6 ms·

ESP32-Faikin: ESP32 based module to control Daikin aircon units

151 points by todsacerdoti 1y ago

bschwindHN 1y ago
Almost 10 years ago (damn...) I reverse engineered my air conditioner IR protocol and wrote a lengthy article about it. That being said, I was new to electronics and was doing it all on a raspberry pi instead of something embedded. Since then I've also made an ESP32 version, and many others have as well. If you're interested in more of the actual reverse engineering part, I tried to explain it from more of a beginner's perspective, because I was a beginner at electronics then: https://blog.bschwind.com/2016/05/29/sending-infrared-commands-from-a-raspberry-pi-without-lirc/ https://blog.bschwind.com/2016/05/29/sending-infrared-comman...
qmarchi 1y ago
So, I do wonder. Daikin's Japanese units have support for EchoNet, a "source available" protocol. Is anyone able to test if any of the international units have this enabled? EchoNet Home Assistant: https://github.com/scottyphillips/echonetlite_homeassistant https://github.com/scottyphillips/echonetlite_homeassistant
twtran 1y ago
This project has been a godsent! The latest Daikin indoor units have a built-in WiFi module which only allows control through their cloud infrastructure. Besides it being a privacy and/or security issue, it's very slow and buggy (e.g. I've had two units reset their credentials after a power outage). There are two caveats to going the Faikin way: you need to source or build your own cable that's compatible with your unit, and there's no access control (that I could find) for the web interface so you need to firewall and proxy it properly.
- ragingroosevelt 1y ago
  There's an esphome config for them and esphome let's you set a password. I believe it supports encryption but I can't remember. The faikins are really awesome. I have mine set up in Home Assistant and I have automations for them to do stuff to turn off if the outdoor and indoor temps are both pleasant. I also have it set up to turn off if any of my windows or exterior doors are left open for more than five minutes. But you can program them to do so much. The stock firmware does mqtt so it's quite versatile.
  - ohopton 1y ago
    These things are great, I've managed to get them into all my indoor units without too much trouble. If you've already got them integrated into Home Assistant check out Versatile Thermostat (you can find it in HACS), if you've got temp sensors in the rooms with your AC you'll get very good target temperature tracking, much better than the auto functionality built into Faikin.
- denismi 1y ago
  > The latest Daikin indoor units have a built-in WiFi module which only allows control through their cloud infrastructure. Which ones? My Alira X from a couple of years ago is currently talking directly to Home Assistant over WiFi. For a year or so I've been unable to update firmware without losing the functionality, but it looks like the community has a fix pending verification: https://github.com/home-assistant/core/issues/99251 https://github.com/home-assistant/core/issues/99251 I have another old unit that I'll have to replace eventually, and ideally it could be Daikin and would work natively without involving external hardware.
  - twtran 1y ago
    My experience is strictly with Daikin Stylish units bought a few months ago in the EU. They still have both the S21 port and a compartment for an external WiFi module, and for all intents and purposes it's plug and play. Their standard WiFi module is built in the internal unit motherboard AFAICT, and it only works with their Daikin Onecta platform (no local API whatsoever).
looofooo0 1y ago
[flagged]
- bboygravity 1y ago
  [flagged]
  - FirmwareBurner 1y ago
    [flagged]
    - xwolfi 1y ago
      Well but what you say is complete nonsense.
      - FirmwareBurner 1y ago
        [flagged]
    - seszett 1y ago
      As far as I can tell, it's also illegal to install split systems in the US when it's not done by a professional so I'm not sure what you guys are ranting about. The main reason why EU has few AC installations is that the climate is generally much more temperate than the US or Asia and until the last decade it made no sense to have AC when outside temperature rarely went above 27°C or so in the summer.
      - FirmwareBurner 1y ago
        >it's also illegal to install split systems in the US when it's not done by a professional Where did you see me arguing this? Split ACs must everywhere be installed by professionals, I never said they don't. You missed the point completely. Building regulations in some EU countries forbid installation of split AC units period, even by professionals because you're not allowed to do modifications to the outer walls and facade, even if you're a owner, let alone a tenant. >until the last decade it made no sense to have AC when outside temperature rarely went above 27°C or so in the summer It makes no sense to not let people adapt their residences to the new environmental conditions.
timthorn 1y ago
I hear so many complaints about ISPs, but Andrews & Arnold really do make the world a better place.
dns_snek 1y ago
