Adding a Kelvinator reverse-cycle air-conditioner IR remote?

ESPHome
1

Hi,

I’ve reversed the IR codes a while back for the air-conditioner units in my house, and I’m sending the raw codes without issue. It works on the toshiba_ac codes (except for one button) and looks like it works similar to other remotes in that component. But, I don’t feel confident getting in and messing with the code and potentially breaking something or not adding things in correctly.

I wrote a python script a while back to help decode the IR codes.

As I have 3 air-cons with 3 model numbers, I decided to go with the remote control model for naming mine, RG03A. The air conditioners are branded Kelvinator.

I’ve been sending the IR codes with the toshiba_ac component for about 18 months now. Here are some codes from my python script:

codes = [
    ["25 cool auto",     0xB24DBF40C03F],
    ["25 cool fan1",     0xB24D9F60C03F], 
    ["25 cool fan2",     0xB24D5FA0C03F], 
    ["25 cool fan3",     0xB24D3FC0C03F], 
    ["26 cool auto",     0xB24DBF40D02F], 
    ["27 cool auto",     0xB24DBF40906F], 
    ["24 cool auto",     0xB24DBF4040BF], 
    ["23 cool auto",     0xB24DBF4050AF], 
    ["18 cool auto",     0xB24DBF4010EF], 
    ["25 dry  auto",     0xB24D1FE0C43B], 
    ["25 heat auto",     0xB24DBF40CC33], 
    ["25 fan  auto",     0xB24DBF40E41B], 
    ["25 auto auto",     0xB24D1FE0C837], 
    ["25 cool auto off", 0xB24D7B84E01F], 
    ["25 cool auto on",  0xB24DBF40C03F]]

The bytes go like this (I actually broke them down further, but this is simplified to whole bytes):

1: 0xb2
2: 0x4d
3:
0xbf auto
0x3f fan3
0x5f fan2
0x9f fan1
0x1f dry
0x7b off
4: checksum: 1 ^ 2 ^ 3
5:
rbc temp << 4
||
0x00 cool/off
0x04 dry/fan
0x08 auto
0x0c heat
6: checksum: 5 ^ 0xff

Notes:

  • The “rbc temp” for temperature is a grey code / reflected binary code with 0x00 = 17C, etc… like what is defined for the RAS-2819T.
  • The checksums are xor of previous bytes.
  • Byte 5 is 4 bits temperature, 2 bits mode, 2 bits off, I tried putting an “||” in there to show a logical or.

So, in short: I’m happy to get in and modify the code and add the remote, but I’d probably need some hand-holding. Alternatively, someone who knows the code better can probably get in and do it and I can give it a test, especially since this remote does share common functionality with the other toshiba_ac remotes. I have esphome in a python venv as per the manual install instructions on the website (Linux).

2

Hi Mabs.

A lot of the ESPHome Devs are more active on Discord ( see bottom of page here).

If you don’t get bites here, I would post a message in general support and get some steer on what to do with it. Most likely you’ll be directed to where to raise a feature request but there may be some useful discussions / quicker clarifications before that.

1 Like