ESPHome Panasonic Climate WiFi interface

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Anders
Anders
Reply to  michel
December 21, 2021 11:55

I believe it will also work for CZ-TACG1. Dominik’s repo also supports it, the correct wiring to the AC connector needs to to arranged of course. Michel what’s the status on stock and new batches? ๐Ÿ™‚

Niklas
Niklas
December 20, 2021 23:04

I need this in my life!
Will you be making more of these in the future?

Doc
Doc
March 18, 2022 23:46

Hi,
is it possible to send:receive commands via MQTT?

Jo De Wรฉe
Jo De Wรฉe
May 5, 2022 15:39

Werkt deze ook voor saunier duval/bulex ? deze hebben gelijkaardige wifi interface

Stefano
Stefano
June 10, 2022 18:26

Sorry if this is a stupid question, but what if your Panasonic AC unit has both the DNSK-P11 Wifi Module installed AND the CN-CNT connector on the PCB ? I see this in the HZ35XKE and the NZ35VKE units I’m currently looking at. Heck they also have the CN-WLAN connector … I think I’d be looking for Option 5 (or possible Option 3 even if it doesn’t make so much sense :D). Is there a space BOTH for the DNSK-P11 and your ESPHome module inside of the above mentioned AC units ? Thanks :).

Stefano
Stefano
Reply to  michel
June 11, 2022 06:27

Thank you for your reply, Michel. Therefore, in this case, what option would you reccomend ๐Ÿ™‚ ?

Stefano
Stefano
Reply to  michel
June 11, 2022 09:27

Perfect, thanks. Yes, I was of course looking to buy the enclosure as well :). Hope that helps support your project ๐Ÿ˜‰

Ruud
Ruud
June 13, 2022 15:46

I have a Panasonic TZ series: https://www.logicool-ac.com/wp-content/uploads/2020/03/CS-TZ-WKEW-Service-Manual.pdf
The Wifi is built in, and it has the reference ACXA73-28520 and connected to CN-WLAN.

I do see in the PDF it has a CN-CNT port. However I have no clue if this is compatible, and if I should remove the existing wifi module?

Ruud
Ruud
Reply to  michel
June 13, 2022 16:14

Found input from a Z series, similar idea: https://github.com/DomiStyle/esphome-panasonic-ac/issues/32

So indeed seems to work both ways. I guess for a drop-in replacement/addon option 5 is the easiest, correct? Just plug it in and run ESPHome to install.

Ruud
Ruud
Reply to  Ruud
June 13, 2022 16:32

Forgot to check the readme: https://github.com/DomiStyle/esphome-panasonic-ac
So indeed, I’m confident it will work. If you can confirm that option 5 is the easiest I will follow up on email for an order ๐Ÿ™‚ Thanks!

kukacwap
kukacwap
June 13, 2022 21:25

I have 6 Panasonic Fancoil PAW-FC2A-K009IR. I removed the cover to inspect the connectors, and only found two 4 pin connectors which are referred to as CN-Module and also 5 pins without connector in the middle just referred to as CN14. any idea if this would work with it?

https://share.icloud.com/photos/0a5VxSaUdPrkd2FOtccFqczpA
https://share.icloud.com/photos/0fd28Vyq8aYYQH8Djh6TqzryQ

kukacwap
kukacwap
Reply to  kukacwap
June 13, 2022 21:33

One thing I see the module is 5V and this shows 12V on the module connector.

sniker
sniker
June 15, 2022 20:46

Hi Michel,

just recieved my modules and heve one installed but it does not generate the correct hotspot (pana-climate Hotspot in stead of esp32-airc-xx) and teh above mentioned password does not work.

did you change the default config? and if so what is the new password?

sniker
sniker
Reply to  michel
June 15, 2022 23:49

tnx that worked indeed.

now i need to deal with home assistant giving me head ache, it will only detect entities from the most recently added device… ๐Ÿ™ so they work when added but once i add a 2nd and 3rd the first ones stop working.

ow well, somethign for tomorrow to figure out.

Ruud
Ruud
June 17, 2022 16:13

It installed well for two devices. The wifi name and password mentioned in the text are incorrect, you can get them from the .yaml file as mentioned in the comment above.
Plugging in (version 5) was very very easy. I now have them running in HA.
– First add them using USB and install your variant of the software.

I now only need to figure out the swing modes, they are not in line with my panasonic module, but that is software I guess.

Stefano
Stefano
June 21, 2022 15:57

The post just to confirm the quality of the product and how it works.
Installed about 1 week ago and so far I have used 2 modules without any problems, very easy installation and setup.
Any command is received practically instantly and without any problems.

Great job!

daniele
daniele
Reply to  Stefano
July 2, 2022 15:07

It’s all true, wonderfull project. Only mode it seems not to work in my setting is ‘fun-only’. In your?

daniele
daniele
Reply to  michel
July 3, 2022 00:32

ok thanks. In my remote there’re another’s setting, like speed-fun, is it possible to add in esphome?