As a more general approach for making any air conditioner "smarter", there is a SmartIR integration [1] for Home Assistant. It requires an IR blaster and a configuration file that defines IR code sequences for every possible AC state (temperature + fan speed + swing + etc) that you might want to use. Many models are already configured or you can try a few models from the same manufacturer and sometimes the codes are similar enough that you'll find one that works. Once it's set up you get a nice climate control in Home Assistant, the only drawback is that the state displayed in HA will go out of sync if you use the physical remote. [1] https://github.com/smartHomeHub/SmartIR/blob/master/docs/CLIMATE.md https://github.com/smartHomeHub/SmartIR/blob/master/docs/CLI...
mianos 1y ago
I just have some IR LEDs on an esp8266 in the same room as my Daikin and run tasmota. It works perfectly. I have temp control and fully remote automation.
- mianos 1y ago
  Here is a happy co-incidence, seeed just added a dedicated IR sender in a box: https://wiki.seeedstudio.com/XIAO_IR_Mate_Smart_IR_Remote/ https://wiki.seeedstudio.com/XIAO_IR_Mate_Smart_IR_Remote/
- darkwater 1y ago
  How did you teach it the IR language it has to speak?
  - sambf 1y ago
    If it is like ESPHome, the IR sequences are included. Mostly from databases like IRDB [0] [0] https://github.com/probonopd/irdb https://github.com/probonopd/irdb
  - mianos 1y ago
    It's built in: DAIKIN200 https://tasmota.github.io/docs/Tasmota-IR/#sending-irhvac-commands https://tasmota.github.io/docs/Tasmota-IR/#sending-irhvac-co... I didn't do anything. It just worked.
  - snickerdoodle12 1y ago
    I've done the same for an AC that wasn't supported by IRDB at the time. Just went through recording every possible combination, was a boring 30 minutes but it's worked perfectly ever since.
  - saidinesh5 1y ago
    I used one of the broadlink devices with this library a few years ago: https://github.com/mjg59/python-broadlink https://github.com/mjg59/python-broadlink You just point your remote to it and it can capture the data that you can just replay..
darkwater 1y ago
How convenient, I just got installed a Daikin not even knowing it could have WLAN capabilities, discovered that it has, that is cloud-only but it wasn't like that til long ago. Currently I'm using this bridge to their cloud Onecta for Home Assistant (https://github.com/jwillemsen/daikin_onecta https://github.com/jwillemsen/daikin_onecta) and so far it's working great. But this project is definitely nicer! But I don't fully understand how do I connect the ESP32 to the aircon. I see you can buy a cable on Tindie but... oh wait, I know see a badly illuminated part of the attached YouTube video where he does open the thing up and connect the cable but really, it's not that clear to me (especially considering there are a gazillion slightly different Daikin split models out there). Any help appreciated (even if it's just a pointer to RTFM)
- woleium 1y ago
  using the S21 port (iirc). my units had a trailing wire that just plugged directly into the faikin board
- twtran 1y ago
  The project has a page about "wiring" [1] which also has a table with the needed parts to make your own cable (that's what I ended up doing). In my case it was more hassle to look up how to dismantle the unit to get to the motherboard (I recommend looking up your unit's service manual), attaching the module and routing the cable are trivial. [1] https://github.com/revk/ESP32-Faikin/wiki/Wiring https://github.com/revk/ESP32-Faikin/wiki/Wiring
blutack 1y ago
RevK's blog has a lot of interesting posts on it. https://www.revk.uk/ https://www.revk.uk/ He also runs an excellent ISP in the UK called AAISP which I can highly recommend (https://www.aa.net.uk https://www.aa.net.uk) AAISP build their own core & customer networking devices/routers from scratch (not Linux based) in the UK. They are fascinating to use - a completely different evolutionary tree to any other networking kit I've used. Some unique features. https://www.firebrick.co.uk/fb9000/ https://www.firebrick.co.uk/fb9000/
- MaKey 1y ago
  > AAISP build their own core & customer networking devices/routers from scratch (not Linux based) in the UK. Which kernel are they using?
  - EvanAnderson 1y ago
    Their site says: - Every line of code in the firmware, including building an operating system from the ground up with device drivers and IP stack. - The FireBrick's hardware platform is not used in any other devices and the FireBrick's codebase / firmware is not used in any other hardware. Given the feature set I'm a little dubious that it's all in-house. There are a ton of man-years of code in there. It would be interesting to know the history of the software.
    - masfuerte 1y ago
      This blog post has a few hints [1]. Apparently they had to rewrite a load of code when they moved to a multicore processor, so it definitely seems to be in-house software. [1]: https://www.firebrick.co.uk/about/news/version-20/ https://www.firebrick.co.uk/about/news/version-20/
      - EvanAnderson 1y ago
        Thanks for that link. It's absolutely wild to think about a suite of software this sophisticated that exists outside the realm of Unix, Windows, or any of the long-term players in the embedded networking device market. I know there are boutique embedded IP stacks out there but it still boggles my mind that a small company like this has had sufficient revenue to keep up with the "churn" in the networking space for 20+ years w/o leaning on free/open-source software.
