Chip with simple program for Toy

[Dimitrij Klingbeil]

"Chris Roberts" <ihatespam@spamsucks.com> wrote in message
news:8dgob.9346$3o3.8044@news01.roc.ny...

traces on the back to really know whats goin on but I figured u gurus
could
recognize certain things right off the bat.

Don't rely on that. Prom the pic, it seeme that the diodes that are most
likely to form the PSU - D3 and D4 are identical or at least very similar.
It is not a full-wave rectifier as such one would need 4 diodes, but it is
also very unlikely that a half-wave rectifier would need 2 diodes (unless
one is a zener). As both D3 and D4 do not look like being zeners, but the
diode partially behind the big cap does, it could well be that the device
employs more than one low voltage. Could you please also post a photo of the
other side of the device, a view of the traces might be a great help.

Dimitrij

 

[John Popelish]

Chris Roberts wrote:

Just looking for a little guidance with converting this floodlight motion
detector to battery power. (Regent MS35)

I have a fair amount of experience with electronics but none with trying to
reverse engineer a circuit and was just looking for a little direction. I
attached a pic of what the circuit board looks like. I realize you need the
traces on the back to really know whats goin on but I figured u gurus could
recognize certain things right off the bat.

From what I have read this circuit powers everything with 24vdc. So I'm
looking at the cap and diodes at top right and that appears to me to be the
power supply portion to rectify, filter, etc down to 24vdc (supposedly.) So
would I just intelligently probe the correct part of that circuit to look
for 24vdc. And if I find it there just cut that portion of the circuit out
essentially and connect in my own 24v power supply?

(I'm down with the fact that ac voltage and the likes is unsafe etc... I'm
a bit beyond that....)

Thanks,

Chris

[Image]

As simple as it is, with only a quad opamp (the integrated circuit)
and single sided, you should be able to draw out almost all of the
circuit. Once you have that schematic, bring it back and we can help
you find the errors and figure out how it works.

--
John Popelish

 

[Joe]

"Chris Roberts" <ihatespam@spamsucks.com> wrote in message
news:8dgob.9346$3o3.8044@news01.roc.ny...

Just looking for a little guidance with converting this floodlight motion
detector to battery power. (Regent MS35)

I have a fair amount of experience with electronics but none with trying
to
reverse engineer a circuit and was just looking for a little direction. I
attached a pic of what the circuit board looks like. I realize you need
the
traces on the back to really know whats goin on but I figured u gurus
could
recognize certain things right off the bat.

From what I have read this circuit powers everything with 24vdc. So I'm
looking at the cap and diodes at top right and that appears to me to be
the
power supply portion to rectify, filter, etc down to 24vdc (supposedly.)
So
would I just intelligently probe the correct part of that circuit to look
for 24vdc. And if I find it there just cut that portion of the circuit
out
essentially and connect in my own 24v power supply?

(I'm down with the fact that ac voltage and the likes is unsafe etc...
I'm
a bit beyond that....)

Thanks,

Chris

Chris,

check out the following site:

http://www.jesseshuntingpage.com/homebrew-cams.html

You will probably get some ideas if you click on the link for Regent MS20. I
don't see one for the Regent MS35 but he shows you what to cut on the MS20
and how to run it on 5V to 12V also.

hth,
Joe

 

[Keith R. Williams]

In article <Tm1ob.19$Fv5.10@newssvr24.news.prodigy.com>,
LGarth@Tantalus.net says...

"Keith R. Williams" <krw@attglobal.net> wrote in message
news:MPG.1a0a53fe7be38b8998a807@enews.newsguy.com...
In article <IVWnb.16$Ai7.10@newssvr24.news.prodigy.com>,
LGarth@Tantalus.net says...

"Keith R. Williams" <krw@attglobal.net> wrote in message
news:MPG.1a09f6d1817fcaf6989ac1@enews.newsguy.com...
In article <yOVnb.518$m57.123@newssvr23.news.prodigy.com>,
LGarth@Tantalus.net says...

