Samsung EHS AE160JNYDGHE/AE120JXEDGHEU

[sonics007]

Hi guys, I need help. I have a Samsung EHS AE160JNYDGHE/AE120JXEDGHEU heat pump and the basic YAML code I have can only read the hot water temperature and turn it on/off. I wanted to ask if anyone have a modified YAML code that would allow more control functions.

[brazoayeye]

I forked the repo time ago, I added a custom climate (described in the example) - only for NASA - to control heating and DWH
https://github.com/brazoayeye/esphome_samsung_ac

My code started from an older base, but it's working well for me so i don't touch it.
Maybe there is a smarter way to add a climate from the yaml but i'm not very skilled

[sonics007]

what version of esphome have you used? with latest version its show me errors like:

• [custom_climate] is an invalid option for [devices].
• [power_consumption] is an invalid option for [devices].
• [energy_produced] is an invalid option for [devices]
• [energy_consumption] is an invalid option for [devices]
• how to sort it?

[brazoayeye]

Hello,

I failed in the example because the git repo was the lanwin one.
I updated the example with sensors as I have at home. I hardly prefer to write addresses in the yaml instead of having them hardcoded in the py script, so everyone can test if different parameters works in different applications.

Different addresses can be found here > https://wiki.myehs.eu/wiki/NASA_Protocol
You can check logs to understand if different messages appears on your network.

[sonics007]

Hi, thank you for your respond,
I tried your code, but custom_climate: show me
[custom_climate] is an invalid option for [devices]. Did you mean [climate]. what version of esphome did you using by flashing

[brazoayeye]

I used latest espHome.

Are you sure you are using

• source: github://brazoayeye/esphome_samsung_ac@main
  ?

Please post the entire yaml so I can check

[sonics007]

clima_mstack _new.txt this your code
clima_m5stack.yaml.txt my old working

[brazoayeye]

when I try to download clima_mstack _new.txt I have an error.

I'm intrested in the yaml part with github://brazoayeye/esphome_samsung_ac@main

external_components:
  - source: github://brazoayeye/esphome_samsung_ac@main
    components: [samsung_ac]

Have you tried to clean build files?

Or maybe redownload adding refresh option

external_components:
  - source: github://brazoayeye/esphome_samsung_ac@main
    components: [samsung_ac]
    refresh: 0s

[sonics007]

@brazoayeye Hi, sorry for late answer,
so cleannnnn buildn helped. 👍 .

but how can i set up that heat pump will show me power consuption? and here https://wiki.myehs.eu/wiki/NASA_Protocol what can I find? dont understand it. im so newbe im esphome.
Anyway thank you for your time and help.

[brazoayeye]

That document contains a list of all (known) messages devices can exchange using the nasa protocol, but at the end only few are used in a real setup because it depends on the device mounted sensors/features.

Regarding consumption double check you have inserted it in the right device:
consumption and voltages go to the external addresses
power production goes to the internal unit

For example, in my case:
(check the two - address: "x0.00.00" rows

  devices:
    - address: "20.00.00" #internal
      custom_climate:
        - name: "Water heater"
          [skipped part]

        - name: "Heating"
          [skipped part]

      custom_sensor:
        - name: produced energy
          message: 0x4427
          device_class: energy
          state_class: total_increasing
          unit_of_measurement: kWh

        
    - address: "10.00.00" # external unit
      custom_sensor:
        - name: External temperature
          message: 0x8204
          device_class: temperature
          state_class: measurement
          unit_of_measurement: "°C"
          filters:
            - multiply: 0.1
          accuracy_decimals: 1
        - name: Power consumption
          message: 0x8413
          device_class: power
          state_class: measurement
          unit_of_measurement: W
        - name: Energy consumption
          message: 0x8414
          device_class: energy
          state_class: total_increasing
          unit_of_measurement: kWh
          accuracy_decimals: 1
          filters:
            - multiply: 0.001
        - name: Heat Pump Voltage
          message: 0x24fc
          device_class: voltage
          state_class: measurement
          unit_of_measurement: V
        - name: Compressor Frequency
          message: 0x8238
          device_class: frequency
          state_class: measurement
          unit_of_measurement: Hz
          accuracy_decimals: 1
        - name: Target Compressor Frequency
          message: 0x8237
          device_class: frequency
          state_class: measurement
          unit_of_measurement: Hz
          accuracy_decimals: 1
        - name: Fan Speed
          message: 0x823D
          state_class: measurement
          unit_of_measurement: RPM
          accuracy_decimals: 1

[Beormund]

I forked the repo time ago, I added a custom climate (described in the example) - only for NASA - to control heating and DWH
https://github.com/brazoayeye/esphome_samsung_ac

My code started from an older base, but it's working well for me so i don't touch it.
Maybe there is a smarter way to add a climate from the yaml but i'm not very skilled

I've had the most success with your fork with my heat pump but I cannot get commands to work (so basically read-only). I tried to merge in PR #93 but there are just too many merge conflicts. Its all a bit of a mess.

