# Raspberry Pi Setup

This is a quick guide to set up a Raspberry Pi for IO control shenanigans.

Pick an SD card and write an image plus SSH config on your laptop.

## Image

<https://www.raspberrypi.com/software/operating-systems/>

Raspberry OS Lite, possibly 64-bit for Pi 3 or later

`unxz` the image, then `dd`; e.g.:

```
sudo dd status=progress \
    if=2024-11-19-raspios-bookworm-armhf-lite.img \
    of=/dev/mmcblk0
```

## SSH

- copy .ssh dir; `cp -r ssh-dir rootfs/home/pi/.ssh`
- `touch bootfs/ssh`

## Interfaces

This is done from the running system.

- `raspi-config` -> `3 Interface Options`
- configure as you need :)
- reboot to apply (config is written to `/boot/cmdline.txt` /
  `/boot/config.txt`)

## Scripts

Do your Python foo...

## Services

Example:

<https://github.com/torfsen/python-systemd-tutorial/blob/master/python_demo_service.service>

You probably need the type `exec` or `simple`:

<https://www.freedesktop.org/software/systemd/man/latest/systemd.service.html>