Vahelduvool
Vahelduvool
July 1, 2022 19:16

Hello! Is there easy conversion to wifi -> Modbus TCIP? Is the interface of panasonic regular RS232?
I am building my bms/scada system where i can use opc, modbus rtu/tcip or using convert 232 to 485.

Paul
Admin
Reply to  Vahelduvool
July 12, 2022 20:26

The interface uses serial signalling at 5V (TTL Level). The software is an esphome application. So if you can write a custom component which includes the translation from modbus to the command set of the ac unit, and get that to work in esphome, or any other environment which supports the ESP32 controller, you can do it.
We will not support that application. We will just support the hardware side….

Maarten
Maarten
July 15, 2022 18:34

Hi Michel,

Thanks again for the quick service!

As you mentioned it works like a charm..

one tiny thing. When i’m viewing the logs in esphome it throws a warning.

[W][panasonic_ac.cz_tacg1:462]: Received unknown mild dry value

Maarten
Maarten
Reply to  michel
July 15, 2022 23:19

You are right. it is the latter one.
enabled the option in the yaml and toggled it on/off in the ui.

herbi1966
herbi1966
July 19, 2022 14:50

Hi,
maybe I’m missing something here:

I have six Panasonic air conditioners with the DNSK-P11 WiFi module.

I already have the ESPthings modules and am exchanging them for the original ones.
I think I followed the instructions here exactly and assigned unique names to the individual modules in their ESPHome Config.

Unfortunately, I always see the same name for the entities in HomeAssistant:

ESPthing’s Panasonic Climate Interface

Shouldn’t they be different, as defined in the ESPHome Config?
The first device works perfectly, from the second there is of course a name conflict.
Unfortunately I can’t get any further, please give me a hint…

Many Thanks

Regards
Herbi

Two different Configs for example:

“kueche” works, “Wozi” not.

config_WoZi.JPG
Last edited 10 months ago by herbi1966
herbi1966
herbi1966
Reply to  michel
July 19, 2022 15:31

The second, working config (the first installed):
(I will learn about the usage of pastebin… ๐Ÿ˜‰

config_kueche.JPG
herbi1966
herbi1966
Reply to  michel
July 19, 2022 15:54

1st and working Config:

substitutions:
 devicename: “esp32-ac-kueche”
 long_devicename: “AC Kรผche”

esphome:
 name: “${devicename}”
 name_add_mac_suffix: false ## use different names/hostnames for each device!
 comment: ${long_devicename}
 platform: ESP32
 board: mhetesp32minikit
 project:
   name: esphome.pana-climate
   version: “220528-1”

external_components:
 source: github://DomiStyle/esphome-panasonic-ac
 components: [panasonic_ac]

wifi:
 ssid: !secret esphome_wifi_ssid
 password: !secret esphome_wifi_password
 ap:
   ssid: “${devicename} Fallback Hotspot”
   password: qwe12345

captive_portal:

web_server:
 port: 80

logger:
 level: DEBUG

api:

ota:

uart:
 tx_pin: GPIO17
 rx_pin: GPIO16
 id: ac_uart
 baud_rate: 9600
 parity: EVEN

status_led:
 pin: GPIO12

climate:
 – platform: panasonic_ac
   type: wlan  # For CZ-TACG1 use type: cnt / For DNSK-P11 use type: wlan
   name: “${long_devicename}”
   vertical_swing_select:
     name: “${long_devicename} Vertical Swing Mode”
   horizontal_swing_select:
     name: “${long_devicename} Horizontal Swing Mode”
   nanoex_switch:
     name: “${long_devicename} NanoeX Switch”
   outside_temperature:
     name: “${long_devicename} Outside Temperature”

2nd Config, not working:

substitutions:
devicename: “ac-wozi”
long_devicename: “AC Wohnzimmer”
 
esphome:
name: “${devicename}”
name_add_mac_suffix: false ## use different names/hostnames for each device!
comment: ${long_devicename}
platform: ESP32
board: mhetesp32minikit
project:
name: esphome.pana-climate
version: “220528-1”
 
external_components:
source: github://DomiStyle/esphome-panasonic-ac
components: [panasonic_ac]
 
wifi:
ssid: !secret esphome_wifi_ssid
password: !secret esphome_wifi_password
ap:
ssid: “${devicename} Fallback Hotspot”
password: qwe12345
 
captive_portal:
 
web_server:
port: 80
 
logger:
level: DEBUG
 
api:
 
ota:
 
uart:
tx_pin: GPIO17
rx_pin: GPIO16
id: ac_uart
baud_rate: 9600
parity: EVEN
 
status_led:
pin: GPIO12
 
climate:
– platform: panasonic_ac
type: wlan # For CZ-TACG1 use type: cnt / For DNSK-P11 use type: wlan
name: “${long_devicename}”
vertical_swing_select:
name: “${long_devicename} Vertical Swing Mode”
horizontal_swing_select:
name: “${long_devicename} Horizontal Swing Mode”
nanoex_switch:
name: “${long_devicename} NanoeX Switch”
outside_temperature:
name: “${long_devicename} Outside Temperature”

herbi1966
herbi1966
Reply to  michel
July 19, 2022 17:42
Dear Michael

you brought me out of desperation with your hints.

