It helped me to run from all, only this https firmware: https://github.com/Oksion/esphaier, check it…
@ivoh95 Any chance to add position settings? Currently I added esp32 to the original module, it works but the original app give only a preview of a state, I cannot control unit anymore using hon as it’s “fighting” with the added esp module. It would be perfect to be able to set specific position rather than swing.
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@ivoh95 I’m using your code on an esp01 connected to the original esp32 board. If I disable the original board (using the EN pin) I don’t receive any status message, if I leave the board enabled I can read the status but can’t control the AC. Any idea?
Yesterday I finally tried this, found wemos d1 in the drawer, unfortunately version with no antenna, installed python, esphome, did esphome run stuff from original post, data are correctly read from the AC.
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I’ve tried multiple versions (ivoh95 and albetaCOM) with an ESP32-DevKitC V4 with Haier Tundra Plus, also switched RX and TX to test, but doesn’t receive any correct messages. Next step is trying to spy on the messages.
Or maybe it is because of single/multi core?
Hi everybody.
At last, I completed the main part of my ESPHome project for the native Haier ESP32 board. If you want to try it you can find it here: https://github.com/paveldn/ESP32-S0WD-Haier. This changes in the development branch but soon I will put it on master. already on master It is working fine on my AC but of course, I can’t guarantee that it also will work OK for you, so be careful.
If you will try it let me know how it went.
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Hi paveldn,
I’ve tried to get it working (on Windows), but failed until now.
Already installed Python 3.10.5, pip (py -m ensurepip --upgrade), and esphome (pip install esphome). But that might not be the correct way I guess? 
Maybe I have to copy it to Home Assistant esphome directory?
I also see we cannot use a web_server and captive_portal when using type: esp-idf
Hi KoalaBear,
And what kind of problem/error do you get?
I suppose you should have ESPHome installed already, so should be able to build my code the usual way with the command
esphome compile haier.yaml
I now get:
INFO Reading configuration .\haier.yaml...
ERROR Error while reading config: Invalid YAML syntax:
Error reading file .\secrets.yaml: [Errno 2] No such file or directory: '.\\secrets.yaml'
Which I completely understand, because esphome and all the home assistant parts run on Home Assistant, not on my ‘local’ Windows desktop.
I only know how to get it working when esphome on/inside Home Assistant is building it, not like this, no experience yet with it.
I copied everything to Home Assistant and just added it to esphome and then I do get it working. Will try to see if it works.
Oh, yes you should have secrets.yaml in the same folder with your wifi SSID and password. Like this:
wifi_ssid: "WIFINAME"
wifi_password: "WIFIPASS"
And yes you can’t have web_server and captive_portal because there is no AsyncTCP implementation for esp-idf.
OK, tried it out, looks like no response from the Haier.
[14:06:27][D][Haier:530]: Message sent: FF FF 0A 00 00 00 00 00 00 61 00 07 72
[14:06:32][D][Haier:530]: Message sent: FF FF 0A 00 00 00 00 00 00 61 00 07 72
[14:06:37][D][Haier:530]: Message sent: FF FF 0A 00 00 00 00 00 00 61 00 07 72
[14:06:42][D][Haier:530]: Message sent: FF FF 0A 00 00 00 00 00 00 61 00 07 72
[14:06:47][D][Haier:530]: Message sent: FF FF 0A 00 00 00 00 00 00 61 00 07 72
I’ve tried all 4 possible combinations of RX/TX, both on pin 16/17 and the original RX/TX pins. So I guess I need to really start sniffing the bytes on the Haier Tundra Plus, maybe it’s a completely different scheme.
Yes, that is happening when there is no answer from the device. But what kind of ESP board do you use? On the original board, it should be pins 16/17.
ESP32 by default have 3 UART ports:
UART0 => GPIO 1 and 3
UART1 => GPIO 9 and 10
UART2 => GPIO 17 and 16
But UART1 usually used to work with flash
So you have 2 UARTS:
Of course, if you are using a different ESP32 board probably you will need to use different pins.
P.S. Keep in mind if you want to use UART0 (pins 1 and 3) to work with AC you will need to disable serial logging by adding baud_rate: 0 option to the logging section, like this:
logger:
level: DEBUG
baud_rate: 0
I have this board: ESP32-DevKitC V4.
On the first 4 combinations I did use the baud_rate: 0, and for the second 4 combinations I removed it to see if it got different result.
One of the 4 combinations.
The picture looks OK if you trying to communicate through UART0 (Pins 1 and 3) Probably your AC using a different port speed. Mine is working on 9600. You should try to use higher baudrates.
Today i tried on another AC (flexis plus v3), i tried with node mcu v3 as it was easiest locally available thing i could get and same as you, no communications, but i get back message:
[08:28:05][D][Haier:103]: POLL:
0-255
1-255
2-10
3-0
4-0
5-0
6-0
7-0
8-1
9-1
10-77
11-1
12-90
maybe i got confused and this ac is the one that uses “flexisPlusV4” “protocol” (hOn instead of smartair2)
The poll is the data that mcu send to AC, if AC don’t respond… Or the connections aren’t correct or the protocol is different
I redid all the connections (turns out “dupont” cables are not that great)
this is what i get with albetaCOM Haierv2:
[09:23:09][D][Haier:373]: POLL: 255 255 10 64 0 0 0 0 0 1 77 1 153 179 180
[09:23:09][D][Haier:398]: Readed message ALBA: 255 255 42 64 0 0 0 0 0 2 109 1 6 2 69 0 2 0 0 5 0 0 50 0 86 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 182 76 190
with yours i don’t get any response for poll, but again all ACs I’m trying this on are sold as flexis plus here
I also sometimes suspect the Dupont things to be in the way as they are not solid.
you can take out connector from the plastic housting, mangle it with pliers, cover with tape and that way there is better connection.
For the actual use I will switch to esp01 with shield with serial connector for it and the 4pin wire, that way it will hopefully fit nicer both into the unit and connectors into the pins.
Update: i did one more unit, just removed plastic on dupont and basically crimped and taped the wires onto the board, that is only unit of the three where the connection still works after tidying up the wires. My guess is dupont wires are not that great for “production” usage.
Is there an option to add “light” toggle, so i can turn off AC display from HA (or other ways?). If there as a way I can find out the position that sets it and it’s values.
maybe the light switch could be implemented as light bulb in HA?
Just to make it easier.
| Dec | Bin | Description |
|---|---|---|
| 48 | 00110000 |
Health, Down, Light off |
| 40 | 00101000 |
Health, Up, Light off |
| 16 | 00010000 |
Health, Down, Light on |
| 32 | 00100000 |
Health(?), Up(?), Light off |
The third bit seems the light, the fourth looks like the position (Up/Down), but what about the fifth…