[brazoayeye]

I've never merged anything, but my modifications (at least useful modifications for custom climate) are quite simple and isolated in one file. I can repropose them starting from main branch so I can also avoid useless feature. But I don't have time right now, probably you'll have to wait a couple of weeks

[omerfaruk-aran]

Hi @sonics007 and @brazoayeye,

Thanks for the detailed discussion and shared examples. Regarding the power consumption and energy-related features, we’ve implemented and tested the following YAML configuration for NASA protocol-based Samsung units. It would be great if you could test this configuration and confirm if it works with your device:

    - address: "10.00.00"
      outdoor_temperature:
        name: temperature
      
      error_code:
        name: error_code
        
      outdoor_instantaneous_power:
        name: outdoor_instantaneous_power

      outdoor_cumulative_energy:
        name: outdoor_cumulative_energy

      outdoor_current:
        name: outdoor_current

      outdoor_voltage:
        name: outdoor_voltage

Additionally, for the custom presets you mentioned, could you confirm if the existing preset modes (like ECO, BOOST, etc.) are functioning as expected? If not, could you share detailed logs so we can better understand the behavior and offer suggestions?

If any functionality from the forked project is stable and adds value (e.g., additional sensors, better climate controls), we strongly encourage submitting a PR to the main repository. This would allow other users to benefit from the improvements and ensure community feedback.

Looking forward to your feedback and detailed test results!

Best regards,

[brazoayeye]

Have a look to #213 (reply in thread) solution with lambda:

      custom_sensor:
        - name: Water Law Target
          message: 0x4248
          device_class: temperature
          state_class: measurement
          unit_of_measurement: C
          accuracy_decimals: 1
          filters:
            - lambda: |-
                if(x > 6000) return (x - 65535)*0.1;
                return x * 0.1;

The problem is caused by an uint16_t underflow when temperature are read under 0. Can you test if you have the same problem with

external_components:
  - source: github://omerfaruk-aran/esphome_samsung_hvac_bus@main

To test it you have do remove the custom climate part from the yaml

[brazoayeye]

@sonics007 please test also

external_components:
  - source: github://brazoayeye/esphome_samsung_ac@testSignedInt
    components: [samsung_ac]
    refresh: 0s

I modified the protocol to handle all numbers >32k as signed int (value - 65535) on reading and writing. Remove lambda check with this release

[sonics007]

@brazoayeye Hi sorry for late answers, last few week i was very sick it was maybe f*cking covid .I really wasn't in the mood to work on this. Now i feel better so i tested it. For me is this fork github://brazoayeye/esphome_samsung_ac@testSignedInt working great. This github://omerfaruk-aran/esphome_samsung_hvac_bus@main was not working for me because i removed custome climate like you said . there was nothing to set up like heating temeprature and water temp.
So i`m using your testing fork for now but still cant see power consumption and its suck. Could we fix it some how? also is there any chance to see in esp also awater pressure in heating system?
For now thank you for your help and i wish you merry christmas

[stresserini]

@brazoayeye Hi
I would also like to know how to get the water pressure information.
the value is displayed on the controller display, but I cannot find the corresponding code.
Has anyone found it?
thanks
Mark

[brazoayeye]

Idk, try to log a lot of data and check if you can find the value (What do you see in the app? try x*10 formula)

[Beormund]

@brazoayeye - I will also give #111 (comment) a try as well. But how would I implement a simple on/off switch for heating zone (NASA var 4000)? My heating zone temperature is controlled by thermostat (not heat pump) so doesn't make sense to have a climate control as temp is set via stats. DHW temperature is set via MIM-E03CN controller (and MIM-H04EN wifi) so does make sense to have a climate control.

[smartminjos]

@brazoayeye

is there any option to be able to set the room temperature by 0.5degree? Currently I can do it for water heating but not for heating like on wall controller.

thx Daniel

[smartminjos]

@brazoayeye

hi, all fixed now. my yaml attched.

1. i can setu room temperature by 0.5degree
2. offset is fixed -5 5 degree

Many thanks

20250116_a_tepelko.txt

[smartminjos]

one more question, should i use this line now ?

• source: github://brazoayeye/esphome_samsung_ac@testSignedInt
  or
• source: github://brazoayeye/esphome_samsung_ac@main

[brazoayeye]

The first one was a branch made to test the modification for negative numbers without creating problem on other people using the base version.
I just merged the modification to the main branch so it's better to use main one (remember refresh: 0s to be sure to download latest version)

[smartminjos]

perfect, many thanks.

Daniel

[smartminjos]

@brazoayeye do you have any idea what is the device with ff.ff.ff. ?

[brazoayeye]

idk, how many devices do you have in the network?
With debug enabled can you see if the device send or recive messages?

[smartminjos]

as far as i know i have outdoor and indoor unit for heatpump. No AC or other unit..... Which debug setup shoud i set ?

currently i have this setup:
debug:
direction: BOTH
dummy_receiver: false
after:
delimiter: "\n"
sequence:
- lambda: UARTDebug::log_string(direction, bytes);

[brazoayeye]

debug_log_messages: true

So no others thermostats or wifi modules?

[smartminjos]

it`s funny, it is gone now :)))) but to answer to you, no i do not have any wifi modules or special thermostat ..... donno what was it ....