RPI4-HA-installation

installation process and resources for RPi4 with HA

Required Hardware:

• RaspberryPi 4 model B
• MHS 3.5inch display & touchscreen

Installation process

1. Assemble all the parts like explained here.
2. Download latest raspberryPi O.S. (Raspbian) from here.
3. flash the image with your preferred tool balena etcher is the one RPi foundation recommends.
4. place a ssh.txt emtpy file on the root directory of the accesible partition of the newly flashed O.S. on the SD card to enable ssh.
5. put the SD card on the PI and switch it on for the first time.
6. connect through ssh using user pi and password raspberry.
7. run the following commands through ssh:

sudo rm -rf LCD-show
git clone https://github.com/goodtft/LCD-show.git
chmod -R 755 LCD-show
cd LCD-show/
sudo ./MHS35-show

8. wait for the RPi to restart, you should be able to use the screen once rebooted.
9. run sudo raspi-config to change the location, timezone and default display resolution (640x480).
10. start installing Home Assistant
    1. follow the instructions as stated below, if other hardware is being in use, follow these instead.
    2. execute the following commands through ssh

    # elevate account to root privileges
    sudo -i
    
    # Update, upgrade & clean debian install, after install dependencies
    apt update && sudo apt upgrade -y && sudo apt autoremove -y
    apt-get install -y software-properties-common apparmor-utils apt-transport-https ca-certificates curl dbus jq network-manager
    
    # Disable & stop ModemManager
    systemctl disable ModemManager
    systemctl stop ModemManager
    
    # Install Docker with official script
    curl -fsSL get.docker.com | sh
    
    # Install home assistant with supervisor using explicit device flag
    curl -sL "https://raw.githubusercontent.com/Kanga-Who/home-assistant/master/supervised-installer.sh" | bash -s -- -m raspberrypi4

    3. After install, access https://YourRPiIPAddress:8123 to know when the process has finished and to configure an account
    4. Access this account from chromium at the 3.5 inch screen with your user and password so they stay registered for that device
11. Setup RPi4 in kiosk mode by editing this file

sudo nano /etc/xdg/lxsession/LXDE-pi/autostart

12. Add the following lines to the end of the file

xset -dpms
xset s off
xset s noblank
@chromium-browser --kiosk --incognito --noerrdialogs --disable-translate --no-first-run --fast --fast-start --disable-infobars --app=http://localhost:8123

13. add the following line at the end of /etc/ssh/sshd_config to prevent ssh freeze

sudo nano /etc/ssh/sshd_config

IPQoS cs0 cs0

14. after this changes, you're done! to test this either run sudo systemctl restart lightdm.service or reboot the whole RPi, it should now start and log in to HomeAutomation in kiosk mode.