View previous topic :: View next topic |
Author |
Message |
hmmpic
Joined: 09 Mar 2010 Posts: 314 Location: Denmark
|
IR code for Panasonic heatpump? |
Posted: Tue Jun 22, 2010 7:34 am |
|
|
I know its out of topic, but for my project I need the spec for the IR remote.
Any help on this? |
|
![](templates/subSilver/images/spacer.gif) |
Humberto
Joined: 08 Sep 2003 Posts: 1215 Location: Buenos Aires, La Reina del Plata
|
|
![](templates/subSilver/images/spacer.gif) |
hmmpic
Joined: 09 Mar 2010 Posts: 314 Location: Denmark
|
|
Posted: Tue Jun 22, 2010 12:06 pm |
|
|
Thanks but I know google:-)
I'am looking for the newer IR remote for Panasonic Heatpump(inverters) |
|
![](templates/subSilver/images/spacer.gif) |
flemse
Joined: 19 Feb 2008 Posts: 5
|
|
Posted: Sun Sep 12, 2010 8:23 am |
|
|
Hi
Now I have Logic dump, maybe some one can see something?
The dump is when pressing one key on the remote.
When looking at the smallest pulse it is: 435us, this mean that it start with:
8 Low (pulses) - 3 High (pulses)
From Trigger to marker B is always the same!! It start with 8L then 3H
From Marker B to D is the one there change. It start with 8L then 3H
Some help is needed:-) |
|
![](templates/subSilver/images/spacer.gif) |
Douglas Kennedy
Joined: 07 Sep 2003 Posts: 755 Location: Florida
|
|
Posted: Wed Sep 15, 2010 6:06 am |
|
|
Well basically they could do pretty much anything with the IR signal but they are constrained by the fact they need to minimize noise (fluorescent lights mainly) so they often use a preamble for AGC then various ways of coding of zeros and ones and then often redundancy ( same code repeated either as is or even in reverse order).
Examples of ways that are often used
long 9ms pulse is sent for AGC followed by a 4 ms space
the bits are code as follows
space coded .... zero and one is encoded by the length of the space
pulse=600us and fixed space varies 0= 600us 1=1500us
pulse coded .... zero and one is encoded by the length of the pulse
shift coded .... zero =short pulse long space one =long pulse short space |
|
![](templates/subSilver/images/spacer.gif) |
hmmpic
Joined: 09 Mar 2010 Posts: 314 Location: Denmark
|
|
Posted: Thu Sep 16, 2010 8:10 am |
|
|
Thanks for the reply, I looked at the RC6 code and can not get to be an RC6 code.
I now hook a ir-transistor and a normally scope to look at the freq. It is 36Khz!
Then I use a logic analyzer and a IR-module with 36Khz (SFH5110-36) and here are some logic dump.
The IR1 and IR2 is one key press on the remote!
IR1 is send first and is _not_ changing at all, all time the same.
IR2 is the part there change with the key on the remote.
You see a marker "C" on both dump, it is the overlap in the too print!
IR1:
IR2
![](http://i56.tinypic.com/2jag214.jpg) |
|
![](templates/subSilver/images/spacer.gif) |
|