kova12 1y ago
I'm considering a new heat pump (ducted) and daikin seems to require One+ Smart Thermostat to run it in most efficient way, so - cloud. I don't think this project supports plugging into it, but perhaps it's possible?
deleted 1y ago
[deleted]
intothemild 1y ago
Over in Panasonic land we have a similar setup. https://github.com/DomiStyle/esphome-panasonic-ac https://github.com/DomiStyle/esphome-panasonic-ac I've got two of these running in my Panasonic Heat Pumps and it's excellent.
rcdemski 1y ago
For those with Midea manufactured units (They white label so many brands) a great turnkey option is this dongle made by SMLight (1) that comes preloaded with ESPHome. 1 - https://smlight.tech/product/slwf-01/ https://smlight.tech/product/slwf-01/
- drnick1 1y ago
  Yes, I use this with my Midea window AC and it works great. Completely removes the need for a cloud account. It's hard to believe appliance manufacturers (and cars and others) are making privacy conscious users jump through such hoops in order to sever the devices they own from the cloud.
vsviridov 1y ago
I wish there was something similar for ThinQ, as I prefer not to have Cloud-based smart devices, but alas, had to purchase some floor AC units during a heat wave.
- somehnguy 1y ago
  If you're interested in home automation it looks like Home Assistant has an integration (https://www.home-assistant.io/integrations/lg_thinq/ https://www.home-assistant.io/integrations/lg_thinq/). There is also a project for the esp32 which allows you to control it locally from Home assistant instead of the cloud based integration (https://github.com/JanM321/esphome-lg-controller https://github.com/JanM321/esphome-lg-controller)
  - vsviridov 1y ago
    I'm running HomeAssistant and I've tried the native integration, which works fine but is missing power consumption, or there's a HACS-based integration, that is a bit painful to set up, is able to see power consumption, but cannot enable sleep mode... So it's a bit of a hit and miss with either of those. Will take a look at the ESP variant, thank you. Edit: Looks like the ESP32 project is mostly tailored for hard-wired installations, but I just have a couple of floor units...
codingminds 1y ago
Nice project. I'm not sure about the latest models (because I don't get the Daikin naming), but usually Intesis provides a huge range of connectivity modules: https://compatibility.intesis.com/search?reference=daikin https://compatibility.intesis.com/search?reference=daikin
sowbug 1y ago
Anything similar for Della? I don't even know who their OEM is.
- sowbug 1y ago
  Some recent work here: https://www.elektroda.com/rtvforum/topic4119999.html https://www.elektroda.com/rtvforum/topic4119999.html At least some Della mini splits are manufactured by Align, and they use a Tuya networking module.
hn8726 1y ago
This is very interesting, I've been increasingly frustrated with Daikin's approach to mobile control and the incredibly poor execution of the original wifi module/automation: - the wifi module and temperature sensor are right next to each other, which was causing the unit to read temperature 2-3 celcius higher than actual due to wifi sensor heat (measured by another temperature sensor on the other side of the unit). This was fixed in a software update, but seems like poor design - it looks like the original wifi module uses a lot of power, at least according to the app readings. Didn't verify this one, but it tracks with how much it heats up even if the unit is completely off - no way to connect an external temperature sensor, so even with a software fix to the temperature sensor reading, my room is consistently 2-3 degree celcius colder than the set temperature - there are no release notes for the official firmware updates so you never know what can break if you update (but an update did fix the wifi module heating issue) - the (new) app had power usage data for the past couple of years. Now they decided to only store a year? Or maybe just deleted the old data. Either way, now it's lost without any notice or way to archive it --- That said, how likely is it that Faikin causes a hardware failure in an indoor or outdoor unit in case of a software bug? I'll definitely try it but I'm a bit uneasy with an open source software designed for what seems like a massive range of devices, and no way for the maintainers to accurately test against each one
cek 1y ago
I want this, but for MrCool units!
kbuck 1y ago
I was very happy to find that there are similar libraries for Mitsubishi units as well: 1: https://github.com/SwiCago/HeatPump https://github.com/SwiCago/HeatPump 2: https://github.com/echavet/MitsubishiCN105Esphome https://github.com/echavet/MitsubishiCN105Esphome I've got this running on several units and it works great. If you buy ESP32 development boards with pre-soldered pins, you can even build the boards without soldering.
- psunavy03 1y ago
  Is there any documentation on what Mitsubishi's own MHK2 units can do, how well these libs replicate it, and how third-party thermostats factor into that equation? I recently had a Mitsubishi heat pump installed, and I'm underwhelmed by the 1999-esque stock thermostat, but the vendor swore on the proverbial stack of Bibles that it was the only one that could properly run the unit as it was designed given all the proprietary control laws and so on.

