JP1 Remotes

I have a Set Top Box manufactured by Handan - http://www.handan.co.kr/english/main4-3.htm

I am making a remote for this using a microcontroller. For making that, I have to know which IR encoding protocol(NEC, RC5 etc) is used by Handan.

Does anyone have any idea?

This thread - https://www.hifi-remote.com/forums/viewtopic.php?t=4434 has info about a Handan Digibox.
The KM and IR files for the universal remote which has been configured to control a Handan Digibox are provided in that thread.
Can I know the IR Protocol used by using some software to analyse those files?

The Handan Satellite Set Top Boxes use the Echostar 2200. Our tools don't quite recognize this signal for decode and think they are Streamzap.

What form do you need to see this in?

Can you work with pronto hex, or do you need raw timing data?

I need all the data. Because there is so little information on this protocol(even though its a variation of RC5), I will need everything you have.

vickyg2003 wrote:The Handan Satellite Set Top Boxes use the Echostar 2200. Our tools don't quite recognize this signal for decode and think they are Streamzap.

Streamzap and Echostar 2200 are the same protocols, except one has a carrier frequency of 56k and the other is 38k. They both use the $0182 executor. (Note: the Handan upgrades in the file section use a homemade $0123 executor, but it's the same signal).

Hotshot, you haven't given us any idea what sort of info you're looking for on the protocol, nor what format you'd like it in, so I can only guess as to what you need to know. You can load the file above into our Protocol Builder spreadsheet if you want to see exactly how it works (it's written in S3C8 assembler).

The carrier frequency is 56kHz
There's an 8-bit fixed pattern followed by a 7-bit variable pattern.
Bit5 of the fixed pattern is a toggle bit that flips with each button press.
Logical 1 = +850 uS -850 uS
Logical 0 = -850 uS +850 uS
Leadout = 49570 uS
the whole signal repeats.

Does that help?

Thank you