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probonopd / irdb

One of the largest crowd-sourced, manufacturer-independent databases of infrared remote control codes on the web, and aspiring to become the most comprehensive and most accurate one
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Create 0,255.csv #157

Open nigelorr opened 4 weeks ago

nigelorr commented 4 weeks ago

Generic 20x20 LED smart curtain, unable to find definitive manufacturer. Examples should be found here NEC codes captured by IR Remote ESP8266

probonopd commented 4 weeks ago

Thanks @nigelorr. If you have any chance, are there any product numbers on the housing or the PCB?

nigelorr commented 2 weeks ago

The device itself is completely anonymous. However I found the original packaging which has Model BESL18 marked on it. Also FCC ID 2AKBP-BSL2

However the device doesn't match the FCC photos, so may or may not be the same...

Hope that helps!

Nigel

On 4 June 2024 18:44:19 BST, probonopd @.***> wrote:

Thanks @nigelorr. If you have any chance, are there any product numbers on the housing or the PCB?

-- Reply to this email directly or view it on GitHub: https://github.com/probonopd/irdb/pull/157#issuecomment-2148079934 You are receiving this because you were mentioned.

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probonopd commented 2 weeks ago

Thanks, this helps.

Do you think this is the device? https://device.report/avatar/BESL18

bengtmartensson commented 2 weeks ago

I have heard somewhere that Renesas (which is the successor of the NEC firm), requires a license fee for commercial uses of the NEC protocol, with the exception of the case were D (the device number) is =0, and S (subdevice) is default (=255). For this reason, there are a lot of "cheap" devices using the NEC protocol with D=0 (like the present one). So it may not be very valuable... although it does not hurt either...

probonopd commented 2 weeks ago

Interesting. Patents typically last for 20 years from the filing date. Since the NEC protocol was introduced in the early 1980s, any patents specific to the protocol would have likely expired by now. So I'd be surprised if Renesas could still charge for its use today on the basis of patents, but I am not a lawyer. Maybe they are charging for the device to be officially registered in their database or something like that? But then, a quick search in their support forum did not show anything relevant. Possibly it's an urban legend, but still to the effect that "cheap" devices stick to D=0. Or maybe that's just the default in most libraries, and the device manufacturers say to themselves, why change it if it works.

nigelorr commented 2 weeks ago

Yes, that looks like it. Thanks

On 16 June 2024 16:18:42 BST, probonopd @.***> wrote:

Thanks, this helps.

Do you think this is the device? https://device.report/avatar/BESL18

-- Reply to this email directly or view it on GitHub: https://github.com/probonopd/irdb/pull/157#issuecomment-2171739717 You are receiving this because you were mentioned.

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