Sujet : Re: Ir remotes
De : blockedofcourse (at) *nospam* foo.invalid (Don Y)
Groupes : sci.electronics.designDate : 20. May 2024, 08:15:52
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <v2etb9$3s8ci$1@dont-email.me>
References : 1
User-Agent : Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.2.2
On 5/20/2024 12:01 AM, Don Y wrote:
My understanding is that Ir remotes modulate an Ir "carrier" signal
in a particular pattern to express a particular "code" corresponding to
the key pressed/held.
And, that different "chipsets" use different carriers and encodings.
Is there a front-end that is tuned to the particular carrier
in the receiver? Or, is all of this done "digitally"?
I.e., with a fast-enough (Ir) photodetector, should I be able to
decode ANY signal from ANY "remote"?
And, before anyone mentions the obvious, I've already looked at lircd
which is the reason behind this post; why do they claim they can handle
ALMOST all remotes? Is this a limitation of their hardware implementation?
Or, timing problems in the way they try to process the raw video signal?