151 points by todsacerdoti 1y ago

Almost 10 years ago (damn...) I reverse engineered my air conditioner IR protocol and wrote a lengthy article about it. That being said, I was new to electronics and was doing it all on a raspberry pi instead of something embedded. Since then I've also made an ESP32 version, and many others have as well. If you're interested in more of the actual reverse engineering part, I tried to explain it from more of a beginner's perspective, because I was a beginner at electronics then: https://blog.bschwind.com/2016/05/29/sending-infrared-commands-from-a-raspberry-pi-without-lirc/ https://blog.bschwind.com/2016/05/29/sending-infrared-comman...

qmarchi 1y ago

So, I do wonder. Daikin's Japanese units have support for EchoNet, a "source available" protocol. Is anyone able to test if any of the international units have this enabled? EchoNet Home Assistant: https://github.com/scottyphillips/echonetlite_homeassistant https://github.com/scottyphillips/echonetlite_homeassistant

twtran 1y ago

This project has been a godsent! The latest Daikin indoor units have a built-in WiFi module which only allows control through their cloud infrastructure. Besides it being a privacy and/or security issue, it's very slow and buggy (e.g. I've had two units reset their credentials after a power outage). There are two caveats to going the Faikin way: you need to source or build your own cable that's compatible with your unit, and there's no access control (that I could find) for the web interface so you need to firewall and proxy it properly.