Knowing that the configs are correct, I found my mistake in setting up  ESPHome.

I flashed the downloaded bin file again (as written above), briefly de-energized the AC. Then the "ac-kueche" in ESPHome was finally online (was never before...).
After I deleted all wrong entities in homeassistant and restarted the host, everything was perfect. :-)

That was my first project with esphome, unfortunately I'm still a complete beginner here.

Michel, I thank you for your help and your patience!

Many Thanks!
Herbi
Jez
Jez
July 22, 2022 06:18

I have a Panasonic CZ-TACG1. On the CN-CNT connector it has wires on pints 2, 3, 4, and 5. In the photo of your device (above) you have wires on pins 1, 3, 4, 5. What is the difference? Is this because the CZ-TACG1 uses a 12v power source and your device uses 5v?

Jez
Jez
Reply to  michel
July 22, 2022 07:50

I’m not sure what you mean. Are you saying that my CZ-TACG1 doesn’t have a regular CZ-TACG1 interface? I’ve attached a photo showing red (power?) next to the black instead of at the opposite end.

I suspect the aircon provides both 5v and 12v, and my CZ-TACG1 uses the 12v, but your device can use the 5v. When I finish work today, I will test the voltage on the aircon to confirm that both voltage levels are present.

chrome_2Yjys6R86e.png
Jez
Jez
Reply to  michel
July 22, 2022 09:14

Right, that makes sense. And yes, I was able to confirm that both 5v and 12v are present on my aircon, and that only the 12v line is wired on the CZ-TACG1’s cable/plug (red wire, pin 4).

So as long as I connect the ESP32 wifi interface module’s red wire to pin 1 instead of pin 4, everything else stays the same, and it’ll all work.

Thanks for setting my mind at ease!

Filip
Filip
July 22, 2022 11:00

Hi Michel,
I just received my first module, i flashed it with my firmware and it works perfectly.
Now i can control my ac with the original and with your module.I control the ac with GET and POST commands perfectly. You made my day, thank you !!. Now i have to figure out UDP.

Dane
Dane
July 23, 2022 13:35

Do you know if this is compatible with the CZ-CAPWFC1 I believe from this https://github.com/DomiStyle/esphome-panasonic-ac/issues/26 that it is a DNSK-P11 inside this module.

I would love to get a local version of this working.

Nicolas
Nicolas
August 8, 2022 11:14

Hi,

It says; Possibility to connect a DS18B20 . Can you register the room temperature with this and switch the device on/off in accordance with the temperature measured in the DS18B20 ? (So heat pump flaps closed?)

EDIT: Michel: I translated your question this time so other people will be able to read it as well. Please use English on an English website ๐Ÿ˜‰

Nicolas
Nicolas
Reply to  Nicolas
August 19, 2022 08:18

Hello,

ok i will order one. So i only have to order DS18B20 and option 4?

thx

Jez
Jez
August 15, 2022 05:25

Hi. I received my device last Friday, printed a case, uploaded new firmware, connected it to my wifi, powered off my aircon, and plugged the device in to the header for the CZ-TACG1 interface. Once power was restored to the aircon, the device appeared on my wifi, showed up in Home Assistant, and all seemed to be working perfectly.

Overall, I’m really quite pleased, so thankyou very much for your work on this. However, I have a couple of issues I’m hoping someone can advise me on.

Firstly, the current temperature (as displayed on the web interface) seems to fluctuate from about 21C to 29C and back again, around once per 10 minutes.

I note that the ESPhome yaml you provided has an entry for current_temperature_sensor commented out:

 #current_temperature_sensor: temp

with a note to uncomment if the current temperature doesn’t show up. The current temperature IS showing up, so I don’t think I should uncomment. It’s just that the temp is wrong, and not even stable. Is there something wrong with my device or my aircon that the temperature if fluctuating like that? Or a change to the code I can implement to fix this? Debugging options to help diagnose?

The second issue is that there is no entity for current temperature. On the official CZ-TACG1 device connected to Home Assistant using the Comfort Cloud integration, the current temperature shows as an entity. I’m not sure if your board is providing feature-parity with the Panasonic alternative, and there’s something wrong, or if I have to setup a sensor myself, to get its value from the current_temperature attribute.

