SPI Direct display HassOS

Hardware
1

Hi everybody,

I would like to use a small screen connected directly to the GPIO port of a raspberry.
As I already use some pins in UART mode, I thought to use a screen in SPI mode like this: 1.28inch LCD Module - Waveshare Wiki
Can this screen be managed natively with HassOS or you must first install Raspbian then HA in supervised mode?

2

Hello
I want to do the same thing. Is it possible with Home Assistant directly installed on the Raspberry Pi 5?
Thanks

EDIT:

To be more specific/clear here is my plan:
I saw this article (in german): RaspberryPi Hutschienen-Gehäuse mit Display - volkszaehler.org - Photovoltaikforum

I have the same top hat rail Case for my Raspberry Pi so I can mount it near my KNX devices.

The plan then was to buy this cheap 2.2" display and connect it to the raspberry pi and display some basic text information like how is the temperature, connection or disk space etc. etc.

image
image1348×1194 146 KB

The first lession I learned was that the required “framebuffer driver” is now in 2025 part of the official linux kernel - great!

BUT now I have the problem that all information and projects I find online to connect this 2.2" display are either for raspberry OS or not directly to the Raspberry Pi but to some other ESP devices the guys want to use in the bedroom etc.

Like here: iPS Server fĂźr die Hutschiene im Eigenbau - IP-Symcon - IP-Symcon Community
Im not able to use CLI like “sudo raspi-config”

How am I able to get this working with Home Assistant directly installed to my Raspberry Pi 5 ? From the comand line I want use the commands to activete SPI.

Can someone help me? Can someone write the code to display this information for me? Im willing to pay this work, since im not very clever with this :slight_smile:

If you are interested in this paid work (the layout and script to display the HW status like on the photo above) contact me over DM or david.mueller@protonmail (dot) com

3

What is Error 422? Im getting it when I want to add the link to the display and case I bought. Is there a limit for links in one reply? Why doesnt tell it, instead of only “error 422”?

The Case: RPI5 CASE DIN1: Gehäuse fßr Raspberry Pi 5, Hutschiene, grau/trans. bei reichelt elektronik kaufen
The Display: https://de.aliexpress.com/item/1005007544255423.html

4

Since I can only post 2 links per Reply I have to make another one :frowning:

In this article the plan is the same but the guy uses an 56 ohm resistor for the LED pin, why?

\ EDIT:

I see its probably not possible.

HA OS vs Supervised Quote by 123 Taras Regular “The underlying operating system in Home Assistant OS is meant to be exclusively for hosting the Home Assistant ecosystem. It updates itself automatically, doesn’t allow installing other applications, and provides little to no control of its behavior.”

So my next question:

  • Is it possible to ask for official implementation of SPI/GPIO use directly in HA OS?
  • Like can I ask somewhere for this as feature request?
  • And also ask for a little official script that displays basic information about system health on the SPI display?

Thanks and kind regards,
David