[Non-NASA] Help with Ducted system about esphome_samsung_ac HOT 235 CLOSED

That would be absolutely awesome! Thank you :)

Can i donate to you or anything by way of saying thank you?

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Highly interested in this project, thanks for the work done so far! I have the AE090RXEDGG/EU + AE260RNWSGG/EU heat pump combination from Samsung. According to the manual, the optional wifi module kit MIM H04EN can be installed. This kit is NASA compliant. But the kit is expensive and only accessible via Samsung Smartthings app. I am very much interested in this ESPHOME project to directly connect my heat pump to Home Assistant. Do you think it will be possible to at least read all interesting information (temperatures, power usage, error codes, etc)?

I think this should work. My devices are from mid 2022 and I can control them via Home Assistant now. Temperatures just work fine for now. Power usage and error codes should be possible, but I did not yet invested time to integrate them.

Currently I am trying to write the code to send messages to NON NASA devices to be able to control them as well. The old protocol requires a lot bit juggling and is not that straight forward as the new one.

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Hi buzurk26, currently this would not work out of the box with that setup. I made sure it NonNASA can be integrated but currently it is not integrated. This is mainly cause I can not test it. When you would do the test part, I can pick the code over.

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You can ignore this.

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Highly interested in this project, thanks for the work done so far! I have the AE090RXEDGG/EU + AE260RNWSGG/EU heat pump combination from Samsung. According to the manual, the optional wifi module kit MIM H04EN can be installed. This kit is NASA compliant. But the kit is expensive and only accessible via Samsung Smartthings app. I am very much interested in this ESPHOME project to directly connect my heat pump to Home Assistant. Do you think it will be possible to at least read all interesting information (temperatures, power usage, error codes, etc)?

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Highly interested in this project, thanks for the work done so far! I have the AE090RXEDGG/EU + AE260RNWSGG/EU heat pump combination from Samsung. According to the manual, the optional wifi module kit MIM H04EN can be installed. This kit is NASA compliant. But the kit is expensive and only accessible via Samsung Smartthings app. I am very much interested in this ESPHOME project to directly connect my heat pump to Home Assistant. Do you think it will be possible to at least read all interesting information (temperatures, power usage, error codes, etc)?

Hi, I have exactly this WiFi kit, but I would like to get it local so I am also trying to get this working with esphome. I have ordered the necessary equipment and hopefully I will be able to start testing it soon.

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Hi @lanwin I would be happy to do the testing in hope to get a working solution

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Hi @lanwin I have a ESP32 and TTL adapter all setup with ESPhome on it ready to go, let me know what i need to do to help test

thanks a bunch

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Give me some time. Currently I am a little bit overloaded.

In the mean time you could solder everything together. If everything works, the LED on the RS485 board should blink every few seconds.

Then you can bring up ESPHome and try to setup the ESP with my example script https://github.com/lanwin/esphome_samsung_ac/blob/main/example.yaml . Everything below device should be removed for now and the baud_rate should be changed to 2400.

If everything should work, you sould be able to access the webserver on port 80.

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Hi @lanwin

Cheers, greatly appreciate your help!

Working in the background to control the zone motors and we mostly got that sorted so just pending the AC control, will spin up an esp with your code and capture the data?

Can i use esp32??? just replace the top part of the code with the board type or is 8266 preferred?

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Hi, Its all connected now with your code, I left out everything under "devices" as you suggested

In the esp logs i see this over and over

The RX light on the TTL485 is flashing heaps but nothing coming down to the ESP logs

Is this code compatible with esp32? should i buy an esp8266 instead and try?

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Switched to an ESP8266, still not recieving data on the ESP

I have this UART converter

Wired like this

and here is my code https://pastebin.com/ujyNVnqt

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Switched to an ESP8266, still not recieving data on the ESP

I have this UART converter

Wired like this

and here is my code https://pastebin.com/ujyNVnqt

Switched to an ESP8266, still not recieving data on the ESP

I have this UART converter

Wired like this

and here is my code https://pastebin.com/ujyNVnqt

Thats correct so far and the output is what I would expect. As I said. The actual data handling of the old protocol is not yet implemented. This is why there is not output.

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Please install again. I added some basic logging witch should log the received data messages. You could attach some samples I can use.

