blafois / daikin-ir-reverse Goto Github PK

Some remotes can switch to Fahrenheit mode by holding Temp+ and Temp- at the same time for 5 seconds, however it is internally transmitting the same as Celsius with precision down to 0.5 deg C, with 0x2d (22.5 deg C) and 0x37 (27.5 deg C) skipped. Mapping found below:

There is no other code changes observed on the remote.

Warm mode is unchecked.

Hi Ben,

You mentioned you used a simple sketch to capture the IR data. Are you able to share the sketch you used?

Hi Ben,

do you have some example implementation? Or could you please provide the capture so I can see how the whole frame is transmitted?

Thanks.

Offset  Description            Length     Example        Decoding
========================================================================================================
00-03   Header                 4          11 da 27 00
04      Message Identifier     1          00	
05      Mode, On/Off, Timer    1          49             49 = Heat, On, No Timer
06      Temperature            1          30             It is temperature x2. 0x30 = 48 / 2 = 24°C
08      Fan / Vert Swing       1          30             30 = Fan 1/5 No Vert Swing. 3F = Fan 1/5 + Vert Swing. 
09      Hori Swing             1          0F             00 = No Horizontal Swing. 0F = Horizontal Swing 
0a-0c   Timer delay            3          3c 00 60           
0d      Silent / Powerful      1          01             01 = Powerful enabled, 20 = Silent enabled
10      Econo / Eco Sensing    1          84             84 = Econo, 82 = Eco Sensing
12      Checksum               1          8e             Add all previous bytes and do a OR with mask 0xff

Added Horizontal/Vertical swing, Silent outdoor unit feature (denoted as Silent), Eco Sensing feature.

The second frame seems to be related to timer feature, which mine has a byte ticking to the minute, but I am not yet sure.

Hi.
I'm planning to control a Daikin AC device from a computer, preferably with an USB-to-IR adapter, but I don't know which hardware to buy. :)
Did you use the diode in your schema to send frames to your Daikin device or did you use an specific device? If so, Which device did you use?
Best regards.
EDIT: Sorry already saw in a previous issue you used a led. :)

Hi Ben,
I'm quite new in this scene and look for the possiblity to use a Homebridge/Homekit plugin to emulate the ARC470A1.
I found your IR-Reverse library which to my view contains the codes you examined from the original ARC470A1.
Do you have already a respective plugin for homebridge, which can be used? I understand that the target of what you did is to use homebridge to control your AC? Or maybe you know where to find it (on the npm page I didnt find anything correlating...) Or am I wrong and can use your code in Homebrige already? But there is no config.json....?

Thank you

Thomas

Hey such a small world!!! I was trying to do the same thing to as my Daikin to my homebridge using an esp8266 and an ir sensor. Just wanted to ask you for a favour by explaining me how your got it working. Cheers 🥂!!

Daikin air cons has a diagnostic feature where remote sends out all codes but the AC unit long beeps when the diagnostic code matches.

See https://www.daikin.com/products/ac/services/error_codes for the feature.

The diagnostic code includes only one frame
11 da 27 00 01 XY 00 WW

Where X is

(Note that A-F is a guess from the manual. Not verified)

Where Y is

Where WW is the checksum

Hi! I also check my arc470a1 rc to decode, but my rc alvays give different code for same command. I catch them with xiaomi ir. This device use kind of raw format. Do you know how can i convert your hex(?) commands to raw format? Thanks! ;)