I found out real quick that -15 degree air is not to be breathed
without
a muffler. Man, *that* hurt!

-15 degrees! That's *warm*. Sheesh I don't think it got much above
that here in January/February this year. A couple of hours shoveling
snow at -15 degrees is quite invigorating. ;-)


I did that for my sister there in Maine but only after putting a
muffler around my face. Then the plow came by any filled it
up again!

Mufflers are for sissies! Seriously, when it's *cold* it's
rather nice here. I simply hate it when it's 30ish. It's always
wet and gloomy. When it's cold (<0F) it's usually sunny and dry.
It's the dry cold, ya' know. ;-)

One expects plows to fill one's driveway. I'd just cleaned my
driveway out last year and was about to jump in the shower when I
heard the plow coming through (again). I looked out and the kind
driver went around my driveway and pushed it up on the other
side. Over the years I've found they do that, when possible, to
clean driveways.

OTOH, I just spent $1300 on snow tires for my wife's and son's
cars. Me? I don't need no steenkin' snow tires. I have a 4WD
off-road truck. I can go anywhere, even off the road! ...and if
I'm off-road, I *meant* to be there! That's my story and I
sticking to it! ;-)

All I can tell you is that my nose moisture froze on one inhale and
the ice crystals made my nose bleed lightly.

That's usually a symptom of the lack of moisture in the air. It
is *dry* when it's cold. My skin crawls all winter and my legs
bleed. When I rip my back open with my letter-opener I know it's
dry.

The muffler fixed that
quite well. Recall that it rarely freezes more than 5 days a year here
so I am unacclimated.

We have about that many days above 90F per year. In fact only
three recorded over 100F (two in '95).

Similarly, mountain folks feel envigorated
by the higher O2 at 300 feet here until the heat keels 'em over.

I hear that! My house is between 58F (night) and 65F (when we're
home and awake) half the year (October to May). They're
*supposed* to be saving money at work with limited heating, but
my office runs 78F to 85F. ...way too hot! I have a fan running
even during the winter.

We're supposed to have a massive heat-wave this weekend. 60's
tomorrow though Sunday! Cool! Maybe I can clean the gutters (I
think my Maple tree is done shedding that high up) and finish the
siding. ;-|

--
Keith

 

[Keith R. Williams]

In article <o181qv89acjrrkrshheiuh0tjt07l5jppv@4ax.com>,
jjlarkin@highlandSNIPtechTHISnologyPLEASE.com says...

On Wed, 29 Oct 2003 22:50:17 -0500, Keith R. Williams
krw@attglobal.net> wrote:


Please be happy. SF is a nice place to visit, but no I have no
interest in living there. The one business trip I had in SF
(most were in Silly valley) I only wish my wife could have been
with me (right in the financial district-top of the cable cars).


Downtown is the worst part of the city. We rarely go there. The
western end - GG park, the Great Highway, Land's End, the Presidio are
quiet and beautiful.

Been there. Nice parks, but there are nice parks everywhere.
I'm not sure what you mean by "downtown". The "financial
district"? I thought it was quite nice, for a city. My reason
for being there was a M$ WinHEC at Moscone center. 6000
engineers bowing down to BillyG's feet! was certainly scarry
<shudder>. However I liked the area.

I carry baggies in my back pocket during late
summer so I can pick blackberries when I see them.

Well, I live on Blackberry Road, and it wasn't named after the
PDA. ;-) Though the birds get most of 'em.

If all this place
was just downtown and Fisherman's Wharf, I'd be far away.

Nice place to visit... Thanks, I'll not compete for your turf.
;-)

--
Keith

 

[Keith R. Williams]

In article <kkh2qvojevvlovg58m4e3p2vb5ip1unttc@4ax.com>,
jjlarkin@highlandSNIPtechTHISnologyPLEASE.com says...