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@lanwin - Ah makes sense, i hadnt realised.

Do I just re-upload the code to the esp via esphome i assume and it will pull your changes??

Also, does your code support esp32? i plan to use esp32 in future

greatly appreciate your time

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Reinstalling should pull the changes.

ESPHome supports ESP32 so the code should work there too.

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Thank you, Just reinstalled now. Not getting any output unfortunately

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Can you add this to your config under UART

  debug:
    direction: BOTH
    dummy_receiver: false
      after:
        delimiter: "\n"
        sequence:
        - lambda: UARTDebug::log_hex(direction, bytes, ' ');

This sould print everything whats received via UART.

And did your RS485 convert is blinking?

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Sure, will add that now and try

The RX led on the converter is blinking rapidly yes, nothing on the tx led

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You are at the wrong place. Under UART not under logger.

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Yeah sorry my bad, tired eyes

uploading now

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Heaps out output now

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capture here https://pastebin.com/RfvmDbXr

Note the system is currently in standby, i turned it on again now and its getting more data too

EDIT: added a longer capture after turning system to heat mode https://pastebin.com/euh0yEy8

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Ok it seems that its receiving data. Please remove that lines again and pull and install again. I added another logging code.

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Awesome, Will do that now.

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Back to no data unfortunately

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Ok just put back the debug code from above. That data did not seems to match from what is specified in the protocol.

There should at least be some \x32 and \x34 in there.

Can you try to swap F1 and F2?

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Oki, will swap f1/f2 and add that debug code back in

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Here is the log now, https://pastebin.com/1jiz9uPE

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Hmm still no \x32 and \x34. Can you swap back F1/F2 and then try the following baud rates? Please check then of you find multiple \x32 and \x34 in log.

1200, 2400, 4800, 9600, 19200, 38400

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Awesome, will do some testing tomorrow (well today now :-P ) and let you know asap, Thanks again!

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Got to 9600 baud rate and things changed

RAW Code for 9600 baud -https://pastebin.com/Jb7xbR34

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Interesting. I thought the older systems use 2400 baud.

So anyway. We have now data packets I can work with (the yellow parts).

You can now delete the URT debug stuff.

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Oh that is awesome to hear :) Glad were on the right track - Phew!

I'll take that out now and reboot, Anything else you need let me know

EDIT: Code removed, seeing lots of the yellow text and sometimes also see [W][TEST: 024]: 3200c828004334

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Can you please reinstall and run it some time and see of you get some log messages.

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Yep will do, did you want me to capture the logs?

I can certainly see a difference, the yellow logs are coming in at a much slower rate now and have extra details in front of them

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Here is the log, running for about 1.5 - 2 hrs
logs_esp32-hvac-test_run (2).txt

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If you want you can install again. Then you should see some "known addresses".

If that work you could add some devices with that addresses (from template) and reinstall. Then you should be able to see target temperatures, room temperatures and mode within the webinterface and homeassist.

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Awesome :) will do that now

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Sorry not quite sure w hat format to add that known devices into your example code

Tried a few iterations like
"00, c8"
"c8"
"00:c8"

samsung_ac:
  devices:
   - address: "20.00.00"
    room_temperature:
      name: Test1_temp
    target_temperature:
      name: Test1_target
    power:
      name: Test1_power

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This should work.

samsung_ac:
  devices:
   - address: "00"
     room_temperature:
       name: Test1_temp
     target_temperature:
       name: Test1_target
     power:
       name: Test1_power

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OMG!!!!!!! i think were getting there - AC is on now and target is set to 20 deg on the panel

on/off not showing status and adjusting that temp slider does not seem to do anything i assume that expected?,

Is there option for fan speed and mode? (sorry if im jumping too far ahead, dont mean to just excited,)

Thank you

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:D dot get to exited. Currently this reads only a little bit data. Its not complete yet. And the sending part is currently missing.

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I really, really appreciate your help on this, truely, let me know if you need anything further from me

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Hi @lanwin
Just wanted to touch base to see if there was anything else i can do to assist on this one?

Do you know if (now that we have that information) that it likely we can get the rest? Just trying to plan ahead and what to buy but before i go down that path hoping to get this working

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I am sorry. Currently I am ahead of a week off. So don't expect anything the next two weeks.

