Whirlpool Magicool IR_Remote Checksum

[daddyNux]

I have decoded the whirlpool Ir Remote. It contains 14 bytes. The 14th byte changes and is unique with each combination of temperature/mode/fan/swing etc. I tried many things to calculate this 14th byte. Can someone please help me or point me in right direction. Please!
@crankyoldgit
Excel Sheet link: https://docs.google.com/spreadsheets/d/1IOyjde0TtlpMBjx1tK16wKGyOBzaaRa4/edit?usp=drive_link&ouid=109369158109246350858&rtpof=true&sd=true

also attaching the excel file:
ir_remote.xlsx

Remote Image (there is no model number on remote):

[crankyoldgit]

You need to do this: https://github.com/crankyoldgit/IRremoteESP8266/wiki/Adding-support-for-a-new-AC-protocol#determining-the-bit-order-of-the-protocol

In short, what you think in your analysis are 1s in the protocol, are actually 0s. and vice-versa.
Also, you've got the bits in reverse order, you need to swap the bit order in each byte at least.
e.g.
Your 240 (16degC) in Binary is 11110000 (0xF0), but if you do as I suggest, it becomes 11110000 (0xF0) (yes, I know it's the same)
But
Your 17degC 112 in Binary is 01110000 (0xF0), but if you do as I suggest, it becomes 11110001 (0xF1)
18degC becomes 0xF2, 19C -> 0xF3 ...

That should help you out

[daddyNux]

@crankyoldgit
Thanks! now its all making sense. Decoding is completed with checksum calculation. Checksum: 12 + modulo of sum of 13 bytes (in inverted and then reversed) and then again reverse and invert to get checksum.
I don't know anything about modification in library but i was able to get esp8266 code from chatgpt to do all calculation all generate rawdata. I didn't check if ac is working but verified the raw data it was match with raw data of remote every time.

Maybe when you have time, you can implement it in library. When you do so please reply i will answer all questions.

Although there are many more features in remote but only these are necessary.
Also i have seen this remote with other brands too: "Marq", "Kelvinator"

Attaching the new excel sheet and nodemcu code.

ir_remote.xlsx

nodemcu_code.txt

[daddyNux]

@crankyoldgit Tested with AC at first its wasn't working but fine tuned them:
const uint16_t kHeaderMark = 3370; // Header mark in microseconds.
const uint16_t kHeaderSpace = 1365; // Header space in microseconds.
const uint16_t kBitMark = 580; // Mark time for each bit.
const uint16_t kZeroSpace = 250; // Space time for a 0 bit.
const uint16_t kOneSpace = 1003; // Space time for a 1 bit.
const uint16_t kFrequency = 38; // Carrier frequency in kHz.

and also added one more timing kbitTrailerMark (equal to kBitMark) rawData[index++] = 600;
at the end making total timing 227: header + headerspace + 112*2 bits + trailer

Now its working perfectly with AC
ready to be added to Library. Waiting Patiently. :)

Once again Thanks for your quick reply, I was able to decode the entire code.