On 30 Oct 2003 16:47:26 GMT, dbowey@aol.com (Dbowey) wrote:



And, as I quickly learned after being an idiot just once, when a young lady
asks " do you have the time?" she ain't asking where the clocks hands are
pointing.


She must have been a horologist.

Hmm, interested in antique movements? Maybe that's why they were
being so nice to me. ;-)

I did understand that they had time, if I had money.
....actually, my work isn't that much different, though is blessed
by the legal system. ;-)

--
Keith

 

[Keith R. Williams]

In article <vq2i8b3uc0jibd@corp.supernews.com>,
fandaDEATH2SPAMMERS@catskill.net says...

"John Larkin" <jjlarkin@highlandSNIPtechTHISnologyPLEASE.com> wrote in
message news:kkh2qvojevvlovg58m4e3p2vb5ip1unttc@4ax.com...
On 30 Oct 2003 16:47:26 GMT, dbowey@aol.com (Dbowey) wrote:



And, as I quickly learned after being an idiot just once, when a young
lady
asks " do you have the time?" she ain't asking where the clocks hands are
pointing.


She must have been a horologist.

John

And what makes you so sure that "she" was a she?

No! Tell me they wouldn't lie! EEww!


--
Holly came from Miami, Fla
Hitchhiked her way across the USA.
Plucked her eyebrows on the way
Shaved her leg and then he was she - she said:

Hey Babe, take a walk on the wild side,
Said hey honey, take a walk on the wild side.
....

;-)

--
Keith

 

[Keith R. Williams]

In article <1nu2qvcb695u1v1ah2pidomhqtq8saipo1@4ax.com>,
jjlarkin@highSNIPlandTHIStechPLEASEnology.com says...

On Thu, 30 Oct 2003 12:23:21 -0800, "Baphomet"
fandaDEATH2SPAMMERS@catskill.net> wrote:


"John Larkin" <jjlarkin@highlandSNIPtechTHISnologyPLEASE.com> wrote in
message news:kkh2qvojevvlovg58m4e3p2vb5ip1unttc@4ax.com...
On 30 Oct 2003 16:47:26 GMT, dbowey@aol.com (Dbowey) wrote:



And, as I quickly learned after being an idiot just once, when a young
lady
asks " do you have the time?" she ain't asking where the clocks hands are
pointing.


She must have been a horologist.

John

And what makes you so sure that "she" was a she?


I never understood the appeal of prostitution. I mean, how can you be
sure she actually loves you?

....takes your money without a lawyer?

--
Keith

 

[John Popelish]

Chris Roberts wrote:

I appreciate the very fast response already. Here is a pic of the reverse
(I actually took that at the same time but forgot to post.) I will be
working on the circuit tonight and get back to you on that. Any trick to it
or just lots of flipping and patience?

It may help if you flip the trace picture and lay that beside the
board to help you visualize what hooks to what. Just start drawing
what connects to what. When the picture gets too messy, redraw that
part of the schematic, organizing it as well as you can. By the time
you have recopied it three or four times, you will have the schematic
pretty well internalized, and you are ready to put it into some
standard form (positive at the top, negative at the bottom, signals
generally going left to right. It seems like drudgery, but it helps
you think about the functions you are drawing.

--
John Popelish

 

[Lord Garth]

"Keith R. Williams" <krw@attglobal.net> wrote in message
news:MPG.1a0ba68ef518a1d798a818@enews.newsguy.com...

In article <vq2i8b3uc0jibd@corp.supernews.com>,
fandaDEATH2SPAMMERS@catskill.net says...

"John Larkin" <jjlarkin@highlandSNIPtechTHISnologyPLEASE.com> wrote in
message news:kkh2qvojevvlovg58m4e3p2vb5ip1unttc@4ax.com...
On 30 Oct 2003 16:47:26 GMT, dbowey@aol.com (Dbowey) wrote:



And, as I quickly learned after being an idiot just once, when a
young
lady
asks " do you have the time?" she ain't asking where the clocks hands
are
pointing.


