Code reader

Does/Has anyone make/made a IR remote code reader? I'm thinking a IR sensor, a few parts, USA, and a SMOP as my old boss would say.

With this you could read the codes coming from various remotes.

{Simple Matter of Programming; i.e. the software folk's task}

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Reply to
David Lesher
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You may want to investigate lirc.

Reply to
miso

On a sunny day (Fri, 28 Mar 2014 03:41:07 +0000 (UTC)) it happened David Lesher wrote in :

Somebody mentioned lirc.

But if you just want to replay the code:

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You wind up with a file for every remote command that you can then send again.

I also bought a 'learning' remote control on ebay, copied commands from my TV, LED lighting, some other things, robotic vacuum cleaner, to it: ebay item 140598827312

4$37
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Great thing!

Reply to
Jan Panteltje

And another one , please, for execising otherwise dedundent bits of kit that has no remote control, no "universal" ones work on it, unobtanium replacement. Perhaps sends out all know codes , broken into 2 search segments perhaps. One the model code , that hopefully when repeated would operate on on/off/standby and then the individual function codes. Then after that just load up a learner remote

Reply to
N_Cook

David,

You might take a look at this USB dongle:

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Manual here:

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Using it WinLIRC under Windows:

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Even if you decide not to get this particular unit the documentation should help you firm up what you do and don't want.

Enjoy...

Frank McKenney

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Reply to
Frnak McKenney

On a sunny day (Fri, 28 Mar 2014 09:28:40 -0500) it happened Frnak McKenney wrote in :

I just have a photo-darlington on a par port pin.

Reply to
Jan Panteltje

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It only knows the "power" code, though.

Standard disclaimers apply: I don't get money or other consideration from any companies mentioned.

Matt Roberds

Reply to
mroberds

Curious. At first sight I thought it was one of those blocker remotes, you hide in the room , that just send out continuous 36KHz pulses so you can retain your favorite channel , while the master of the house desperately presses the button for the football channel on the proper remote. So why North American/Asian model and the European model

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sounds bogus to me. Makers don't change the IR coding for the same model sold in different countries, unless I'm missing something.

If it did work , then its the first wedge into a dead unit. Once you get some recognition either on or off then individual function coding on top is relatively easy. Just monitor the output pulse train for coincidence of the "dead " unit responding. Then the Lirc/Winlirc route to add the function codes

Reply to
N_Cook

a bit more info here

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Perhaps a more sensible route is via Lirc/WinLirc and just collate all the headers in their databases into one long string and fire off into an IR diode

Reply to
N_Cook

Thinking about it some more. That gizmo is no more than a "universal" remote in search mode, and only 1 minute of them at that. So the dead unit syndrome comes in where "universals" elicit no response. So the only thing is to analyse , (initially) all known mark/space/durations of on/off codes and set up a PC routine sending out modulated IR pulses of each of those variants and trains of all pulse permutations from 3 incrementing upwards to whatever the known maximum of pulses ever used. Tied in with a feedback from the unit under test to stop the loops when the unit's monitored on-LED goes out

Reply to
N_Cook

Works great. I've had one for 10 years.

The guy built an IR receiver that just logged what was sent to it, then went round to a bunch of electronics stores and fired all the remotes into it. The TVbeGone just sends them out one after another, roughly in descending order of sales volume.

Brilliant.

Cheers

Phil Hobbs

Cheers

Phil Hobbs

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Reply to
Phil Hobbs

On 29/03/2014 14:39, Phil Hobbs wrote:

As enterprising as the follwing (for ages I'd been trying to find an IR remote for an HD video projector, serial link from pc was rather a pain) then this aftermarket one emerged in the last year.

RMC 13290, uses SONIX SN8PC20SG, correct coding for most of the functions. Plectrum at middle of long edge at first. This one , I had to break into for curiosity, uses a SONIX SN8PC20SG full data out there, and little else. Programming via 4 pads accessible via the battery compartment, so 4 data lines for that and the other 13 data lines for presumably 5x8 matrix 40 keypad. What is the process of going from LIRC or some other R/C database or OEM or learner r/c from an original to getting data inside one of these one-time learner R/Cs. Or some other more general process? A bit more "rm series" "remote control" in google images shows there is a generic physical form of 40 keys or higher keypad counts and within them subsets with differing legends for DVD/TV etc , for hundreds of different makes and models within those subsets. Just the data must be different inside and a different RMC number. Not all functions are necessarily present eg my one has no PiP function that is on the original r/c but never used anyway, but it does have the vital Menu and Enter key. What an enterprising idea on someone's part. I just wonder what lies behind the data accumulation/distribution, part of the dark web? If they pulled the data off "universal " r/c s then it was not on one of the 5 or 6 "universals" that I tried. A market stall near me has a few boxes of hundreds of assorted used r/cs for 1 or 2 quid each. Perhaps something like that or a large charity shop that gets hundreds of donated units with remotes , but are not sellable, is the source of the data. But usually like that only the maker name is there , not the unit model number that those r/cs relate to . Or the route you mentioned, going around stores and copying all the codes , surrupticiously presumably

Reply to
N_Cook

It's more like a universal remote that only sends the "power" code for all the TVs it knows about.

I suspect that their collection of all the "power" codes for TVs worldwide doesn't fit in the available EPROM/flash, so they cut it in half by region. Some codes are probably the same in both versions (Sony and Philips sell TVs all over the world), but come at different points in the sequence according to sales volume.

They also have a kit model and a fancy model that don't have the US/ Europe distinction. (The fancy model ships with a different power adapter based on region but the codes are the same.)

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Standard disclaimers apply: I don't get money or other consideration from any companies mentioned.

Matt Roberds

Reply to
mroberds

The PICAXE system reads Manchester code easily.

Reply to
David Eather

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