a couple of things:I don't know if lirc supports it, but there are RF recievers for Linux; that's pretty much all you need. (Well, obviously on the software side, lirc support)
On Sat, Aug 23, 2003 at 06:08:02PM -0700, skeeterskip wrote:
>
> My ceiling fan has this cool radio frequency remote. I can have my
> back turned to fan and still control fan with remote. I'm wondering if
> anyone knows how to make such a remote for lirc.
1) IR dosnt need direct line of sight, u can have ur back turned to a reciever and still transmit, the light should bounce of the roof/wall (nice white walls?) and still hit the reciever, i can still use my IR remotes at home around corners (from one room to another, if ur Tx is strong enough (i use a 2nd IR led from D.S.E. boosted to about 55ma in my remote, so its cool)). If its a RF remote u have, to be sure completely cover the remote (so no light can escape) and see if it works. most of the ceiling fans/air cons etc for homes ive seen are IR not RF (most, not all).
2) RF is a lot different to IR. u cant just slap together a homebrew reciever for RF like u can for IR (u could even end up breakin the law with RF stuff :O). The only way i could see a RF remote used with lirc is to say, pull out the reciever/decoder board from ur ceiling fan, make a interface circuit to use it on the parallel port, and make some mods to lirc_parallel, maybe ur lucky and the decoder spits out a data format similar to other parallel IR Rx's.
3) the only type of generic RF stuff ive seen that would work with linux, are RF mouses and keyboards, i havnt seen any sort of generic RF remote control on the market that isnt designed for the win* user.
i use a cheap RF wireless keyboard and mouse and it only works up to about 5-7meters away, but the IR remote will work 20 meters away or more, and like i said around corners as well, which this cheap RF stuff cant do (it struggles to go through plaster!)
4) a long time ago i seen a project that was using a soundcard and some custom hardware to detect RF signals, i forget the name or links (was years ago) but it had something to do with HAM radio and packet radio, maybe hunt around those projects and u'll find this one. i never used it but remember thinkin how cool it was at the time.
regards,
rohbags.
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