She must have been a horologist.

John

And what makes you so sure that "she" was a she?

No! Tell me they wouldn't lie! EEww!


--
Holly came from Miami, Fla
Hitchhiked her way across the USA.
Plucked her eyebrows on the way
Shaved her leg and then he was she - she said:

Hey Babe, take a walk on the wild side,
Said hey honey, take a walk on the wild side.

Lou Reed
Velvet Underground...
I like the rythm in "Sweet Jane"...

 

[Lord Garth]

"Keith R. Williams" <krw@attglobal.net> wrote in message
news:MPG.1a0ba2141028e97798a815@enews.newsguy.com...

I hear that! My house is between 58F (night) and 65F (when we're
home and awake) half the year (October to May). They're
*supposed* to be saving money at work with limited heating, but
my office runs 78F to 85F. ...way too hot! I have a fan running
even during the winter.

We're supposed to have a massive heat-wave this weekend. 60's
tomorrow though Sunday! Cool! Maybe I can clean the gutters (I
think my Maple tree is done shedding that high up) and finish the
siding. ;-|

Where do you live? That sounds very comfortable...

August through September + or - a month or two are the worst.
High temps and high humidity. Usually no wind either.

 

[Keith R. Williams]

In article <IPnob.176$2P5.67399779@newssvr11.news.prodigy.com>,
LGarth@Tantalus.net says...

"Keith R. Williams" <krw@attglobal.net> wrote in message
news:MPG.1a0ba2141028e97798a815@enews.newsguy.com...

I hear that! My house is between 58F (night) and 65F (when we're
home and awake) half the year (October to May). They're
*supposed* to be saving money at work with limited heating, but
my office runs 78F to 85F. ...way too hot! I have a fan running
even during the winter.

We're supposed to have a massive heat-wave this weekend. 60's
tomorrow though Sunday! Cool! Maybe I can clean the gutters (I
think my Maple tree is done shedding that high up) and finish the
siding. ;-|

Where do you live? That sounds very comfortable...

North-west Vermont. Nice summers, *long* gray winters.

--
Keith

 

[Lord Garth]

"Keith R. Williams" <krw@attglobal.net> wrote in message
news:MPG.1a0c37bba9d065a1989ac2@enews.newsguy.com...

In article <IPnob.176$2P5.67399779@newssvr11.news.prodigy.com>,
LGarth@Tantalus.net says...

"Keith R. Williams" <krw@attglobal.net> wrote in message
news:MPG.1a0ba2141028e97798a815@enews.newsguy.com...

I hear that! My house is between 58F (night) and 65F (when we're
home and awake) half the year (October to May). They're
*supposed* to be saving money at work with limited heating, but
my office runs 78F to 85F. ...way too hot! I have a fan running
even during the winter.

We're supposed to have a massive heat-wave this weekend. 60's
tomorrow though Sunday! Cool! Maybe I can clean the gutters (I
think my Maple tree is done shedding that high up) and finish the
siding. ;-|

Where do you live? That sounds very comfortable...

North-west Vermont. Nice summers, *long* gray winters.

I've never been there but I'm supposing it's similar to Maine.

--
Keith

 

[Keith R. Williams]

In article <qqvob.261$yw4.89@newssvr22.news.prodigy.com>,
LGarth@Tantalus.net says...

"Keith R. Williams" <krw@attglobal.net> wrote in message
news:MPG.1a0c37bba9d065a1989ac2@enews.newsguy.com...
In article <IPnob.176$2P5.67399779@newssvr11.news.prodigy.com>,
LGarth@Tantalus.net says...

"Keith R. Williams" <krw@attglobal.net> wrote in message
news:MPG.1a0ba2141028e97798a815@enews.newsguy.com...