I’d be grateful for any help you can offer.

Jez
Jez
Reply to  michel
August 16, 2022 02:10

Thanks for your answer Michel. I think the problem is fixed, so just for closure, and to help anyone else with the same symptoms:

Last night, the ESPthings module stopped responding on the network. The aircon continued to work, but I couldn’t ping the module’s static IP. This morning, rather than disassemble the aircon to reset the module, I just turned the aircon off and on at the mains switch.

Since power cycling, everything is working again. And as a bonus, the “current temperature” had settled down and is now oscillating by a 1C margin around the set temperature. So the problem I had is now fixed!

The attached image shows a graph of the temp being reported by the aircon, with the wild fluctuations before the outage, then settling to normal afterwards.

I’m still a bit concerned that the ESP module stopped responding. This could just be my wifi network (I have a lot of devices and I might be pushing the limit of my mesh wifi system).

chrome_KWOgDbFJN6.png
Marnix
Marnix
Reply to  michel
November 7, 2022 01:34

What does overruling exactly mean? I primarily want to use my Panasonic for heating. Since my unit is close to the ceiling the temperature around the airco quickly goes up, after which the unit goes idle. After the air is mixed again it starts again. I would rather have the unit itself use an external temperature meter and continue for longer runs. The CZ-RTC5B can do this.
https://youtu.be/HlKa3Lb_0fI?t=77

or is it just that it will report the temperature back so it looks nicer in Home assistant?

external_controller.jpg
juergen
juergen
Reply to  michel
December 15, 2022 07:08

Is there more details available on the temperature sensor option?

juergen
juergen
Reply to  michel
December 16, 2022 16:33

I plan to get 5 indoor units and I would like to use a temperatur reading from a room thermostat as the current room temperatur. I have seen that you also offer boards with an extern temp sensor using CN-CNT connection. Is there a way to transfer a value i.e. through MQTT to the board and use this value as tem sensor for the indoor unit?

Roger
Roger
August 18, 2022 09:01

Just dropping a message to say that this seems to work wonderfull. Setting up 2 modules was little tricky, I had to add manual ip to the yaml files in order to get things working properly.

Alfons
Alfons
August 18, 2022 23:42

Hi Michel, I recently received my unit and once installed, works nicely. (CZ-TACG1)
I just wanted to ask about the entities available in HA for automation purposes. According to the Domi package, “The climate entity and all sensors and switches are now automatically exposed to Home Assistant” in the latest version.

If someone could give me some help about, would be appreciated. It’s my first experience with HA and all this science and still know a very little ..

Thank you very much for your work!

Alfons
Alfons
Reply to  michel
August 19, 2022 13:23

All right….I’ve been searching but the fact is that I cannot find any entities published for the device. Probably I must be doing something wrong…. Thanks in advance

esphome.png
Brian Quaade
Brian Quaade
August 28, 2022 21:07

Hi
On My heating pump I Can set 3 temperatures hot water, floor heating and general heating.
Is this supported?

5CDF7F50-A04F-483F-9434-67562FC44B54.png
Alexander
Alexander
September 7, 2022 11:05

Hello Michel,
I’m trying to update the interface via OTA but it’s failed. The error message is: Update failed. Wrong magic byte.

Any idea what I’m doing wrong.

I build the fw with homeassistant and your config from above. Just changed the name and long device_name

Thx
Alexander

Alexander
Alexander
Reply to  michel
September 7, 2022 13:51

Still the same failure

Alexander
Alexander
Reply to  michel
September 13, 2022 21:17

Ok, I was able to flash with ESPHome CLI. It works well. Great job!
Is there a posibility to deactivate the led?

Edvin Bakker
Edvin Bakker
Reply to  michel
December 25, 2022 01:35

Hi, i also would like to turn off the status led, but i am not sure how to turn it into a binary light.
Any detailed description on how to do this?
Thanks in advance.

Edvin Bakker
Edvin Bakker
Reply to  michel
December 25, 2022 15:31

Thanks!
For others that would like the recipe, change the .yaml file to this:

# revisions below 220722-01 use GPIO12
#status_led:
#  pin: GPIO13

# Make a switch to turn off the status led
light:
  – platform: binary
    name: “Status led”
    output: status_led_output

output:
  – id: status_led_output
    platform: gpio
    pin: GPIO13
    inverted: True

Marnix
Marnix
Reply to  Alexander
November 25, 2022 16:54

I had the same issue. Choosing legacy format solved it.

