Decoding IR Signal

Author
Discussion

The Moose

Original Poster:

23,123 posts

216 months

Sunday 29th March 2009
quotequote all
I would like to find out the hex codes for an IR remote I have here.

I have contacted the original manufacturers and they were useless.

A Google search has turned up sweet fa with regards to the IR hex codes.

Does anyone know of where I could get hold of a device to do the decoding for me???

Cheers

The Moose

TheEnd

15,370 posts

195 months

Sunday 29th March 2009
quotequote all
What is this for? programming a multi remote?

I've found books detailing loads, usually online manuals for the remotes, other than that, if you have an IR receiver on something, there is probably little shareware programs that will display the signals received

The Moose

Original Poster:

23,123 posts

216 months

Sunday 29th March 2009
quotequote all
TheEnd said:
What is this for? programming a multi remote?
In short, yes!!

TheEnd

15,370 posts

195 months

Sunday 29th March 2009
quotequote all
What you'll need, unless you try looking through other manuals to find out a quick program code, (which you could cross reference to see what else uses the quick code, and then try finding these other items in your original details), is a packet sniffer.

A quick look turns up hundreds of these, but they all seem to be Windows mobile, Symbian, or Linux.

That kinda suggests that there is a way of just asking your PC in XP/Vista etc what it is getting.

The Moose

Original Poster:

23,123 posts

216 months

Sunday 29th March 2009
quotequote all
TheEnd said:
What you'll need, unless you try looking through other manuals to find out a quick program code, (which you could cross reference to see what else uses the quick code, and then try finding these other items in your original details), is a packet sniffer.

A quick look turns up hundreds of these, but they all seem to be Windows mobile, Symbian, or Linux.

That kinda suggests that there is a way of just asking your PC in XP/Vista etc what it is getting.
Sounds like what I am looking for, just need to find the small shareware app to give me the codes it gets!!

Cheers

The Moose

cazzer

8,883 posts

255 months

Sunday 29th March 2009
quotequote all
It's not that easy mate.
I've been working on this recently for work.

Firstly, you have to have the correct HID device to connect to for the IR on yer pc/laptop.
Then you need to decode the codes coming from the remote.
Unless yer lucky and the remote is phillips based in which case the code is a 4 digit hex code, you'll find the others can be up to 26 hex digits long.
In addition the codes change dependin on if its the first or the second time you've pressed the button in succession.

What device is the remote for?

(Demoralised yet? smile )

The Moose

Original Poster:

23,123 posts

216 months

Sunday 29th March 2009
quotequote all
cazzer said:
What device is the remote for?
A Grundig freesat box (model number on the remote is: GUFSAT01SD with R03S X 2 on the line below)

cazzer said:
(Demoralised yet? smile )
Not a chance!!!

Cheers

The Moose

Edited by The Moose on Sunday 29th March 22:19

Morningside

24,114 posts

236 months

Sunday 29th March 2009
quotequote all
You can do it with an oscilloscope. Just need to fiddle with the triggering.
Too deep?

Edited by Morningside on Sunday 29th March 22:20

cazzer

8,883 posts

255 months

Sunday 29th March 2009
quotequote all
The Moose said:
cazzer said:
What device is the remote for?
A Grundig freesat box (model number on the remote is: GUFSAT01SD with R03S X 2 on the line below)

cazzer said:
(Demoralised yet? smile )
Not a chance!!!

Cheers

The Moose

Edited by The Moose on Sunday 29th March 22:19
Gimme a PM to remind me (cos I have a crap memory) and I'll look up some of the data I have tomorrow for ya.


The Moose

Original Poster:

23,123 posts

216 months

Sunday 29th March 2009
quotequote all
cazzer said:
The Moose said:
cazzer said:
What device is the remote for?
A Grundig freesat box (model number on the remote is: GUFSAT01SD with R03S X 2 on the line below)

cazzer said:
(Demoralised yet? smile )
Not a chance!!!

Cheers

The Moose

Edited by The Moose on Sunday 29th March 22:19
Gimme a PM to remind me (cos I have a crap memory) and I'll look up some of the data I have tomorrow for ya.
YHM

Ta

cazzer

8,883 posts

255 months

Monday 30th March 2009
quotequote all
There ya go matey.

A bit of a primer for you.
Give me a shout if you need something more specific.

http://www.sbprojects.com/knowledge/ir/ir.htm