I hear that! My house is between 58F (night) and 65F (when we're
home and awake) half the year (October to May). They're
*supposed* to be saving money at work with limited heating, but
my office runs 78F to 85F. ...way too hot! I have a fan running
even during the winter.

We're supposed to have a massive heat-wave this weekend. 60's
tomorrow though Sunday! Cool! Maybe I can clean the gutters (I
think my Maple tree is done shedding that high up) and finish the
siding. ;-|

Where do you live? That sounds very comfortable...

North-west Vermont. Nice summers, *long* gray winters.

I've never been there but I'm supposing it's similar to Maine.

Well, sorta I guess. Our weather is significantly different than
the coastal parts (no one lives anywhere else ;-) of Maine
though. Indeed our weather is different than 50mi either side.

BTW, the aurora was some cool stuff last night. It was horizon
to horizon, and much red. I heard the whole sky turned blood-red
about 11:30. Clouds rolled in at sun-down tonight. Drat!

--
Keith

 

[Lord Garth]

"Keith R. Williams" <krw@attglobal.net> wrote in message
news:MPG.1a0cfa3f88fb397798a823@enews.newsguy.com...

BTW, the aurora was some cool stuff last night. It was horizon
to horizon, and much red. I heard the whole sky turned blood-red
about 11:30. Clouds rolled in at sun-down tonight. Drat!

That is real cool! I actually saw a faint aurora here in Dallas when
I was out watching the Persieds. very faint, I had to go check the
space weather report to be sure that I saw what I think I saw. I guess
that was about 3 years ago now. Still at this lattitude it is very rare.

 

[Fred Abse]

On Thu, 30 Oct 2003 09:13:48 -0800, John Larkin wrote:

On 30 Oct 2003 16:47:26 GMT, dbowey@aol.com (Dbowey) wrote:



And, as I quickly learned after being an idiot just once, when a young lady
asks " do you have the time?" she ain't asking where the clocks hands are
pointing.


She must have been a horologist.

Or writing a prosthesis.

--
Then there's duct tape ...
(Garrison Keillor)
nofr@sbhevre.pbzchyvax.pb.hx

 

[Dimitrij Klingbeil]

"Chris Roberts" <ihatespam@spamsucks.com> wrote in message
news:rPhob.9355$%w3.11@news01.roc.ny...

I appreciate the very fast response already. Here is a pic of the reverse
(I actually took that at the same time but forgot to post.) I will be
working on the circuit tonight and get back to you on that. Any trick to
it
or just lots of flipping and patience?

Again thank you very much for your assistance. Working on this will
really
help my understanding and confidence of electronic circuits and design I
feel. Plus the end result will make some of my fun projects possible : )

Chris Roberts

Sorry for the misinformation in my first response, mea culpa. I have just
looked at the 2 pictures after half-transparently layering the traces
picture over the top side one to see both at once. The rectifier is a
full-bridge one, the diodes D1, D3, D4 and D(2?, number not visible on
picture) are used in a non-standard full-bridge configuration where D1 and
D(2?) seem to be Zeners. This rectifier powers the big black cap to which
everything else is connected. It is the only low voltage source. You should
measure the voltage across the cap and use a low voltage supply (battery?)
with this spec. When using such a voltage source, remove the 4 diodes (R1,
R(2?), R3, R4), the long red capacitor, the resistor in parallel to it
(small, almost below the cap) and the large resistor standing on its side
between P3 and the PSU cap before connecting the low voltage source. The
connection with the white wire will not be used any longer, the other two
connections (P1, P3) go to the relay contacts and can be used for whatever
you need the relay for. The low voltage source should be connected in
parallel to (or instead of, your choice) the PSU cap (big black one).
Respect polarity! The schematic below illustrates how the power supply part
works:

P1 P3 P2?
| | |
| R__ C | |
x----|__|--||---x |
| | |
| relay_contact| |
x-----o/ o------x |
| |
| R__ R__ D2? _ _ D1 |
x--|__|--x--|__|--x--|>-|--x---|-<|--x
| C | | | |
'--||----' '--|<|----x---|>|--'
D4 || D3
.---''---.
| +C - |
x---||---x
| |
|+ -|
to LV electronics

I hope this helps,

Dimitrij

 

[Keith R. Williams]

In article <Q6Job.304$5C2.182995015@newssvr11.news.prodigy.com>,
LGarth@Tantalus.net says...