Hans
Hans
September 9, 2022 22:16

Hallo Michel, Ik heb de eerste module in werking. Mooi product!
Ik heb een aangepaste Esphome firmware erop gezet met mqtt ingeschakeld en de api uitgeschakeld. Ik krijg nu keurig de waarden van de AC unit in mqtt.
Wat ik alleen niet door hem / kan vinden is hoe commando’s naar de ac unit te sturen. Moet ik daarvoor zelf on_message topics configureren? Zo ja, zou je daarvan een voorbeeldje kunnen geven van instellen fansnelheid of zoiets? Of mij anders in de goede richting wijzen?
Alvast mijn dank.

Nicolas
Nicolas
September 16, 2022 11:22

Hello,

i’ve received the module well. Was possible to connect to the ESPthngs Panasonic interface. After that, i was possible to choose my home network, fill in my password. But now he’s blinking green for a while. Can’t find him in Home Assistant app.
Can i do a factory reset?

thx

Nicolas
Nicolas
Reply to  michel
September 16, 2022 15:14

If we look in the browser, no esphome webinterface. I guess we used a wrong password.

Kaj
Kaj
September 23, 2022 09:51

Hi where to order this panasonic esp32 module for replace the CZ-TACG1 I use.

Edvin Bakker
Edvin Bakker
September 23, 2022 19:41

Hi, this is just great stuff!
Have it up and running now and managed to make the indoor tempate sensor ๐Ÿ™‚
2 questions:
-I cant see the NanoeX entity, is this setup as standard, or do i need to edit ESPconfig?
-How do i make the config file with ESPhome? Do i need some sort of editor?

Best regards Ed

Michael
Michael
September 24, 2022 14:11

Hi there,
I am trying to compile the source code in ESPHome version 2022.3.1, which is installed in Home Assistant ver. 2022.9.6, Supervisor 2022.09.1 and Frontend 20220907.2 – latest.
I got board pcb_version: “220722-1”.
I used this source code. As a result, the compilation failed.

I wonder If I simply overlooked or ignored something. Thank you.
Michael

Michael
Michael
Reply to  michel
September 24, 2022 14:29

In secrets I have defined (it also normally complaining when there is no coresponding record) these records:
wifi_ssid:
wifi_password:
esphome_api_password:
esphome_ota_password:

I used option: Install/Manual Download/Modern Format

Michael
Michael
Reply to  michel
September 26, 2022 12:03

Hi Michel,
thank you for your reply and test. For others who might be in a similar situation, I uninstall ESPHome addon from my Home Assistant, install it again and I was able to compile code without any further changes. OTA uploaded firmware successfully.
There is one thing I am not sure why is happening, see the log. I could see quite a bit of [W] Warnings :

[19:39:53][W][panasonic_ac.cz_tacg1:259]: Dropping invalid packet (length)
[19:39:58][W][panasonic_ac.cz_tacg1:259]: Dropping invalid packet (length)
[19:40:03][W][panasonic_ac.cz_tacg1:259]: Dropping invalid packet (length)
[19:40:08][W][panasonic_ac.cz_tacg1:259]: Dropping invalid packet (length)
[19:40:13][W][panasonic_ac.cz_tacg1:259]: Dropping invalid packet (length)
[19:40:18][W][panasonic_ac.cz_tacg1:259]: Dropping invalid packet (length)

Should I be concerned? Thank you.

James
James
September 27, 2022 07:13

Hi Michel, just wanted to say a huge thank you for this project – I’ve had my CZ-TACG1 replacements for a few weeks now and after some fiddling around (my first time using ESPHome) they’ve been working flawlessly!

Kaj
Kaj
October 16, 2022 17:31

Hi Michel

First thank you for very fast delivery super, I have now tryed to get this to work and have panasonic online but only problem is that it say “This device has no entities”
maybe some tips what to do.

Regardes Kaj

no entities.jpg
Kaj
Kaj
Reply to  michel
October 17, 2022 08:29

Hi Michel

I solved the mystery (missed in setup to put whole command line right, copy/paste but need to check after paste)

Thank you for a very useful item.

Lars
Lars
November 16, 2022 10:29

Hi!

This is exactly what I’m looking for and have just ordered a kit! When can you expect another batch with custome modules to arrive?

If it will take several months, would you consider to share only the circuit diagram so I can put together my own quick-and-dirty solution?

Ps.. This is really a great solution, why no sell it on eBay or Amazon!

EspPanaUser
EspPanaUser
December 3, 2022 12:28

Hi all,

thanks for the great work!

I have one question: How can I select the nanoex mode for the panasonic etherea indoor units? I cant find a nanoex modu in the esphome software.

Mika Lindroos
Mika Lindroos
December 9, 2022 15:36

Been lovin this for awhile now. Works very well, thanks. However the current temperature reading is showing higher than it logically should. Is there a way to add negative offset of 2 degrees somehow?

Mika Lindroos
Mika Lindroos
Reply to  michel
December 13, 2022 10:49

I know. the AC unit and your ESP unit is as should but ONLY the reading is somehow showing higher than it should… so… can you tell me if there is a documentation somewhere or something?