ragingroosevelt 1y ago
There's an esphome config for them and esphome let's you set a password. I believe it supports encryption but I can't remember. The faikins are really awesome. I have mine set up in Home Assistant and I have automations for them to do stuff to turn off if the outdoor and indoor temps are both pleasant. I also have it set up to turn off if any of my windows or exterior doors are left open for more than five minutes. But you can program them to do so much. The stock firmware does mqtt so it's quite versatile.
- ohopton 1y ago
  These things are great, I've managed to get them into all my indoor units without too much trouble. If you've already got them integrated into Home Assistant check out Versatile Thermostat (you can find it in HACS), if you've got temp sensors in the rooms with your AC you'll get very good target temperature tracking, much better than the auto functionality built into Faikin.
denismi 1y ago
> The latest Daikin indoor units have a built-in WiFi module which only allows control through their cloud infrastructure. Which ones? My Alira X from a couple of years ago is currently talking directly to Home Assistant over WiFi. For a year or so I've been unable to update firmware without losing the functionality, but it looks like the community has a fix pending verification: https://github.com/home-assistant/core/issues/99251 https://github.com/home-assistant/core/issues/99251 I have another old unit that I'll have to replace eventually, and ideally it could be Daikin and would work natively without involving external hardware.
- twtran 1y ago
  My experience is strictly with Daikin Stylish units bought a few months ago in the EU. They still have both the S21 port and a compartment for an external WiFi module, and for all intents and purposes it's plug and play. Their standard WiFi module is built in the internal unit motherboard AFAICT, and it only works with their Daikin Onecta platform (no local API whatsoever).

looofooo0 1y ago

[flagged]

bboygravity 1y ago
[flagged]
- FirmwareBurner 1y ago
  [flagged]
  - xwolfi 1y ago
    Well but what you say is complete nonsense.
    - FirmwareBurner 1y ago
      [flagged]
  - seszett 1y ago
    As far as I can tell, it's also illegal to install split systems in the US when it's not done by a professional so I'm not sure what you guys are ranting about. The main reason why EU has few AC installations is that the climate is generally much more temperate than the US or Asia and until the last decade it made no sense to have AC when outside temperature rarely went above 27°C or so in the summer.
    - FirmwareBurner 1y ago
      >it's also illegal to install split systems in the US when it's not done by a professional Where did you see me arguing this? Split ACs must everywhere be installed by professionals, I never said they don't. You missed the point completely. Building regulations in some EU countries forbid installation of split AC units period, even by professionals because you're not allowed to do modifications to the outer walls and facade, even if you're a owner, let alone a tenant. >until the last decade it made no sense to have AC when outside temperature rarely went above 27°C or so in the summer It makes no sense to not let people adapt their residences to the new environmental conditions.

timthorn 1y ago

I hear so many complaints about ISPs, but Andrews & Arnold really do make the world a better place.

dns_snek 1y ago

As a more general approach for making any air conditioner "smarter", there is a SmartIR integration [1] for Home Assistant. It requires an IR blaster and a configuration file that defines IR code sequences for every possible AC state (temperature + fan speed + swing + etc) that you might want to use. Many models are already configured or you can try a few models from the same manufacturer and sometimes the codes are similar enough that you'll find one that works. Once it's set up you get a nice climate control in Home Assistant, the only drawback is that the state displayed in HA will go out of sync if you use the physical remote. [1] https://github.com/smartHomeHub/SmartIR/blob/master/docs/CLIMATE.md https://github.com/smartHomeHub/SmartIR/blob/master/docs/CLI...

mianos 1y ago

I just have some IR LEDs on an esp8266 in the same room as my Daikin and run tasmota. It works perfectly. I have temp control and fully remote automation.

mianos 1y ago
Here is a happy co-incidence, seeed just added a dedicated IR sender in a box: https://wiki.seeedstudio.com/XIAO_IR_Mate_Smart_IR_Remote/ https://wiki.seeedstudio.com/XIAO_IR_Mate_Smart_IR_Remote/
darkwater 1y ago
How did you teach it the IR language it has to speak?
- sambf 1y ago
  If it is like ESPHome, the IR sequences are included. Mostly from databases like IRDB [0] [0] https://github.com/probonopd/irdb https://github.com/probonopd/irdb
- mianos 1y ago
  It's built in: DAIKIN200 https://tasmota.github.io/docs/Tasmota-IR/#sending-irhvac-commands https://tasmota.github.io/docs/Tasmota-IR/#sending-irhvac-co... I didn't do anything. It just worked.
- snickerdoodle12 1y ago
  I've done the same for an AC that wasn't supported by IRDB at the time. Just went through recording every possible combination, was a boring 30 minutes but it's worked perfectly ever since.
- saidinesh5 1y ago
  I used one of the broadlink devices with this library a few years ago: https://github.com/mjg59/python-broadlink https://github.com/mjg59/python-broadlink You just point your remote to it and it can capture the data that you can just replay..

