :

the goal is to drive a bioloid car (via wireless connection) while computing the position (coordinates & angle) of the robot. The position is computed with speed data accumulated over time. In order to have a very precise position, the time elapsed between 2 speed measures has to be constant and very small (50-100 ms).

I programmed this application on lego nxt using NXTosek OS (based on rate monotonic task scheduling). So i had 2 tasks :

- a "recieve task" listening for servo commands and sending them to actuators
- a "speed acquisition task" measuring the instant speeds of wheels and computing position.

How can I perform the same application on a cm5 board ? I guess I should set an interruption every 50 or 100 ms to execute speed acquisition handler while the other task is executed in the main program. Am I right ? I don't have any robotis hardware yet but I would like to design the software architecture or at least, understand how my program should run.

Anybody help

EDIT: by the way, if anyone had a c file with interrupt exemples (declaration etc ...) please let me know !

Statistics: Posted by XTinX — Mon Apr 06, 2009 3:06 pm

Many questions ...

2009-04-06T15:18:22+01:00

Hi everyone,

I m going to purchase a bioloid beginner kit for little project and I had a few questions:

- what's the max range of the IR sensor ? what's the aperture angle of this sensor ?

- where can I find a I/O board to plug a sharp GP2Y0A02YK (ir sensor) in my bioloid ?

- can I program the cm5 using real time programmation with tasks and priorities such as in NXTosek (real time os for lego mindstorm) ?

- to have even better distance measures, I was wondering if it was possible to plug a laser rangefinder ?

Thx for your answers

Statistics: Posted by XTinX — Sun Apr 05, 2009 5:47 pm