This project allows you to control HAIER heat pumps.

1. AU082FYCRA(HW)
2. AU162FYCRA(HW)

All tests were performed on a pump with an additional ATW-a01 unit

However, it should work with all pumps that feature the YR-e27 remote control

If you have any question you can find me on discord:

• @kocur on discord channel
• @Radek on discord channel

If you like My work and want to support me, you can:

[<img width=„150px” src=„https://cdn.buymeacoffee.com/buttons/v2/default-yellow.png”>](https://www.buymeacoffee.com/jacekbrzozZ)

Or if you from Poland:

[<img width=„150px” src=„https://buycoffee.to/btn/buycoffeeto-btn-primary.svg”>](https://buycoffee.to/jacekbrzozz)

PCB layout is designed for both RaspberryPi zeroW and NanoPi neo 1.4.



In the first batch of PCB's was error PCB descriptions of R1 and R2 are swapped places, so if you have that PCB, you need to solder 1K resistor on R6 and 4.7 on R1

• R9 is RS485 EOL resistor. For this application don't solder it.
• Resistor R14-R15 is for choosing what type to board you want to connect (Raspberrypi/NanoPi Neo). For NanoPi, solder 0 Ohm resistor for powering NanoPi via GPIO. `If you connect Raspberry Pi don't solder it`, because powering RPi from GPIO bypasses builtin protections. I will be work but its not safe. If you connecting Raspberry Pi zero W, connect `J2`(GND) to `PP6` pad, and `J3`(+5V) to `PP1` pad.

if you want to use the script on the raspberry pi, you need to add the following settings to config.txt:

dtoverlay=w1-gpio,gpiopin=4
dtoverlay=pi3-disable-bt
enable_uart=1

Be aware that this settings will disable bluetooth. but we need use UART0

Script is also tested on NanoPi neo 1.4. For now no change is required, but in future, when support for hardware temperature sensor will be added, we need to remap some GPIO pins. Further information will be added later.

script needs a relay to control the data flow in order to function properly, so best choice is some sort of SBC. At the moment there are no plans to add support for other SBCs, but maybe in future I will add support for relays controlled by Home Assistant, so script may running on any platform, and only need a RS485 connection.

$ git clone https://github.com/ktostam/HaierPi.git

Edit the config.ini file with your favorite editor:

$ vim config.ini

run install script with root privileges

installation script by default installs in `/opt/haier`

$ sudo bash install.sh

installation script creates systemd services and asks if you want the service to start at system startup.

if you want manualy start/stop service:

for stop service:

$ sudo systemctl stop haier.service

for start service:

$ sudo systemctl start haier.service

By default sript listen on all interfaces on port 4000, you can change it in config.ini

default login and password for web interfaces is: *admin/admin*


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GNU Affero General Public License v3 ©Jacek Brzozowski

In this project I'am using:

jquery-schedule - MIT License

sweetalert2 - MIT License

bootstrap - MIT License

jquery - MIT License