FujitsuAC Integration

Hey @Benas, first up, thanks for your work on this!

I have a ducted system ARTH45KHTA that is currently using a UTY-NXT-BOX | anywair wifi adaptor II (https://www.sparkydirect.com.au/p/fujitsu-uty-nxt-box-lifestyle-range-anywair-wi-fi-adaptor-ii). It is a sensibo device so has some HA integrations, but it is cloud based which I don't like and it doesn't see the zone controls that I can access from my wired controlled (UTY-RNRT).

The wifi adaptor is plugged into one of the UART ports on the indoor unit control board via this cable (https://www.sparkydirect.com.au/p/fujitsu-uty-nxt-cab-anywair-wi-fi-adaptor-ii-cable-for-non-kmtc-td-models-lifestyle-range).

While waiting on some logic level converters, thought I would set up an esp32-wroom as a sniffer. I tried your your example sniffer code but hit some snags. Namely, it looks like your main code has moved on a bit, with the sniffer example calling controllerBuffer.setup() and acBuffer.setup() which no longer seem to exist in the Buffer code.

I tried my luck modifing, but it exceeds my novice abilities. Wondering if it would be at all possible to update the sniffer?

Was also wondering if it might be easier to have the esp run a persistent access point that can show the logs instead of adding the extra step of connecting to another wifi and mqtt?

Hi, since library is quite stable now, at some point I abandoned updating sniffer code. Try checkout 1.0.0 and then compile it.
But I think you can try just upload current code and you have chances it will work as is. Just compare your pinout and voltages, but as it is CN65, it should be the same

No worries, will compile 1.0.0.

I am hopeful the code will work as is too, the only thing I am a bit unsure will be whether it sees the damper/zone changes.

There is no any features related with zones yet. How does they work in anywair? Can you add some screenshots or something?
Damper - is it a louvre or something else?

Edit: oh, I seen you wrote there are not zones in anywair also.

With 1.3.14 I added swing modes to the climate entity

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Are you planning to move some more of the functions into the climate card as well? I believe most if not all of them can be. The dongles have been flawless now since the mqtt fix you did in the earlier version.

Yes, I will move them. It's nice to hear :slight_smile:

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This is awesome; great work! Is there a chance it would work with a big air handler like ARU36RGLX (controlled by wall unit UTY-URNRUZ5) or is it only for mini-splits?

ARU24RGLX is tested and working. Yours is the same, just more powerful.

Hello, everyone.

I have a Fuji (not Fujitsu) ducted air conditioner, model ACF24UI-LM, with a wall-mounted control panel like the one attached to this message.

I wanted to know if it’s possible to automate its operation. I’ve seen posts with control panels just like mine, but I’m not sure if my model is compatible with the code you’ve posted here.

Also, I’d need to know what components I’ll need. I understand I’ll need the EPS32 board, but according to the AI, I’ll need another board to convert the voltage—and this is where I get lost because I don’t know anything about electronics or soldering; I’m more of a networking guy, haha.

Thanks for your help.

Hi, maybe you have any manual for this aircon? Or there is wiring diagram under the cover?

Hi again.

I found this other board that’s already assembled. As I mentioned, I don’t know anything about electronics, and I don’t have any soldering tools, etc....

I’m from Spain, and the board from my Australian friend is expensive, plus there’s the risk of customs charges.

A relative of mine could buy this board from the UK and bring it to me on a trip to Spain, which would save me the shipping and customs costs.

The library in this topic uses UART communication (CN65 or CN75 ports of aircon). If your aircon has such port (you need to check manual) there is a possibility that it is compatible.

LIN-Bus is a different protocol which is used by wall controllers and if you want to use that you should check another topic Fujitsu AC (heat pump) integration via ESPHome [ESP32] - #557 by cm84 (I see you already did)

I have tested this with a Fujitsu ASTH30KMTD, an Australian model, and it all works fine.

Any chance the STL for the USB style case can be shared?

La placa del amigo de Australia funciona por lo que he podido averiguar con los Fujitsu, General y otras marcas del grupo que utilizan la arquitectura de comunicaciones con cable de 3 hilos. AdemĂĄs viene preparada para funcionar a 5v (desconectada del A/A y alimentada por el puerto usb) cuando la estĂĄs configurando o cargando firmware y a 12 v desde el cable de tres hilos cuando estĂĄ operativa como mando esclavo trabajando con el equipo de climatizaciĂłn y conectado a el. Se conecta directamente al conector de pared que adjunta en las fotos, que dentro debe tener un par de interruptores que deberĂĄ configurar como maestro y multimando, lo pones al lado en una caja y a funcionar enlazĂĄndolo con casa y creando tus automatizaciones.
Acabo de adquirir uno usado en los Estados Unidos y correos me ha cobrado 23€ de aranceles aunque desde EEUU se supone que venían liquidados en los 18 que me costó el porte liquidado allí.
Hay que mantener mucho mangante en nuestro país, ya sabes

Lo bueno es que es un producto diseñado y producido especĂ­ficamente para nuestros equipos, mi general con 15 años no me ha dado nunca un fallo y esto es lo Ășnico que me faltaba para producto de 10, loas soluciones que existieron te limitaban a plataforma propietaria y con unos costes infinitamente mĂĄs altos y que ademĂĄs se rompĂ­an unos y no aprovechaban todas las funciones de los equipos, los otros.

Hi, I use such outer dimensions for my ready-to-use dongle 55.4 x 32.9 x 9.8.
Since it is designed exactly for my PCB’s, I will keep this one design private :blush:


Totally understand, I was more interested in the external measurements anyway, so thanks for sharing them, and thanks for your efforts in the project as a whole.

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Gracias por el comentario.
Finalmente he adquirido un producto de una empresa de España, el Airzone aidoo por 80€.
Estoy a la espera de que llegue y conectarlo pero por lo que he visto en vĂ­deos funciona con mi mĂĄquina, la opciĂłn del amigo australiano serĂ­a interesante pero el coste se me disparaba (producto+envĂ­o+aranceles).