Use systemd unit file for service management

[geerlingguy]

Instead of using rc.local and recompiling the binary every reboot, it seems like it may be more efficient to use systemd to manage the LCD display service.

That's what I did by creating the following unit file at /usr/lib/systemd/system/lcd_display.service:

[Unit]
Description=LCD Library

[Service]
WorkingDirectory=/opt/SKU_RM0004
ExecStart=/opt/SKU_RM0004/display
Restart=always

[Install]
WantedBy=multi-user.target

Then I ran sudo systemctl daemon-reload to reload the daemon, sudo systemctl start lcd_display to start the display, and sudo systemctl enable lcd_display to make sure it starts at boot.

This setup assumes you're running the latest version of Raspberry Pi OS, Debian 11, or Ubuntu 20.04 or later.

[TiVoHomeUser]

Nice Thanks
You may be interested in my branch https://github.com/TiVoHomeUser/SKU_RM0004 I added a trap that blanks the screen on shutdown.
I also added some status color to the display info

[gemini0672]

Thanks, this also worked perfect on the Raspberry PI 4B running Fedora 37 as well.