I did use the shipper, and while it did raise the cost a lot more, it was still signifigantly cheaper than buying the terrible OEM hardware.
Have you tried changing tx/rx in the advanced setting or swap the cables?
Itās true. Iām only trying to be super frugal because I just had wifi modules installed when I had the 3 units installed. I saw Daikan had intergration with HA and was stoked. I didnāt realize Daikan has such a fragmented ecosystem. I ended up with wifi devices that have no open ports @$250 each. They work great with the Daikan North American app but I wouldnāt be on this forum if I wanted 30+ apps, you guys know the drill lol.
thanks so much for guidance, i got this working as per this pic, connected d1 mini to CN_wired on my daikin unit using 8286 version of faikin project from below
GitHub - Sonic-Amiga/ESP8266-Faikin: Opensource replacement for Daikin BRP module to control Daikin aircon units
Yes, I did, swaping Rx/Tx lines, tryied with or without level shifter, nothing worked, unfortunately. āAdvanced settingsā?..I donāt know how to do that. Maybe someone here with enough patience and knowledge will have mercy with noobs like me and write a small tutorial.
I figured that there should be somewhere in the Faikin settings, thank you - . I will give it a try and let you konw guys, ā¦ will be very happy if it works, Faikin works flawlessly on ESP32 WROOM. I suppose those numbers 26 and 27 are pin numbers, if thatās true, 34 and 35 will be the corect answer for ESP32 Wroom 32E.
so you got it working on the ESP Room but just need to connect it to the airco still?
Or did you succeed in that also already?
Yes, I got it working - so, as a confirmaition, the ESP32 WROOM 32E is working well :
Many thanks to [ ferbulos shaq] for the pin setting hint: The right chioces are :
Of course my module is a DiY module but it does the job :
Once again, many thanks guys for help, meantime I received the esp32-s1 boards I ordered 1 week ago, I will try them on the other AC units I have and post the results.
and the resultā¦
3 Likes
I am a happy owner of 3 Faikins - great addition to my home. I would like to use Faikin auto mode with HA. Is anyone doing this? Care to share the config if yes?
(I know I could go and dig around with MQTT Explorer, but itās easier to ask here first! 
)
1 Like
Does anyone get working the Faikin with the FTXC models (Sensira)? I want to buy a new Sensira a/c and install Faikin instead of the Dainkin controller if it is going to working fine.
There is a post in this thread where someone wih a Sensira got it working:
Can you please share the parts and schema of components ? Iām trying to build something similar. So I just want to check it.
According to the images I think you have
step-down MP1584EN
IIC I2C 5V to 3.3V level shifter
ESP32 pin
gnd: step-down, levelshifter
en: 5K resistor to 3.3V of step-down
Level shifter:
lv - 3.3V
gnd - lv - capacitor ?
gnd - hv - capacitor ?
hv - + from daikin ?
hv1 - TX from daikin ?
hv2 - RX from daikin ?
lv1 - TX esp32 ?
lv2 - RX esp32 ?
step-down
input + - from daikin
input - from daikin
There you go : a small schematic.
Regarding the modules:
ā¦of course , you can opt for a fixed 3.3V value moduleā¦
ā¦hope it helps.
2 Likes
These did not work for me
I believe the correct connector is JST-EH 2.54mm
Yes, 2.54mm is suitable for S21 port
If the connector is an issue, you can 3D print jumper cable holders. However, the connection tends to be loose, so ymmv. I have four Faikins that I have been running now for over a month. One of them has this janky setup, but as long as it doesnāt move, itās fine.
Can you can share the stl file please ? Where did you bought the s21 cable ?
For anyone who is using the CN_WIR port, the connector for it is a PH2.0mm 5P male connector, just like the official WIFI module (awm61a01)
Currently successfully installed on a Esp8266 nodemcu, and will try on esp32-c3-mini soon
Hello,
I`m interested in purchasing a Faikin ESP32 device, need a bit of help in what I need for it to make it work with my AC unit. I have a Daikin unit wich has a S21 cable prepared outside with a conector on it(prolly for optional wireless module). It is plugged into the S21 port on the unit board.
Does that cable plug directly into Faikin device?. Also for flashing the module with the firmare, what do I need? If someone is kinda enough to explain the procedure I would appreciate.