Thanks

daniele
daniele
December 26, 2022 08:44

Hi Michel
I’m reading all the possible documents, but I don’t understand if the panasonic Etherea Series CS-Z25XKEW unit can be compatible with ESPhome.
https://www.manualslib.com/manual/2018110/Panasonic-Cs-Z20xkew.html?page=1#manual
Do you have any idea if I will be able to make it work locally with your project.
Or do you have to suggest a panasonic model that is definitely compatible?
thanks for the reply.

daniele
daniele
Reply to  michel
December 26, 2022 09:58

Thank you so much, waiting patiently for the next esphome batch production.

Sincerely happy new year!

daniele
daniele
Reply to  michel
December 30, 2022 19:05

Hi Michel,

I received my Panasonic Etherea Series CS-Z25 and you were right, this unit has the CN-CNT.

I have to disassemble the built-in wifi module (which I don’t see, it will be below) https://nextcalz.duckdns.org:444/s/sbPpgpPdjcP2DdJ

or, can I just connect the ESPhome to the CN-CNT connector and that’s it?

Thanks

Filippo
Filippo
Reply to  daniele
December 31, 2022 19:26

Ciao Daniele,
I’ve a CS-Z25VKEW, and the DNSK-P11 replacement is not working. I suggest you to connect the module with the CN-CNT connector such that you don’t even have to dismount all the air condition.
In that case, as Michel was suggesting, you can leave the original DNSK-P11 connected and keep the Panasonic cloud working.

daniele
daniele
Reply to  Filippo
January 1, 2023 08:49

Thank you Filippo for your experience, I reed your posts. Michel says to remove the original module anyway. My Panasonic model is CS-Z25(X)KEW, I don’t know what is the difference between X and V. Anyway I try to get to the module if it’s not too hard.

Happy New Year.

daniele
daniele
Reply to  michel
January 1, 2023 20:45

ah ok, if i don’t remove the original module there is no conflict, the esphome module will work without problem. perfect so I don’t damage, thanks so much.

Filippo
Filippo
December 28, 2022 22:08

Hi Michel, thank you very much for your project.
Unfortunately I’m having a few troubles.
I got a DNSK-P11 replacement and I flashed it through USB with the ESPHome Add-on for HomeAssistant.
When connecting it to the aircondition unit, I inverted the polarity of the connector. I turned it on, and I noticed it was inverted. So I swaped it.

Now the device can connect to the wifi, the signal is strong, I can open the webinterface, I can see the entities in HomeAssistant, but I don’t receive any feedback from the airconditon.
If I try to turn it on, or change the setpoint, it doesn’t do anything.
The “wifi” led on the aicondition unit is blinking, while with the original DNSK-P11 module it was always ON.
The aircondition is working correctly using the infrared remote.

In the device log it just keep posting, twice per second:
22:05:47 [W] [panasonic_ac.cz_tacg1:259] Dropping invalid packet (length)
and nothing else.
I tried to reflash it OTA a several times, and everytimes it says it flashed successfully, but the warnings keep coming out, and the device is still not working.
Any advice?
Maybe I burned something with the connector swapping?

Last edited 5 months ago by Filippo
Filippo
Filippo
Reply to  michel
December 28, 2022 23:11

mmhhh, maybe I’m missing something: It’s very easy to invert the connector, and it fits quite well even without the notch.
[for people looking the comment: DO NOT CONNECT like this]

So, I will now take a new module.
I copy and paste your yaml configuration changing just these three things:

devicenamelong_devicenametype: wlan (instead of cnt)right?

I noticed the mistake of leaving “cnt” from my previous comment, now it is more verbous with more errors in the logs.

[22:27:18][D][panasonic_ac.dnskp11:721]: Resending previous packet

[22:27:18][D][panasonic_ac.dnskp11:280]: Dropping invalid packet (checksum)

[22:27:18][W][panasonic_ac.dnskp11:249]: Dropping invalid packet (header)

and after 19 retrials it says

[22:27:18][E][component:113]: Component panasonic_ac.climate was marked as failed.

Another info: duting the flashing I get just one warning that is

WARNING Can’t connect to ESPHome API for panasonic-sud.local: Error resolving IP address: [Errno -2] Name or service not known

But a few lines before it says

INFO Resolving IP address of panasonic-sud.local

INFO -> 192.168.0.126

So it should be able to resolve the IP address…

Thanksfor your patience
F.

Last edited 5 months ago by Filippo
Filippo
Filippo
Reply to  michel
December 28, 2022 23:20

[for people looking the comment: DO NOT CONNECT like this]

ESP32.jpg
Filippo
Filippo
Reply to  michel
December 29, 2022 00:34

ok, then if you can, delete my comment.

