Alt-BEAM Archive
Message #06103
To: beam@sgiblab.sgi.com
From: Craig Maynard cybug@home.com
Date: Thu, 16 Sep 1999 08:59:26 -0600
Subject: [alt-beam] Re: Chloroplast SE
Hi Richard...
The link for the schematics and instructions on how to free-form your
own chloroplast ( without pcb ) is at
http://members.home.com/cybug/Chloro/chloro~1.htm
.
V+ and - are for the solar cells
M+ and - are for the motor connections
C+ and - are for the capacitor
R2 is a 100K resistor
R1 determines the hysterisis range ( 220K will dischare at about 6.2V
and stop at 5V, and higher values float this voltage higher and increase
the size of the hysterisis. ) The two closely spaced pins you refered
to are used in conjunction with the right R1 pad (3 pads total ) to hold
an optional trimmer potentiometer of 1Mohm ( replacing R1 ) which you
can use to vary the voltage level to whatever works best with your
application.
I have no doubts that it would support your larger solar panel, but
make sure that the motors do not draw more current that the MPSA12
darlington can handle. You may choose to have the darlington drive a
more appropriate part ( relay or power mosfet ) if your motors are too
powerful. Appropriate back-emf suppression techniques should also be
applied.
Hope this helps, Richard
Craig
Richard Piotter wrote:
>
> Do you have a link for the schematics/parts list for the chloroplast SE.
> i got the 2 PCBs in the mail. I forgot you were sending them and didn't
> realize what they were till I looked at them. NICE!!!
>
> It looks like 4 parts. I understand V (+) & (-) and M (+) & (-). I
> Assume C (+) & (-) are for the capacitor as well. There are 2 closely
> spaced pins underneath the R1 position. What are those. I heard it has
> a steady 5 volt supply for powering chips. is that what those pins are
> for? The values of the 4 (???) components would be helpful.
>
> Just curious, but can it handle a 9 volt 60 mA power supply? I have the
> 6x6 inch panel from All Electronics, and I'd like to make a robot using
> it. I need an SE to run a Bicore or a Unicore and two MAXON motors (the
> ones that MECI sold).
>
> I look forward to trying out this type of SE.
>
> Craig Maynard wrote:
> >
> > No problem, Jim... If anyone else wants one, just email me!
> >
> > Craig
> >
> > JVernonM@aol.com wrote:
> > >
> > > In a message dated 8/25/99 10:08:14 AM Eastern Daylight Time,
> > > richfile@rconnect.com writes:
> > >
> > > > I too would like to solarize a bicroe based robot. I've got now
> > > > expirience with solar powered bicore devices. I realy have no clue what
> > > > kind of capacitor is ideal, or if the bicore recieves power at all times
> > > > and only the motor uses the cap, or what??? I simply have never done
> > > > this before. if anyone has recomendations as to how the SE and Bicore
> > > > are connected, please, do tell!
> > > This is fairly simple and straight forward. To get LEDs to blink at night,
> > > hook a D1 power outlets to the Bicore power inputs. Hook your LEDs to the
> > > Bicore motor outputs and you are in bidnez. Use a 1F gold cap for about an
> > > hour of blinking. Use the HC chip. If you are running in the daylight, then
> > > substitute a PM1 for the D1. Hook it to your Master Bicore power leads. That
> > > would work for a 2 motor Master slave walker, but I'm not sure of the best
> > > configuration for 3 or more motor designs. That sounds like a question for
> > > the Wilfmiester. Don't forget those motor drivers.
> > > By the way, I just got 2 Chloroplast Solar Engine PCBs in the mail today.
> > > Sleek and black. I'm gonna try switching them out for the PM1, which I've
> > > always had trouble getting to run anything with more torque than a pager or
> > > Walkman motor. Adjustable trigger level and a uC reserve of 5 volts, I can't
> > > wait to start building. Thanks Craig!
> > > Jim
>
> --
>
> Richard Piotter
> richfile@rconnect.com
>
> The Richfiles Robotics & TI web page:
> http://richfiles.calc.org
>
> For the BEAM Robotics list:
> BEAM Robotics Tek FAQ
> http://people.ne.mediaone.net/bushbo/beam/FAQ.html
6104 Thu, 16 Sep 1999 11:15:43 -0500 [alt-beam] Re: power_smart_head fest beam@sgiblab.sgi.com Scott Burns At 06:12 PM 9/10/99 -0700, you wrote:
>Hello Scott,
>
>Tell us more: what components? which schematic? what motor? matched LDRs?
>
>best regards
>
> Wilf Rigter mailto:wilf.rigter@powertech.bc.ca
>
OK, I've described it in detail (including scope readings) at
http://www.designbyalgorithm.com/circuit.htm
> > -----Original Message-----
> > From: Scott Burns [SMTP:s-burns@uiuc.edu]
> > Sent: Friday, September 10, 1999 7:05 AM
> > To: beam@sgiblab.sgi.com
> > Subject: Re: power_smart_head fest
> >
> > Dear Wilf:
> >
> > The virtual beam workshop sounds great. I tried building the PSH and was
> > able to get the square waves to the motor to change duty cycle with
> > changes
> > in relative LDR illumination, but they were always in phase. The motor
> > never saw a voltage differential across it. I'm anxious to figure out what
> >
> > I did wrong.
