[Coco] COCO Robot update.

[haywire666 at aol.com]

Thanks guys, Brendan, 


I always wanted to build one also. I suppose I have built a few but nothing that ever stayed together for too long. This one I want to survive long term so I'm taking things very slow this time and 
trying to build a more permanent kind of thing...
 
I want I suppose half show robot half research robot capable of some useful things, and to be fun for parties I suppose serving drinks on a tray and whatever.


I think I'm going for simple these will work for my purposes and not worth hassle for 10 or 20$ :


http://www.horrorseek.com/home/halloween/wolfstone/HalloweenTech/anebuy_BuyLEDEyes.html 


Off the shelf components rock! Thanks guys I think I found the solution for the eyes. Now I will be working on the robotic drive train or motorized base while I wait for the eye parts to 
arrive so I can finish the head. I also found a color organ kind of component for a mouth. Its like a graphic eq that lights up and goes up and down as the robot speaks. Thats already working.


I will send pics to this list when I have a little more progress to show.


Best regards, 


Steven


 



-----Original Message-----
From: Brendan Donahe <brendan at polylith.com>
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
Sent: Sat, Apr 7, 2012 8:47 am
Subject: Re: [Coco] COCO Robot update.


I assume here that pseudo-random and a somewhat long repeating pattern
would be ok.  In that case, how about an LFSR (Linear Feedback Shift
Register).  This could be accomplished with just a few TTL or CMOS logic
parts:

http://en.wikipedia.org/wiki/Linear_feedback_shift_register

Good luck with this project.  A CoCo robot is something I've always wanted
to build, as well, although I think my emphasis would be on some slightly
different abilities than you are focusing on for yours.  ;)

Cheers,
Brendan

On Sat, Apr 7, 2012 at 6:29 AM, Bruce W. Calkins
<brucewcalkins at charter.net>wrote:

>
> ----- Original Message ----- From: <haywire666 at aol.com>
>
>  I have some led eyes, does anyone know a simple circuit to ramdonly blink
>> them?
>>
>>
>> I should say I don't want a stanard blinking rate, I want the blinks to
>> vary. A turn signal flasher won't do.
>>
>>
>> If I have to I'll use the basic stamp... But seems there must be a
>> simpler way I'm not thinking of.
>>
>>
>> Steven
>>
>
> ==========================
>
> Some set of AND gates?  When any two actions happen a light blinks.
>
> Bruce W.
>
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