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1  Forum 2005-2010 (read only) / Interfacing / Re: Sharp IR Sensor with Arduino Board on: December 24, 2008, 03:58:36 am
I'd been wondering this aswell, thanks a lot for that help, Mike ;D
2  Forum 2005-2010 (read only) / Interfacing / Re: tracking motion on: December 24, 2008, 04:43:43 am
Apologies if my diagram looks somewhat like a breast-monster.  smiley-grin
3  Forum 2005-2010 (read only) / Interfacing / Re: tracking motion on: December 24, 2008, 04:21:38 am
I'd personally do this:

                  \        |       /
                    \      |     /
Sensors>       A    B   C
                    |            |
Dolls head>   |  ( o )   |
                     \          /

Where \ | / are the angles the sensors are facing and ( o ) is a motor/servo mounted underneath the dolls head, we could ask sensor A if it has noticed any change, if not, we ask B, and so on. If sensor C has detected motion, and we are not currently facing in Cs direction, we would turn accordingly, were B to detect motion next, we would be able to deduce that the subject is moving left, and we would turn the motor in that direction and PAST that point, however if within a short period of time A had not detected movement, we would quickly turn back to sensor Bs direction. The sensors would have to be mounted on the dolls body, and as such as many sensors as you want could be used to further increase the accuracy of the dolls facing direction.

tl;dr If a sensor detects motion, it turns to the defined angle of that sensor.

Hope it helps a little,

4  Forum 2005-2010 (read only) / Interfacing / Re: Servo issue on Bare Bones Board on: January 04, 2009, 01:19:12 am
Thanks, I'll have a look at your library, it should help.

I also tried the 'Software Servo' library, but couldn't quite get it working  :-?

Thanks for the help.

You'd never be able to power that many servos off of the on-board regulator anyway.

I'm using a TO-220 instead of the supplied TO-92, so it can handle a fair bit more, but still not heaps.
5  Forum 2005-2010 (read only) / Interfacing / Re: Servo issue on Bare Bones Board on: January 02, 2009, 07:34:29 pm
I realise that the library says pins 9 and 10 are the only pins compatible with it, yet the Bare Bones Board specifically says that the stack of pins there can be used to control servos as well as sensors. And yes, I've already consulted that page for help, and I realise what it says there, but that still doesn't change the fact that I was lead to believe that these pins could be used to control servos as well.

Also see the headers page for 3 pin male and female headers for connecting to servos or analog sensors.

If I'm not understanding something correctly here, then let me know, but don't think I haven't looked for an answer already. I'm just not sure which place to believe. I'm thinking that if I want to use these pins to control a servo, I'll have to do it without the servo library.
6  Forum 2005-2010 (read only) / Interfacing / Servo issue on Bare Bones Board on: January 01, 2009, 06:19:44 pm
Hi, I have a problem when running servos from my Bare Bones Board.
When I attach a servo to BBB 'A0' (pin 14), and change the pin number in the servo 'sweep' test program, nothing happens. However, when I hook it up to +5v, GND, and pin 9, it all works fine.

From what I gather, the A0-A5 stack of pins on the side is specifically for sensors and servos. I'm not doing anything fancy, just plugging hte servo directly to the pin(s) and running the test program.  :'(

Any help is greatly appreciated  smiley
7  Forum 2005-2010 (read only) / Interfacing / Re:  Mousey junkbot -  hardwired or Arduino on: December 24, 2008, 04:39:29 am
I agree with halley about the 'scavenging' part, although I can see how the end results will be more satisfying if it works really well. I'm going to have a go at making one of these soon so it'll be quite interesting to see how they compare. I think an Arduino (or a clone) would work fine for a small and relatively simple project like this, although be prepared to troubleshoot software AND hardware errors (instead of just short-circuits and polarity issues you'd find with the more 'standard' junkbot).
8  Forum 2005-2010 (read only) / Exhibition / Re: Arduino Helicopter Autopilot on: December 23, 2008, 02:14:23 am
Can't remember what brand it was, it doesn't have any decals and I got it from a relative (second hand), and they didn't still have the manual or anything. It's a pretty standard-type heli, nothing special, just the basics.

How much are the PCBs? If they aren't too pricey, I might just grab a few...  smiley
9  Forum 2005-2010 (read only) / Exhibition / Re: Arduino Helicopter Autopilot on: December 19, 2008, 11:33:43 pm
Looks good.
Now I only wish that I could fix the damage that my old heli took the last flight....

Nice idea you've got there, keep it up!  smiley
10  Forum 2005-2010 (read only) / Exhibition / Re: NOkia LCD & Joystick Shield for Arduino on: December 23, 2008, 02:16:53 am
Looks good, can't wait to get my hands on one of these...  smiley-wink
11  Forum 2005-2010 (read only) / Exhibition / Re: Rubberband Defender Robot on: December 23, 2008, 06:11:57 am
I quite like it. Seems quite effective...

I'll have to build one to guard my room smiley-wink
12  Forum 2005-2010 (read only) / Exhibition / Re: POV Waving Device on: December 23, 2008, 02:20:12 am
Looks really good, I can't wait to try this with my breadboard...
13  Forum 2005-2010 (read only) / Exhibition / Re: First project - animated Christmas tree on: December 19, 2008, 12:49:55 am
Very nice!
I like the scrolling sign down the bottom, really adds to the whole thing (not to say that the tree isn't impressive by itself!)

That's your first Arduino project?  :o
14  Forum 2005-2010 (read only) / News / Re: Cheap scope with LCD on: December 24, 2008, 12:27:22 am
I'm new to scopes, and this is just the sort of 'basic, entry-level' scope I've been looking for. I'm going to order one soon smiley-grin
15  Forum 2005-2010 (read only) / News / Re: Comparison of Ardunino, Make Controller, AVRISP on: December 24, 2008, 03:44:57 am
Thanks for the link, I found that particularly useful, especially since I'd never heard anything about the 'Make controller' before.  ;D
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