> >
> > Regards, Scott
> >
> >
------------------------------------------
Prof. Scott A. Burns
Dept of General Engineering and Civil Engineering
University of Illinois at Urbana-Champaign
104 S. Mathews, Urbana, IL 61801
Phone 217/333-1618, FAX 217/244-5705
6105 Thu, 16 Sep 1999 12:47:22 -0400 [alt-beam] Logic analyzer alt-beam@egroups.com Mark Cowart I'm looking for free logic analyzer software to use on a PC, and a howto on
using the parallel port for the inputs.
thanks
Mark Cowart (912) 934-3319
PC Support Spec. IV
Computer
Services http://www.mgc.peachnet.edu/compserv/index.htm
Middle Georgia College
Cochran, GA 31014
6106 Thu, 16 Sep 1999 12:28:51 -0700 (PDT) [alt-beam] Re: non-beam but electronics related beam@sgiblab.sgi.com James Taylor Again sorry for the off topic post, but I will be
willing to sell my MPman F10 from http://www.mpman.com
80 dollars takes it, NIB, earphones where DOA though.
--- David Perry wrote:
> are you thinking what i think your thinking, stuff
> buying a $150 Rio MP3
> player? If you find anything out or build such a
> circuit please contact me!
> Sorry to clog up the list with this.
>
> David Perry
>
>
> -----Original Message-----
> From: Bumper314@aol.com
> To: beam@corp.sgi.com
> Date: Friday, 10 September 1999 1:40
> Subject: non-beam but electronics related
>
>
> >hello, i am wondering if anyone has worked with the
> mas3507d mp3 decoder or
> >and dac3550a digital to analgue converter?
> >
> >steve
>
>
===
Everything I say can mean one of two things...If something I say makes you mad....I meant it the other way.
James Taylor
URL: http://fly.to/springmeadows
__________________________________________________
Do You Yahoo!?
Bid and sell for free at http://auctions.yahoo.com
6107 Thu, 16 Sep 1999 13:15:34 -0700 [alt-beam] So...what did I miss? BEAM List Chiu-Yuan Fang After a lengthy out-of-town training course for my new job...I'm finally back.
I have to say, I'm very sorry to all the contest participants for leaving you
all hanging. Dennison, the vid will be up shortly. And judging will be very
brief...I hope.
I'm not going to respond to any e-mails so if you sent me a question in the last
3 weeks, please send it again. Thanks.
So what did I miss? A friend told me a new extreme machine episode about BEAM
aired yesterday on TLC. I checked the website and it should be rerun on
Saturday.
On a side note. I'm not going to be updating the news section on my web site
anymore. I just don't have the time. I really hope someone takes over the job.
--
Chiu-Yuan Fang
chiumanfu@home.com
ICQ=5614919
http://www.geocities.com/SouthBeach/6897/beam2.html
6108 Thu, 16 Sep 1999 18:17:10 EDT [alt-beam] Re: non-beam but electronics related beam@sgiblab.sgi.com Bumper314@aol.com In a message dated 9/16/99 12:13:22 AM Pacific Daylight Time,
davidperry@geocities.com writes:
> are you thinking what i think your thinking, stuff buying a $150 Rio MP3
> player? If you find anything out or build such a circuit please contact me!
> Sorry to clog up the list with this.
>
Well i have the schematics and all...just was looking for someone else who
has worked with them too...oh well
steve
6109 Thu, 16 Sep 1999 16:07:50 -0700 (PDT) [alt-beam] is beam dying? beam@sgiblab.sgi.com Evan Dudzik is beam dying? i mean, the two people with the best news sections quit
doing them, and ian hasnt updated forever... i mean, the messages on
the list seem to be less numerous, etc. half the stuff is people
wondering about how to make things that arent beam (i.e. mp3 players,
etc.) I hope that BEAM is not close to extinction! i havent been
doing much lately, mostly from lack of funds. oh well..
__________________________________________________
Do You Yahoo!?
Bid and sell for free at http://auctions.yahoo.com
6110 Fri, 17 Sep 1999 00:47:38 +0100 [alt-beam] Re: is beam dying? beam@sgiblab.sgi.com James G Watt In article <19990916230750.11028.rocketmail@web124.yahoomail.com>, Evan
Dudzik writes
>is beam dying?
I hope not because I just found out about it a few week ago.
I got some bits to make a simple microcore based walker but I'm having a
little trouble with it.
I've built myself a 4 neuron microcore on a breadboard (and a freeform
version) and I thought it was performing correctly. The microcore uses a
74hc14 and I'm using a 74als245 to drive my motors. It all appears to be
firing correctly except that as far as I can tell there's absolutely NO
feedback changing the behaviour of the microcore what so ever. I was
under the impression that the timing was supposed to vary depending on
the load on the motors? Did I misunderstand something because my circuit
appears to run as regular as a metronome no matter what load is attached
to it?
I built the thing following the instructions here:
http://www.xs4all.nl/~vsim/amiller/microcore.html
--
James G Watt
http://www.kinetic-arts.demon.co.uk
Part of the Video Arcade Game Collectors WebRing.
You are in a maze of twisty little passages, all alike.
6111 Fri, 17 Sep 1999 10:23:21 +1000 [alt-beam] Re: power_smart_head fest beam@sgiblab.sgi.com robmc@acay.com.au Scott, Wilf,
Should there be diodes in series with the LDRs?
Rob
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