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Hi, Hope you had a good break

Wondering if you had time to revisit this?>

thank you

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Hi, I am back. Maybe I get some time the next days to work on that.

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Good evening, I have this heat pump from Samsung. I don't know which category it falls into, NASA or NO-NASA. Or if it is likely that this integrity could work when it is finished.
Thank you Zoul
AE160JNYDGH

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Good evening, I have this heat pump from Samsung. I don't know which category it falls into, NASA or NO-NASA. Or if it is likely that this integrity could work when it is finished. Thank you Zoul AE160JNYDGH

It seems Samsung uses only this two protocols for everything. So when its a new devices I would bet it uses NASA internally.

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Hi Mate, Hope your well just wanted to see if you had time to work on this any further? thanks

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@buzurk26 I need your help. Can you generate some data samples. Your installation still logs the raw messages right?

I need examples for the following values.

fanspeed, bladeswing, mode

Make some examples where you write down what you want to set, then change the values to that and copy the messages 0-5sec after you made the change (if you change all three values measure after the last one).

Then turn off the device and do the same. Even when powered off. The system should send a messages with the latest values and power off setting.

And repeat that with some different values. What values do you set does not matter. But they should be different for each measure.

I need that to develop the code for message decoding and encoding. The old protocol is pretty raw. I need to read some values of different bits and since I have not enough test data its not that simple to get the code right.

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Hi There,

Thanks for that and more than happy to help! I still have it running and all the codes are cycling so assume all is working where we last left off

What i am wanting to read and control is

• Read current room temp
• Read & adjust setpoint temp
• Read and change mode (auto, heat, dry, cool, fan)
• Read and change fan speed (auto, low, med, high)

I did briefly switch over the matthias code -https://github.com/matthias882/some_esphome_components
and also recorded what works and what does not.

Here is my code in ESPhome when testing his https://pastebin.com/JQSZmQns

Found that the ESP web screen looks like this, status's update etc

I noted down what occured when i changed things on the panel

Top row fan headings are what the panel was set to in regards to fan speed, the numbers are what the ESPhome web page saw

Temps, output power etc all seems to work, change values etc

The reason i done this was to see if there was anything already in place in that code that you could use (might save extra work) but i dont know if your code is different (im not a programmer sorry)

Switching back to your code now, so do i need to record the logs of data that are shown after performing each function??

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Ah sorry. What I need for each value is this messages from the log:

[11:48:41][W][command:042]: 00 C8 40 3200c84020000000408900472634

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No worries can get that, just wanted to let you know what was already working in between your code and mattias code base, im sure you can integrate the working parts in to save rework

So you want me to perform each function on the panel and capture the code that is logged after that???

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Not on the panel. I mean directly control your AC via remote

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I dont have a remote sorry, Only have the touch panel that does all the control, this is what i have

ITs a ducted system not a wall mount one with remote

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Think of the panel as my remote in the context of this system :)

Ignore the zone buttons, these will be managed by another method

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Think of the panel as my remote in the context of this system :)

Right :D

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So if i perform an action on the panel (remote) then the esp should show a log of code within 5 seconds of that action and you want me to note that?

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Right and I need the exact values there where present wenn these messages appear so I can compare the values I get out wenn decoding the message.

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Still working through this sorry its really hard to lay it out as there are so many combinations

Can i exclude what is already working in mattias code as posted in my last posts (with the screenshots above)

Do you have a good way to map this out so its readable?

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Still working through this sorry its really hard to lay it out as there are so many combinations

I dont need all combinations. A few examples with different values are ok.

Can i exclude what is already working in mattias code as posted in my last posts (with the screenshots above)

No. He uses a different programming language. So I still need test data to verify it works.

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Hopefully this is what you need, thanks again :)

AC-Output.pdf

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Ok that helps. Whats now missing is bladeswing (modes). Could you create a sample for each mode your device has?

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Awesome

Not sure what you mean by bladeswing? being a ducted system it does not have blade swing (i think only wall mount units have that)

The only options i have on my panel (remote) is

• ON / OFF
• Temp UP / DOWN (18 degrees C to 30 degrees C)
• Fan UP / DOWN (Auto, Low, Med, High)
• Operating MODE (Auto, Cool, Fan, Dry, Heat)

Or do you mean you want me to cycle through operating modes (Auto, Cool, Fan, Dry, Heat) and capture the codes for them?