Filippo
Filippo
Reply to  michel
December 29, 2022 00:41

I did reinstall back the original DNSK-P11 module, and it works fine with the cloud. The “wifi” led on the aircondinitonin unit is steady on.
So I can exclude to have damaged the air condition.

I flashed a second module, and it’s still not working.
It doesn’t give me the warnings on the log though, so this could be a step forward.
But anything I do from the interface is just not applied by the airconditioning.

This is the configuration I used:

substitutions:
  devicename: "panasonic-ovest"
  long_devicename: "Climatizzatore Camera OVEST"
  pcb_version: "220722-1"
  
esphome:
  name: "${devicename}"
  name_add_mac_suffix: false ## if 'false' use different names/hostnames for each device!
  comment: "${long_devicename} ${pcb_version}"
  platform: ESP32
  board: mhetesp32minikit
  project:
    name: "esphome.pana-climate"
    version: "${pcb_version}"


external_components:
  source: github://DomiStyle/esphome-panasonic-ac
  components: [panasonic_ac]
  
wifi:
  ssid: !secret esphome_wifi_ssid
  password: !secret esphome_wifi_password
  ap:
    ssid: "${devicename} Hotspot"
    password: !secret esphome_ap_password
    
captive_portal:
    
web_server:
  port: 80
  
logger:
  level: DEBUG


api:


ota:


uart:
  tx_pin: GPIO17
  rx_pin: GPIO16
  id: ac_uart
  baud_rate: 9600
  parity: EVEN
  
## revisions below 220722-01 use GPIO12
status_led:
  pin: GPIO13
  
## For revisions from 220722-01 and higer the optional temperature sensor is available.
## DS18B20 1-wire Temperature Sensor
#dallas:
#  - pin: GPIO18
#sensor:
#  - platform: dallas
#    # Check the dallas sensor address in the log file
#    # For more info: https://esphome.io/components/sensor/dallas.html
#    address: 0x540000001524be28
#    name: "$long_devicename Temperature"
#    id: temp
  
switch:
  - platform: restart
    name: "$long_devicename Restart"
  
climate:
  - platform: panasonic_ac
    type: wlan   # For CZ-TACG1 use type: cnt / For DNSK-P11 use type: wlan
    name: "${long_devicename}"
    vertical_swing_select:
      name: "${long_devicename} Vertical Swing Mode"
    outside_temperature:
      name: "${long_devicename} Outside Temperature"
## If the ac does not report a current temperature (CZ-TACG1 only) uncomment 
## the line below and point to the appropriate sensor
#
#   current_temperature_sensor: temp
#
## Since Panasonic ACs support different features you can comment out the lines below if applicable:
#
#   eco_switch:
#     name: Panasonic AC Eco Switch
#    nanoex_switch:
#      name: "${long_devicename} NanoeX Switch"
#   mild_dry_switch:
#     name: Panasonic AC Mild Dry Switch
#   econavi_switch:
#     name: Econavi switch
#    current_power_consumption:
#      name: "${long_devicename} Power Consumption"

Any Idea on what could I be missing?
I’m not even trying to control it with homeassistant, just with the webserver to check if the module is responding, and it doesn’t seem to.

Filippo
Filippo
Reply to  michel
December 31, 2022 19:23

Hi Michel,
Today I tried to connect it to the CN-CNT connector, leaving the original DNSK-P11 module installed, and it’s now working!!
So, probably, as in the case of the CZ-CAPWFC1 that you mentioned in the comments, my model might have a different version of DNSK-P11, and could have some troubles in the handshake phase.
For future reference: I’ve a CS-Z25VKEW, with this model use the CN-CNT connector instead of the DNSK-P11 option.

Daniel Osborne
Daniel Osborne
January 15, 2023 06:44

Hi Michel,

I would love to get two of these, but it looks like I’ve just missed out based on last update.

Are you still taking reservations? Or is the an alternative way to manufacture, given the pcb source files won’t be released?

Cheers,
Dan.

Jez
Jez
Reply to  Daniel Osborne
January 25, 2023 23:28

You can make one yourself from an ESP32/ESP8266, a 5V/3.3V logic converter, a JST connector plug (or maybe just some single wires with female DuPont connectors) and some wires. I bought all the parts to do this, but decided I didn’t have the time to put it together, and the price to buy it ready to use was hard to argue. Here’s the info about making your own: https://github.com/DomiStyle/esphome-panasonic-ac

Juergen
Juergen
January 25, 2023 15:13

Very sad to hear that there will not be additional devices for sale. I would purchase another 8 units if there would be another lot to buy from.

Jez
Jez
January 31, 2023 07:53

I used my Panasonic wifi interface module for some time, and it worked just fine. However, after moving house I no longer need it, so I’m happy to sell it for the cost of postage from Australia. It’s in a 3D printed case and has the cable soldered to the board ready to connect to the aircon’s CN-CNT socket. Is anyone interested?

