Re: Re: ir transmitter some success

["Frank Mc Alinden" <armagh@xxxxxxx>]

Andy
        Thats correct .  I my
previous post i stated +5v switching this was
in regard to the rear jack ir socket. Getting confused again sorry .
----- Original Message -----
From: "andy_powell_is" <ukha@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Sunday, June 02, 2002 10:11 PM
Subject: [ukha_d] Re: ir transmitter some success


> Frank, Ian,
>
> So that http://www.automated.it/homevision/HVIR2.jpg
circuit is
> correct then? and I use the Homevison A ports to ground the zones
i
> do NOT want a signal sent to?
>
> Andy
>
>
> --- In ukha_d@y..., "Frank Mc Alinden" <armagh@b...>
wrote:
> > Andy
> >         Whats happening
is that with +5v on the first transistor
> thru
> > resistor? there is enough current  going into the next
transsitor
> to drive
> > it on. Also i believe HV sends a +5v switching signal. Port A
> outputs do
> > switch to ground (open collector).
> >
> > Frank
> > ----- Original Message -----
> > From: "andy_powell_is" <ukha@b...>
> > To: <ukha_d@y...>
> > Sent: Sunday, June 02, 2002 9:57 PM
> > Subject: [ukha_d] Re: ir transmitter some success
> >
> >
> > >
> > > Frank,
> > >
> > > No, those seems to be very different from the
original...
> > >
> > > If you look at http://www.automated.it/homevision/HVIR2.jpg
> > >
> > >
> > > that's what I'm doing, tho the Hovevision port ground isn't
in the
> > > circuit... I've just tested on my circuit and if I put a
ground
> > > connectoin in where it is on the diagram it fixes the
probelm...
> so
> > > the question is does Port A go to ground? is this safe to
do?
> > >
> > > Andy
> > >
> > >
> > >
> > > --- In ukha_d@y..., "Frank Mc Alinden"
<armagh@b...> wrote:
> > > > Hi Andy
> > >
>             
The other guys must be busy,so i,ll have a go, Are
> you
> > > using
> > > > one of the circuits  Ian B has on his site .
If  so which one
> > > > Frank mc
> > > > ----- Original Message -----
> > > > From: "andy_powell_is" <ukha@b...>
> > > > To: <ukha_d@y...>
> > > > Sent: Sunday, June 02, 2002 9:18 PM
> > > > Subject: [ukha_d] Re: ir transmitter some success
> > > >
> > > >
> > > > >
> > > > > Frank Ian, Ian,
> > > > >
> > > > > I've actually found a problem :(
> > > > >
> > > > > When +5v is applied to the base of the first
transistor, even
> if
> > > the
> > > > > collector is not connected, the 2nd transistor is
supplying
> > > current
> > > > > to the LEDs... I don't understand that. didn't
think it should
> > > > > happen :(
> > > > >
> > > > > any ideas
> > > > >
> > > > > Andy
> > > > >
> > > > >
> > > > > --- In ukha_d@y..., "Frank Mc Alinden"
<armagh@b...> wrote:
> > > > > > Hi Andy
> > > > >
>            
Isnt it  brill when things go right .Your doing
> > > great.
> > > > > Good idea
> > > > > > about the Basic Stamp. I spent all day
yesterday
> frustrated .
> > > You
> > > > > wouldnt
> > > > > > learn much if everything went right ,its when
it goes wrong
> > > thats
> > > > > when you
> > > > > > learn. Did you post your photos on Marks
Website ? if so
> how?
> > > > > > Good Luck
> > > > > >
> > > > > > Frank Mc
> > > > > > ----- Original Message -----
> > > > > > From: "andy_powell_is"
<ukha@b...>
> > > > > > To: <ukha_d@y...>
> > > > > > Sent: Sunday, June 02, 2002 7:18 PM
> > > > > > Subject: [ukha_d] Re: ir transmitter some
success
> > > > > >
> > > > > >
> > > > > > > Good stuff Frank... at the moment I am
just using this to
> > > learn,
> > > > > in
> > > > > > > the end I'll probably end up using one
of the designs
> from you