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Ah...a ducted system is one witch is build into the wall right? Did not noticed that.

Nono I mean the blade swinging from the mounted units. But since you dont have one, I leave that skip that for now.

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@buzurk26 can you please update component and check if you toggle the Power Button that changes anything? It should power on/off and should change target temperature to 18° and everything to auto.

I added test code that should send a message. But I am not sure if its the right one. So maybe nothing happens.

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@lanwin Will test now and report back shortly, thank you :)

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@lanwin Nothing is happening sorry

I turn it on here

It looks like it trys because every 5 seconds as the target temp, set temp and the slider changes then reverts back to the above screenshot

I think the previous version of the code, the target temp reading, set temp reading and the on/off reading was working, now its coming annd going every 5 secs

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Here is a video, you can see how set temp and target temp and the slider read every 5 secs
https://youtu.be/NReeKVqpEfo

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Well that is expected. It show the data I send out and then the data from the devices comes and overrides it.

Sadly that did not work to control the devices.

Did your remotes (wall) can control only one device? Or is it able to control all?

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Well that is expected. It show the data I send out and then the data from the devices comes and overrides it.

Sadly that did not work to control the devices.

Did your remotes (wall) can control only one device? Or is it able to control all?

Ah OK, No worries just noticed it as something different but if you expect that to occur then all good :)

The wall panel controls a single system which is the whole house system, it has an indoor unit and outdoor unit

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Can you send me the address list you got in the log?

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I assume you mean the logs in the web ui, i will get some fresh ones now

See here -
logs_esp32-hvac-test_logs (3).txt

Tried to turn on via esp at the following timestamps in the log
ON 23:03:15 - OFF 23:03:20

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Can you update and try again?

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Closer :) It didn't do anything at first but then i tried again

• Power ON turns the system on to AUTO mode
• If i change the MODE to say HEAT then turn it OFF then use the ESP to turn it back ON it goes to AUTO again, looks like your command it to turn it ON but to AUTO mode?
• Power OFF does not appear to work

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Well that are good news and meas controlling that stuff works. Now we need to find out the details.

First I only send a message when power is changed. So the other controls are do nothing. That is why they reset.

Can you tell me to what target temp switched. It should be 18...but I am not sure if the code works here.

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Yes, very good progress. Thank you.
It turns on to the last known set temp, I tried a few different ones on the panel and powered the system back on via the ESP

So now it dosnt go to 19 degrees but it does alway set the operating mode to AUTO

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Could you check again

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Do i reinstall first?

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Do you have discord or anything, wondering if its easier to chat somewhere? Understand if you prefer to keep it here

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Nothing now, and looks to have locked me own

the wall panel shows the temp still but no touch actions are working and a new icon is on the top right saying "CENTRAL" which from what i read is when you have a central controller, like a building management system

I cant turn the AC on or off

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Ok just done a full power reset of the air con without the esp connected and its come back - phew!

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hm ok pew.....I set a property samsung s-net software called individual...It seems this did what you call central.

I reset that property. Can you check what happens now and what target temp you get?

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After an update

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Ah cool yeah that must be what it is, i have the manual and it talks a bit about enabling that for things

ill update now and check

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getting no power on/off control now

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Interesting tho, i powered the AC on via wall panel, then tried to power it off via the ESP and it powered it off, so thats working now? but now power on from the esp

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Can update again an check logs?

If you power off the log should show "value == false". If you power on there should be "value == true".

And what value did the target temperature get?

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No luck sorry. the ESP cant power the AC on or off

if i power the AC on and off in the panel i dont see vale ==

logs https://pastebin.com/Pe22jL0E

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Can you reinstall and try again? I added some more logging.

And you should wait until you saw "known addresses: 00, c8"

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Yep, done and waited for "known addresses: 00, c8", no luck tho, not powering it ac on

logs https://pastebin.com/wcecPPXG

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Can you post your yaml file? You have "registered devices: 00" in your logs. I am not sure, but I think 00 is the outdoor unit.

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Sure, see https://pastebin.com/ydgQQZE7

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Can you change address: "00" to address: "c8" and check again the power button

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that didn't work unfortunately.

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