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1  Topics / Robotics / Re: Robot-based website on: January 30, 2013, 11:24:01 pm
Looks like an interesting site and project, will be sure to have a proper read when I have the time.

And hello from a fellow Melbournite  smiley
2  Using Arduino / General Electronics / Re: motor shield on: November 21, 2011, 02:05:34 am
I'm a big fan of this controller:

It doesn't support servo control but that can easily be done from Arduino's PWM pins.
3  Topics / Robotics / Re: Someone please check this out and tell me what can I do to perfect it. on: November 11, 2011, 01:24:40 am
I've built something similar. I did some testing and the US sensor will return range readings on any object within a 20 degree (from memory) "cone". It returns the distance to the closest object within the 20 degrees.

I've done a small amount of experimenting with focusing the range by putting cardboard around the sensor, it seemed to work okay but I need to do more testing.

If you want any help on specific issues PM and I'll help if I can smiley
4  Topics / Robotics / Re: Help me choose a tracked or 4WD robot platform on: October 11, 2011, 04:24:32 am
I've been working on a Rover 5 platform that I go from There are a few different variations, but the '5' has 4 motors, each with it's own quadrature encoder, and is tracked. Since it does have independent 4-wheel drive, you could use mecanum wheels for an extra level of maneuverability.

Thanks for the suggestion! I like that platform, but I'm a bit concerned that it would be too small (like the DFRobotShop Rover). The Chumby takes up a lot of real estate.

But I could perhaps mount two decks on top of the robot, a bottom deck for the Arduino, motor controller etc. and a top deck for the Chumby and a camera.

Hey mate,

I've got the Rover 5 and I'm pretty happy with it, here's my setup:

If you put a larger panel on the base you'd have a fair bit of space to play with.
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