> > > > > > > experts...
> > > > > > >
> > > > > > > I've had a little brainwave here too...
before connecting
> to
> > > > > > > Homevision I'm actually going to
sacrifice a basic stamp..
> > > (well
> > > > > > > sacfrifice is'tn the right word as it
SHOULD be ok
> > > afterwards)..
> > > > > > >
> > > > > > > The Basic stamp can cope with 30ma max
per pin and 60ma
> per 8
> > > > > pins..
> > > > > > > which means if i create a fake
homevision using the basic
> > > stamp I
> > > > > can
> > > > > > > certainly check on the current draw
before the final
> > > connection..
> > > > > > >
> > > > > > > Obviously this is the final test before
connecting to
> > > homevision..
> > > > > > > before all that I need to take some
measurements.... but I
> > > have
> > > > > > > transferred the first bit from 
breadboard to
> > > stripboard... :D :D
> > > > > > >
> > > > > > > and it works!! :D .. I'm just using this
one really as
> > > > > layout...and
> > > > > > > testing, I need to compress  it
really...
> > > > > > >
> > > > > > > I also think I have got it down to about
512ma total of 8
> X 9
> > > > > leds, i
> > > > > > > think by chance I managed to get some
sensitive ir emitter
> > > leds I
> > > > > > > need to double check but I think I can
get away with
> 600ohm
> > > > > (possibly
> > > > > > > more as the emitters will be right
beside the internal IR
> > > > > receiver of
> > > > > > > any kit) resistors for them and the
visible leds have 3.9k
> > > > > resistors
> > > > > > > and are still fairly bright... (again
all by chance)
> > > > > > >
> > > > > > > Part numbers for farnell are:
> > > > > > >
> > > > > > > 178301 Ir Emitter
> > > > > > >
> > > > > > > (farnell datasheet
> > > http://www.farnell.com/datasheets/5344.pdf
)
> > > > > > >
> > > > > > > 3013900 yellow led
> > > > > > >
> > > > > > > (no datasheet at farnell but it is at
www.marl.co.uk  marl
> > > part no
> > > > > > > 352-582-20 )
> > > > > > >
> > > > > > > Andy
> > > > > > >
> > > > > > >
> > > > > > > --- In ukha_d@y..., "Frank Mc
Alinden" <armagh@b...>
> wrote:
> > > > > > > > Hi Andy , Ian + Ian
> > > > > > >
>                            
Had some success today with
> the
> > > 8
> > > > > zone
> > > > > > > ir controller . I decided to bypass the
opto connected to
> > > > > incoming ir
> > > > > > > signal from Hv to confirm my suspicions.
Tried it again
> and it
> > > > > worked
> > > > > > > but only with two ir leds inserted in
the Zone Splitter .
> > > Looked
> > > > > at
> > > > > > > my schematic and realised it was
slightly different to my
> > > homebrew
> > > > > > > circuit. In my homebrew unit the driver
transistors were
> > > connected
> > > > > > > common emitter but my new circuit was
common collector .Re
> > > did the
> > > > > > > driver transistors and tried again. Now
works with all 8
> ir
> > > leds
> > > > > in
> > > > > > > Zone Splitter on all Zones . The range
is approx 15ft and
> i
> > > > > monitored
> > > > > > > the current which was approx  5mA .
I set up my Hv ports
> thru
> > > the
> > > > > > > control menu rather than a macro at this
stage just to
> > > confirm my
> > > > > > > hardware was connected ok. Would still
like to use opto
> > > isolation
> > > > > on
> > > > > > > the incoming ir ,will order something
from rs components.
> Now
> > > must
> > > > > > > update my drawing before i forget.
> > > > > > > >
> > > > > > > > Frank Mc
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > For more information: http://www.automatedhome.co.uk
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