remote control protocol

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chava
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remote control protocol

Post by chava » Fri May 07, 2004 2:47 pm

Hello
I have a remote control which I want to "break". actualy, it belongs to my company, but for some reason we cannot get the protocol anywhere.
how can I break it? is there any universal protocol? any web site to go to?
Jukin Chava<p>E.Dove Israel
R&D

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Edd
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Re: remote control protocol

Post by Edd » Fri May 07, 2004 3:37 pm

Far too little information was supplied. E.G.... Type of remote? Brand or country of manufacture? Product type that remote is used with?, etc , etc.
The reason being was, that I actually once serviced an infrared remote being used with a T-shirt press.... also a printing press.......they performed a lot of machine altering functions too!
With no further info to rely upon at this time, an IR det diode and a triggered O-scope would certainly permit you to extract/copy the serially encoded pulse train info of each function.
If you needed a duplicate remote you could just get one of the learning type replacement remotes that permits you to place the two units head to head and the new unit stores each pulse train code function as you alternate between them one by one.<p>73's de Edd
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Externet
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Re: remote control protocol

Post by Externet » Fri May 07, 2004 3:46 pm

Hi Chava.
An oscilloscope is all you need.
Without opening it, reading the [infrared] receiver output with an oscilloscope will give you the stream of zeroes and ones and pulse durations.
If you can open it and connect the oscilloscope to the [infrared led] transmitter, you will get the same result.
If you have a storage oscilloscope, each button pattern will be kept on screen to write them down more easily.
Miguel
- Abolish the deciBel ! -

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jwax
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Re: remote control protocol

Post by jwax » Fri May 07, 2004 5:36 pm

Chava, we need more info alright!
We don't yet know if it is RF or IR!
Hell, it may be ultrasonic!
WA2RBA

chava
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Re: remote control protocol

Post by chava » Wed May 12, 2004 3:02 pm

Hello all, and thank for replying<p>Its shurely IR, couse I know that an eye is been used to receive the data from it.
its a remote controler used to control Air Conditioning controlers.
also, I dont know the manufacturer but it is marked with "Model:LCDG2"
I searched for that name on the internet but found nothing...
I dont have an osciloscope with memory (in fact I dont have an osciloscope at all)
Is there any standard protocol for those devices?
Jukin Chava<p>E.Dove Israel
R&D

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jwax
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Re: remote control protocol

Post by jwax » Wed May 12, 2004 5:10 pm

WA2RBA

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Edd
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Re: remote control protocol

Post by Edd » Thu May 13, 2004 11:55 am

Do you know if the unit is of AMERICAN manufacture. If so we can trace down its source of manufacture by either UL identifier reference number on the unit or if it has any RF radiation involved a FCC ID number would have been posted on the main unit also.<p>And,if this unit JUST happens to be a YORK unit, you just might hop on over to Thailand and and while you are there drive down fron Bangkok and check out:
http://www.worldaeroplast.com/Universal.htm<p>XUAN LOI Jwax...see that you had the same URL twixt my laptop to internet posting time delay. <p>73's de Edd<p>[ May 13, 2004: Message edited by: Edd Whatley ]<p>[ May 13, 2004: Message edited by: Edd Whatley ]</p>

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Externet
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Re: remote control protocol

Post by Externet » Thu May 13, 2004 2:01 pm

Hello chava.
If you do not have an oscilloscope, I hope R&D in your signature means anything else but research & development.<p>Hi Edd
Did you mean made in USA ? Hard to believe. I think we only make potatoes now, maybe carrots too.
Even apple juice is imported from China ! :)
- Abolish the deciBel ! -

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jwax
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Re: remote control protocol

Post by jwax » Thu May 13, 2004 2:50 pm

No prob, Edd! Seems you speak a bit of oriental!
Apology accepted!
Chava, if you would buy, I'll go to Thailand and get whatever you need! :)
(I'll bet even o-silly-scopes are cheap there!)
WA2RBA

chava
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Re: remote control protocol

Post by chava » Sat May 15, 2004 3:00 am

youre mean... :(
I do have an osciloscope at work, not here at home.
I do have an osciloscope with memory (also at work) but it did not succeeded to catch the signal
No, I dont need an o-silly-scopes either
thank you anyway guys
Chava
and yepp... Reasearch & Development, thats my name
Jukin Chava<p>E.Dove Israel
R&D

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jwax
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Re: remote control protocol

Post by jwax » Sat May 15, 2004 6:41 am

Chava, we were only trying to help with the limited information you provided. :roll:
WA2RBA

chava
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Re: remote control protocol

Post by chava » Sun May 16, 2004 1:14 pm

Yes, I know, I was just kidding
thank you all
Jukin Chava<p>E.Dove Israel
R&D

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