"Keith R. Williams" <krw@attglobal.net> wrote in message
news:MPG.1a0cfa3f88fb397798a823@enews.newsguy.com...

BTW, the aurora was some cool stuff last night. It was horizon
to horizon, and much red. I heard the whole sky turned blood-red
about 11:30. Clouds rolled in at sun-down tonight. Drat!


That is real cool! I actually saw a faint aurora here in Dallas when
I was out watching the Persieds. very faint, I had to go check the
space weather report to be sure that I saw what I think I saw. I guess
that was about 3 years ago now. Still at this lattitude it is very rare.

The news reported that the aurora was visible as far south as TX
Thursday night. Ol' Sol threw us a few big fast balls last week!
Good thing the Yankees are playing golf. ;-)

--
Keith

 

[Baphomet]

"Keith R. Williams" <krw@attglobal.net> wrote in message
news:MPG.1a0ba68ef518a1d798a818@enews.newsguy.com...

In article <vq2i8b3uc0jibd@corp.supernews.com>,
fandaDEATH2SPAMMERS@catskill.net says...

"John Larkin" <jjlarkin@highlandSNIPtechTHISnologyPLEASE.com> wrote in
message news:kkh2qvojevvlovg58m4e3p2vb5ip1unttc@4ax.com...
On 30 Oct 2003 16:47:26 GMT, dbowey@aol.com (Dbowey) wrote:



And, as I quickly learned after being an idiot just once, when a
young
lady
asks " do you have the time?" she ain't asking where the clocks hands
are
pointing.


She must have been a horologist.

John

And what makes you so sure that "she" was a she?

No! Tell me they wouldn't lie! EEww!


--
Holly came from Miami, Fla
Hitchhiked her way across the USA.
Plucked her eyebrows on the way
Shaved her leg and then he was she - she said:

Hey Babe, take a walk on the wild side,
Said hey honey, take a walk on the wild side.
...

;-)

--
Keith

Requires RealOne Player and fast internet connection and speakers cranked to
the max!
http://www.globecorp.org/sci.electronics.basics/WalkOnTheWildSide.rm ;-)

 

[Hal Murray]

I am working on some project that works like the Jeopardy Game. What happens
is, there are three teams, with buttons infront of them, and on each team's
desk is a light bulb.

Anyone who can give me an idea of how to do this? I know how to work if it
were only two teams ...

Two suggestions...

If you can do it for two, then start with AxB, BxC, and AxC. Then feed
the results of that to another layer of the same logic. That should
give you a simple result.

I'd do it with silicon rather than relays. I's use a PIC or AVR, and
do it in software. First run each input signal through a pair of FFs
to avoid metastability. (That's probably included in the PIC/AVR front
end.) Then in software, spin until at least one bit comes on. If
there is only one, your job is done. If two or three, then you have
more work to do.

One approach is to change the rules of the game. Say everybody gets
an extra $100 in the case of a tie. (Or only the teams that tied.)

Or you could run a counter in the background, and use the counter to
decide ties. Say divide the counter by 2 or 3 and use the remainder
to decide.

--
The suespammers.org mail server is located in California. So are all my
other mailboxes. Please do not send unsolicited bulk e-mail or unsolicited
commercial e-mail to my suespammers.org address or any of my other addresses.
These are my opinions, not necessarily my employer's. I hate spam.