IRForum

Hi Tien I don't know how I could explain better than the detailed annotated image above. I also replied to your email directly. There are some video on checksum & reverse engineering in the videos link below. Should also be in the user guide. If you cannot figure it out we can look at 1 or 2 pro...

cool thanks for that....looks pretty straight forward.

Thanks for posting . If running on battery, 33% duty cycle is usually optimum (more efficient). However as you are running on mains power, 50% duty cycle should do fine. using 84 or 85 might be a better value (vs 87) as it would be closer to 33.3333% duty cycle. Alternatively 127 would get you 50%. ...

FYI: usually I ssee this number added to 16DegC.
So make sure you are recording correctly. Set temp to 15 and then record when you press temp+.....etc
(Some of your numbers look 1 degC out based on the rule above.

For 25 degC

Binary: 1001 =9

9+15=25

Looks good... I also came to the same conclusion on Checksum. However I made changes to the ini file as follows: [CUSTOM83] altName=DUCASA72AC Generic=True Syntax=HB072T Marks=530,530,8480,530,0,0,0,0 Spaces=1590,530,4240,0,0,0,0,0 Header=9000 HeaderSpace=4500 Mark=530 Space0=1590 Space1=530 Delta=1...

OK I got your file and sent you a new ini file with instructions. It does indeed look like a new protocol to add to the list. The timings of IR signals always vary due to the distortion created by IR receivers. can be +/- 200uS. However, Our LearnIR module usually captures to within a few uSecs. re ...

I would like to learn how to create new protocols myself instead of asking for help. Sadly we don't publish the syntax as it would generate too much followup & gets complex very quickly. :( That is why we offer to add support in for users, with the bonus that everyone gets access to all the new...

Yes, they should be inverted as IR receivers use inverted logic. You will likely get much better timings using our sketch from the blog, https://www.analysir.com/blog/2014/03/19/air-conditioners-problems-recording-long-infrared-remote-control-signals-arduino/ for basics search for "sbprojetcs i...

Hi yes we usually add in additional protocols for users by updating the ini file. (within reason) So just follow the instructions here: https://wiki.analysir.com/index.php?title=AnalysIR_submitting_a_set_of_IR_signals_for_AC_units We will issue a new ini file once we get them, but it may take a few ...