darkwater 1y ago

How convenient, I just got installed a Daikin not even knowing it could have WLAN capabilities, discovered that it has, that is cloud-only but it wasn't like that til long ago. Currently I'm using this bridge to their cloud Onecta for Home Assistant (https://github.com/jwillemsen/daikin_onecta https://github.com/jwillemsen/daikin_onecta) and so far it's working great. But this project is definitely nicer! But I don't fully understand how do I connect the ESP32 to the aircon. I see you can buy a cable on Tindie but... oh wait, I know see a badly illuminated part of the attached YouTube video where he does open the thing up and connect the cable but really, it's not that clear to me (especially considering there are a gazillion slightly different Daikin split models out there). Any help appreciated (even if it's just a pointer to RTFM)

woleium 1y ago
using the S21 port (iirc). my units had a trailing wire that just plugged directly into the faikin board
twtran 1y ago
The project has a page about "wiring" [1] which also has a table with the needed parts to make your own cable (that's what I ended up doing). In my case it was more hassle to look up how to dismantle the unit to get to the motherboard (I recommend looking up your unit's service manual), attaching the module and routing the cable are trivial. [1] https://github.com/revk/ESP32-Faikin/wiki/Wiring https://github.com/revk/ESP32-Faikin/wiki/Wiring

blutack 1y ago

RevK's blog has a lot of interesting posts on it. https://www.revk.uk/ https://www.revk.uk/ He also runs an excellent ISP in the UK called AAISP which I can highly recommend (https://www.aa.net.uk https://www.aa.net.uk) AAISP build their own core & customer networking devices/routers from scratch (not Linux based) in the UK. They are fascinating to use - a completely different evolutionary tree to any other networking kit I've used. Some unique features. https://www.firebrick.co.uk/fb9000/ https://www.firebrick.co.uk/fb9000/

MaKey 1y ago
> AAISP build their own core & customer networking devices/routers from scratch (not Linux based) in the UK. Which kernel are they using?
- EvanAnderson 1y ago
  Their site says: - Every line of code in the firmware, including building an operating system from the ground up with device drivers and IP stack. - The FireBrick's hardware platform is not used in any other devices and the FireBrick's codebase / firmware is not used in any other hardware. Given the feature set I'm a little dubious that it's all in-house. There are a ton of man-years of code in there. It would be interesting to know the history of the software.
  - masfuerte 1y ago
    This blog post has a few hints [1]. Apparently they had to rewrite a load of code when they moved to a multicore processor, so it definitely seems to be in-house software. [1]: https://www.firebrick.co.uk/about/news/version-20/ https://www.firebrick.co.uk/about/news/version-20/
    - EvanAnderson 1y ago
      Thanks for that link. It's absolutely wild to think about a suite of software this sophisticated that exists outside the realm of Unix, Windows, or any of the long-term players in the embedded networking device market. I know there are boutique embedded IP stacks out there but it still boggles my mind that a small company like this has had sufficient revenue to keep up with the "churn" in the networking space for 20+ years w/o leaning on free/open-source software.

kova12 1y ago

I'm considering a new heat pump (ducted) and daikin seems to require One+ Smart Thermostat to run it in most efficient way, so - cloud. I don't think this project supports plugging into it, but perhaps it's possible?

deleted 1y ago

[deleted]

intothemild 1y ago

Over in Panasonic land we have a similar setup. https://github.com/DomiStyle/esphome-panasonic-ac https://github.com/DomiStyle/esphome-panasonic-ac I've got two of these running in my Panasonic Heat Pumps and it's excellent.

