Developer resources

https://developers.home-assistant.io/docs/core/entity/climate/

Developer docs for the core modules

Bosch Smart home

https://github.com/tschamm/boschshc-hass

Bosch Home Assistant integration

https://github.com/BoschSmartHome/bosch-shc-api-docs

Bosch Smart Home rest-api documentation

Prepare and boot Arch

Follow this guide to prepare boot medium for arch:

https://mplx.eu/de/tech/raspberry-pi-zero-rp0w-headless-archlinux/

https://archlinuxarm.org/platforms/armv6/raspberry-pi

Add bluetooth kernel parameter to load bluetooth firmware:

/boot/config.txt
dtparam=krnbt=on

Please not that the Raspberry pi w can only use 2.4 based wlans, so make sure the 2.4 ghz band is enabled on router.

Prepare system for manual package installations

pacman -S base-devel git

Install yay (to install aur packages)

https://github.com/Jguer/yay

git clone https://aur.archlinux.org/yay.git
cd yay
makepkg -si

Bluetooth installation

Add bluetooth kernel parameter to load bluetooth firmware:

/boot/config.txt

dtparam=krnbt=on

Ensure that in the same file enable_uart=0 (default) and /dev/ttyAMA0 is not used in/boot/cmdline.txt for the console

yay -S bluez bluez-utils-compat

we need the compat tools (hcitool / hciconfig) for room-assistant

/etc/bluetooth/main.conf

[Policy]
AutoEnable=true

Install Home Assistant & Co.

Follow the installation guide of home assistant, but instead of using the ubuntu installation package use this one for arch:

pacman -S home-assistant

Hacs installation with the homeassisant user:

wget -q -O – https://hacs.xyz/install | bash –

Install, enable and start the Mosquitto MQTT Broker as the IOT message broker:

pacman -S mosquitto
systemctl enable mosquitto
systemctl start mosquitto

Install and configure Room Assistant:

pacman -S nodejs npm
npm i –global –unsafe-perm room-assistant

# to run without root rights as root:
setcap cap_net_raw+eip $(eval readlink -f which hcitool)
setcap cap_net_admin+eip $(eval readlink -f which hciconfig)

You find detailed installation instructions for installation and configuration here.

Good introduction and sample replacement commands by Doug Vital Tech Blog

7thbit starting with a classic opening