RE: automating a remote control - relays?

["Keith Doxey" <ukha@xxxxxxxxxxx>]

Optoisolator - think of it as a solid state relay....

Instead of a coil which operates a contact, it has an LED and a
phototransistor. When the LED is lit ( relay - coil energised) the
phototransistor conducts ( relay - contact closes) however because the
phototransistor is polarity sensitive it must be connected the correct way
round or it wont conduct.

For any button on a keypad, one of the contacts will be more positive than
the other, you just need to ensure that the transistor is connected the
correct way round and when you light the LED the key will effectively be
pressed.

Because opto isolators are solid state they can also operate much faster
than a relay and are totally silent. Depending on what you are connected
to,
you could send multiple keypresses very quickly

HTH Keith

-----Original Message-----
From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf Of
Paul Gale
Sent: 10 July 2010 11:36
To: ukha_d@xxxxxxx
Subject: RE: [ukha_d] automating a remote control - relays?

That's no problem :)

MFEB = Multi Function Expansion Board - HomeVision add on board

As to Opto's - I'll let someone else answer that...

Paul.



-----Original Message-----
From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf Of
Gary Tall
Sent: 10 July 2010 11:34
To: ukha_d@xxxxxxx
Subject: RE: [ukha_d] automating a remote control - relays?

Sorry to but in to the thread Paul.



I have some of these too and would be interested in including them in my
HV/C-Bus/Pronto Pro automation.



I'm someway behind the curve from you guys, where should I start on
Octocouplers, MFEB????



Sorry again Paul.



Regards

Gary



From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf Of
Paul Gale
Sent: 09 July 2010 11:56
To: ukha_d@xxxxxxx
Subject: RE: [ukha_d] automating a remote control - relays?





Yeah - you have the three button Velux remotes don't you - mine are the
Integra with 9 buttons - but very flexible and one remote controls all the
windows and blinds here. As I have 2 spare I thought it might be worth it
if
I can find enough outputs from HV!

Paul.

-----Original Message-----
From: ukha_d@xxxxxxx <mailto:ukha_d%40yahoogroups.com>
[mailto:ukha_d@xxxxxxx
<mailto:ukha_d%40yahoogroups.com>
] On Behalf
Of Gareth Cook
Sent: 09 July 2010 11:47
To: ukha_d@xxxxxxx <mailto:ukha_d%40yahoogroups.com>
Subject: Fw: [ukha_d] automating a remote control - relays?

BBSB takes 3 relays in sequence - I hold 2 closed, and pulse another for
half a second.

I also control Velux remote, but thats easier as it's one button for half a
second.

I guess there's a lot to test - how quickly you can press the buttons etc
- might sound like a machine gun every time!!!

I'm thinking of automating one of my Velux Integra remotes as this would
give a lot more control than the interface boxes I have - although a fair
bit slower on the button pressing maybe. If I did all the buttons, there
would be 9 relays needed though!

Paul.

-----Original Message-----
From: ukha_d@xxxxxxx <mailto:ukha_d%40yahoogroups.com>
[mailto:ukha_d@xxxxxxx
<mailto:ukha_d%40yahoogroups.com>
] On Behalf
Of Gareth Cook
Sent: 09 July 2010 11:06
To: ukha_d@xxxxxxx <mailto:ukha_d%40yahoogroups.com>
Subject: Fw: [ukha_d] automating a remote control - relays?

I've done that with a BBSB remote, and it's proving to be tricky on the
programming side with Comfort - so not fully functional as I'd like as yet.

Clunky

G.

Gareth Cook MBCS CITP
SWG Sales Europe

----- Forwarded by Gareth Cook/UK/IBM on 09/07/2010 11:03 -----

Discussion
Main Topic

ukha_d@xxxxxxx <mailto:ukha_d%40yahoogroups.com>
Today 10:29

Subject:

[ukha_d] automating a remote control - relays?

Category:

I'm considering whether to automate a remote control - I can easily hack it
and bring out the button contacts to then link to a number of relays.

However, I was wondering if relays are the best option - they can be pretty
noisy, especially if the remote needs a key sequence.

If I'm controlling from HomeVision - are there any smarter solutions that
anyone can recommend?

Paul.

[Non-text portions of this message have been removed]

------------------------------------