rcdemski 1y ago

For those with Midea manufactured units (They white label so many brands) a great turnkey option is this dongle made by SMLight (1) that comes preloaded with ESPHome. 1 - https://smlight.tech/product/slwf-01/ https://smlight.tech/product/slwf-01/

drnick1 1y ago
Yes, I use this with my Midea window AC and it works great. Completely removes the need for a cloud account. It's hard to believe appliance manufacturers (and cars and others) are making privacy conscious users jump through such hoops in order to sever the devices they own from the cloud.

vsviridov 1y ago

I wish there was something similar for ThinQ, as I prefer not to have Cloud-based smart devices, but alas, had to purchase some floor AC units during a heat wave.

somehnguy 1y ago
If you're interested in home automation it looks like Home Assistant has an integration (https://www.home-assistant.io/integrations/lg_thinq/ https://www.home-assistant.io/integrations/lg_thinq/). There is also a project for the esp32 which allows you to control it locally from Home assistant instead of the cloud based integration (https://github.com/JanM321/esphome-lg-controller https://github.com/JanM321/esphome-lg-controller)
- vsviridov 1y ago
  I'm running HomeAssistant and I've tried the native integration, which works fine but is missing power consumption, or there's a HACS-based integration, that is a bit painful to set up, is able to see power consumption, but cannot enable sleep mode... So it's a bit of a hit and miss with either of those. Will take a look at the ESP variant, thank you. Edit: Looks like the ESP32 project is mostly tailored for hard-wired installations, but I just have a couple of floor units...

codingminds 1y ago

Nice project. I'm not sure about the latest models (because I don't get the Daikin naming), but usually Intesis provides a huge range of connectivity modules: https://compatibility.intesis.com/search?reference=daikin https://compatibility.intesis.com/search?reference=daikin

sowbug 1y ago

Anything similar for Della? I don't even know who their OEM is.

sowbug 1y ago
Some recent work here: https://www.elektroda.com/rtvforum/topic4119999.html https://www.elektroda.com/rtvforum/topic4119999.html At least some Della mini splits are manufactured by Align, and they use a Tuya networking module.

hn8726 1y ago

This is very interesting, I've been increasingly frustrated with Daikin's approach to mobile control and the incredibly poor execution of the original wifi module/automation: - the wifi module and temperature sensor are right next to each other, which was causing the unit to read temperature 2-3 celcius higher than actual due to wifi sensor heat (measured by another temperature sensor on the other side of the unit). This was fixed in a software update, but seems like poor design - it looks like the original wifi module uses a lot of power, at least according to the app readings. Didn't verify this one, but it tracks with how much it heats up even if the unit is completely off - no way to connect an external temperature sensor, so even with a software fix to the temperature sensor reading, my room is consistently 2-3 degree celcius colder than the set temperature - there are no release notes for the official firmware updates so you never know what can break if you update (but an update did fix the wifi module heating issue) - the (new) app had power usage data for the past couple of years. Now they decided to only store a year? Or maybe just deleted the old data. Either way, now it's lost without any notice or way to archive it --- That said, how likely is it that Faikin causes a hardware failure in an indoor or outdoor unit in case of a software bug? I'll definitely try it but I'm a bit uneasy with an open source software designed for what seems like a massive range of devices, and no way for the maintainers to accurately test against each one

cek 1y ago

I want this, but for MrCool units!

kbuck 1y ago

I was very happy to find that there are similar libraries for Mitsubishi units as well: 1: https://github.com/SwiCago/HeatPump https://github.com/SwiCago/HeatPump 2: https://github.com/echavet/MitsubishiCN105Esphome https://github.com/echavet/MitsubishiCN105Esphome I've got this running on several units and it works great. If you buy ESP32 development boards with pre-soldered pins, you can even build the boards without soldering.

psunavy03 1y ago
Is there any documentation on what Mitsubishi's own MHK2 units can do, how well these libs replicate it, and how third-party thermostats factor into that equation? I recently had a Mitsubishi heat pump installed, and I'm underwhelmed by the 1999-esque stock thermostat, but the vendor swore on the proverbial stack of Bibles that it was the only one that could properly run the unit as it was designed given all the proprietary control laws and so on.