Kenneth S.
Kenneth S.
Reply to  Jez
January 31, 2023 11:31

Hi Jez,

Yes I’m definitely interested!

I was lurking here and finally chose to have a panasonic AC compatible with CZ-TACG1 with the plan of buying this awesome interface module. My home has just finished renovation but it’s sad that Michel is not producing a new batch anymore. Now you’ll be my savior!

Please contact me at espthings@ks94.anonaddy.me (I’m willing to share my email address to you, just don’t want to make it public here so I’m using an AnonAddy alias)

Cheers,
Kenneth

Jez
Jez
Reply to  Kenneth S.
February 1, 2023 00:21

Sold! I’ll email you soon Kenneth.

Edward
Edward
March 28, 2023 09:23

Hi Michel,

after months of trouble free function I had to switch off power at my home for some other reason.
Back on power one of my AC appeared after a few minutes in HA, but the other ESP (same model) seems not to boot. Even the fallback hotspot isn’t there.
Any hint what to do?

Thanks
Edward

Edward
Edward
Reply to  michel
April 5, 2023 20:28

Looks like a power supply problem.

With USB the ESP is booting instantly.

Only when powering on the AC mains the ESP hangs.

Plugging out an in the CN-CNT with AC main on also works. Seems to be a brown-out.

Any idea?

 

Cheers

Edward

Paul
Admin
Reply to  Edward
April 6, 2023 21:43

Hi Edward,

The only thing I can imagine causing this, is the 470ยตF capacitor on the PCB. Not sure why after a power outage it failed, since it should be able to survive that for sure!

If you have a soldering iron and a capacitor of 470 – 1000ยตF (do not go much larger, since the voltage regulator might not like that during power up!) with a voltage rating of at least 6.3V (I would recommend up to 25V, due to physical size), you can try to solder that parallel over the capacitor. The 470ยตF capacitor is the large rectangular one next to the header connections. (Bottom right, with the ESP32 module upwards)

The positive of the capacitor needs to be towards the center of the PCB, and the negative towards the outside of the PCB.

Best thing to do would be trying to remove the old capacitor, but if that is not easy for you, you can start with leaving it in place.

If you run into issues, contact me at paul@espthings.io .

Thanks

Paul

Edward
Edward
Reply to  Paul
April 10, 2023 15:02

Hoi Paul

Thanks for your answer, I’ll try. But first I excange the board between my two AC to check, if it is a problem with the AC power unit.

Edward

herbi1966
herbi1966
Reply to  Edward
April 29, 2023 11:15

I have a recurring problem, especially when I do an ESP update, but sometimes out of the blue.
After flashing, I always get error messages like this (I copied these from a post above):
 
[D][panasonic_ac.dnskp11:721]: Resending previous packet
[D][panasonic_ac.dnskp11:280]: Dropping invalid packet (checksum)
[W][panasonic_ac.dnskp11:249]: Dropping invalid packet (header)
 
and after xx retrials
 
[E][component:113]: Component panasonic_ac.climate was marked as failed.
 
But: the message “Start in safe mode after xx attempts” (roughly speaking) gives me something to think about. Apparently the ESP then works in this “safe mode” and I have access again via the home assistant.
 
Maybe the error messages and this “Save Mode” have a connection?
 
Maybe you can change something in the code to enforce this “safe mode”? It seems to be working.
 
Thank you and best regards
Herbi

Last edited 1 month ago by herbi1966
herbi1966
herbi1966
Reply to  michel
May 11, 2023 19:33

Hi,
I think there are no options active which are not supported. Just vertical_swing_select, horizontal_swing_select, nanoex_switch, outside_temperature.
Deactivating all of them made no change.

On DomiStyle’s Github site (esphome-panasonic-ac) I saw that there is an issue marked as bug concerning ESPHOME 2023.4.x – maybe this issue, or another change in the code could be the cause?

Thank you very much!

Lars
Lars
May 9, 2023 16:57

I’m planning to connect DS18B20 temp sensor but I’m not sure where on the board to connect it to. Is there circuit diagram or PCB schematic and which is the recommended GPIO port to use that has a pin out on the board?

Thanks in advance!

Lars
Lars
Reply to  michel
May 9, 2023 18:48

It’s pcb board revision 220722-1 so I guess it’s connected to GPIO18? Btw, do I need a pull-up resistor or is that fixed on the board as well?

Last edited 20 days ago by Lars
Lars
Lars
Reply to  michel
May 9, 2023 20:02

Thank you so much and thumbs up for PCB v220722-1! ๐Ÿ˜€

Last edited 20 days ago by Lars
herbi1966
herbi1966
May 17, 2023 18:42

Hi,

7x DNSK-P11 replacementmodules for sale ๐Ÿ™‚

PM me if you’re interested.

Regards
Herbi

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