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revk / ESP32-Faikin

ESP32 based module to control Daikin aircon units
GNU General Public License v3.0
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Got Faikin working on FTX12NMVJUA with direct connection on S403 #208

Closed Jerther closed 5 months ago

Jerther commented 5 months ago

Not really an issue or a feature request, I just wanted to put out there that I've got Faikin working on my head unit!

Daikin hardware FTX12NMVJUA Direct connection on S403 using:

Faikin - S403
GND    - GND pin 6 or 7
12v    - +14v pin 1 (BOTTOM)
48(TX) - RX pin 5
34(RX) - TX pin 4
5v     - Not Used

This has already been said but, to anyone who would like to do the same: WATCHOUT FOR PIN 10 (TOP) WHICH HAS 320V ON IT! DON'T TOUCH IT OR CONNECT AYTHING TO IT! And abviously, don't wire anything while the unit is powered!

I've then put the Faikin module in the small compartment at the bottom that is not covered by the metal shield.

Works a treat! WAY better than my attempt at an IR module that mimics the IR remote control ;)

image

revk commented 5 months ago

Thank you.

Sytten commented 5 months ago

Nice I have a FTX12NMVJU (not A?) and I was just wondering if it was compatible. Ideally I would to make a cable with a plug, is it a standard one?

EDIT: The issue https://github.com/revk/ESP32-Faikin/issues/134#issuecomment-1793641584 seems to suggest a JST could work, the connector can vary model to model it seems. I am not expert in connectors so any help / digikey part is appreciated.

Jerther commented 5 months ago

I'd like to help you with the cable but as you can see I hacked something. The pins on the Faikin are standard pitch so I just used a strip of dupont connector, but on the other end I used some old motherboard connectors for front panel leds and buttons. I removed the metal connectors from the plastic housing and crimpted them a little bit. It makes a surprisingly secure connection.

Best of luck :)

Sytten commented 5 months ago

I got a better view of of the board. I am still looking for a compatible connector. PXL_20240205_023814386.jpg

eskey0 commented 3 months ago

@Sytten I just setted up my faikins, I was successful with "2.5mm Pitch 6-pin Cable Matching Pair - JST XH Compatible" I had around, It's a thight fit, it even bend the plastic a little bit, but Iam 100% satisfied with the result.

A picture of the finished product Conector

hAMMERlized commented 2 months ago

@Sytten I just setted up my faikins, I was successful with "2.5mm Pitch 6-pin Cable Matching Pair - JST XH Compatible" I had around, It's a thight fit, it even bend the plastic a little bit, but Iam 100% satisfied with the result.

A picture of the finished product

Conector

@eskey0

Nice one. But I don't get your wiring. Why do you have 6 wires instead of 5 at the connector? And where is the white and black cable going to? As well as the green one. As I can see there is a light and dark green one?

eskey0 commented 2 months ago

@Sytten I just setted up my faikins, I was successful with "2.5mm Pitch 6-pin Cable Matching Pair - JST XH Compatible" I had around, It's a thight fit, it even bend the plastic a little bit, but Iam 100% satisfied with the result. A picture of the finished product Conector

@eskey0

Nice one. But I don't get your wiring. Why do you have 6 wires instead of 5 at the connector? And where is the white and black cable going to? As well as the green one. As I can see there is a light and dark green one?

Thanks! The color of the wires don't match, I had both the connectors with their pigtails (I don't have the tools to make any of them) so they are soldered behind the faikin. The connector has 6 pins because you have to reach pin 6th for the ground, the unused ones are not connected, just routed behind the faikin and hidden there.

I hope I managed to explain myself, if you want I can dissasembly the unit and make some more pictures.

hAMMERlized commented 2 months ago

@eskey0 Thanks for the quick response. I think I got what you mean but I guess some detailed pictures can't be wrong 😉. And maybe some kind of quick written "diagram" like @Jerther did at the beginning of the topic. Just to be sure which pin is used and connected to the faikin board. Thanks.

fischan commented 2 months ago

@eskey0 which Indoor Unit do you have is this an ATXD Siesta Unit? Looks very similar to mine ATXD35A5V1B. Thanks!

eskey0 commented 2 months ago

@eskey0 which Indoor Unit do you have is this an ATXD Siesta Unit? Looks very similar to mine ATXD35A5V1B. Thanks!

They are comfora, the exact model is FTXP35N5V1B, but maybe they share the board.

hAMMERlized commented 2 months ago

Hey @eskey0 ,

how about the detailed pictures and / or wiring diagram that you wanted to upload? :)

Thanks

eskey0 commented 2 months ago

Hey @eskey0 ,

how about the detailed pictures and / or wiring diagram that you wanted to upload? :)

Thanks

I have to dissasembly the unit, I will upload as soon as I can, but I got my pinout from Jerther, in the first post you have all the info.

JerreV commented 2 months ago

Hello,

I don't know if this might help but the S403 connector seems to be a JST XA series one. Link to Header Link to Connector Crimps that go with the connector You can also get pre-crimped cables of different lengths: 20cm , 15cm , 30cm

hAMMERlized commented 2 months ago

Ok, so I have managed it to get it work with the following cable. Be aware to cut the 2 plastic "noses" with a sharp knife. Then the cable fits pretty well.

For connecting the 6 Pin Cable with the Jumper Cables of the Faikin module I have used this. So no soldering and crimping is needed.

Finally some hot glue to keep the cables where I want them to be and that's it. I have attached some detailed pictures. I have used Pin 1,4,5 and 6 from the connector.

Best Regards

image image image image image image image image image image image image

Jerther commented 1 month ago

Any of you who got the Faikin module working on S403 have random WiFi connectivity issues? I have the module working since my original post, but once in a while the wifi would dicsonnect and reconnect after many minutes. I wonder if it may be caused by the Vcc line on the S403 port not providing enough power?

fischan commented 1 month ago

Any of you who got the Faikin module working on S403 have random WiFi connectivity issues? I have the module working since my original post, but once in a while the wifi would dicsonnect and reconnect after many minutes. I wonder if it may be caused by the Vcc line on the S403 port not providing enough power?

I remember two times where I could not reach the web UI, this happened always after changing settings, but not sure if related to power supply. Also did not check if Faikin was still connected to Wifi.

Next time I will check.

adude00 commented 4 weeks ago

@hAMMERlized do I understand correctly that you're using the S403 connector that was originally meant for wired remote control?

I'm asking because in mine the cloud only wifi BRP069C47 connects to the S430 connector.

hAMMERlized commented 4 weeks ago

@hAMMERlized do I understand correctly that you're using the S403 connector that was originally meant for wired remote control?

I'm asking because in mine the cloud only wifi BRP069C47 connects to the S430 connector.

Yes

adude00 commented 3 weeks ago

Following @hAMMERlized example I made an S403-Faikin cable, thanks to a set of pre-crimped jst connectors I found on Amazon.

The split is a Siesta series, model ATXF25E (with ARXF25E outside unit, but it shouldn't matter).

The cable: IMG_8917

Faikin side: IMG_8918

S403 (Daikin) side: IMG_8919

Note that I did trim both connectors as per @hAMMERlized example above.

Connected to Faikin: IMG_8921 IMG_8922

Faikin details: IMG_8923 IMG_8927

Before (original WiFi module only): IMG_8911

Test run: IMG_8928

Tucked in: IMG_8935

Shield installed: IMG_8941

Note that I did NOT touch the original BRP069C47 WiFi module. This is a feature for me so Alexa integration does not rely on my home automation (also, I paid for the damn thing so I might as well use it).