Elsewhere

Livestream picture frame

Parts

Part	Link	Quantity	Unit Price	Price
Raspberry Pi Zero 2 W	Adafruit	1	$15.00	$15.00
Pimoroni HDMI 10" IPS LCD Screen Kit	Adafruit	1	$139.95	$139.95
HDMI Ribbon Cable, 30 cm	Adafruit	1	$2.75	$2.75
HDMI Plug Adapter	Adafruit	1	$6.50	$6.50
Mini HDMI Plug Adapter	Adafruit	1	$6.50	$6.50
ATXRaspi R3	LowPowerLab	1	$17.95	$17.95
Jumper Wire	LowPowerLab	4	$0.74 ($2.95 for 4)	$2.95
D-Ring Picture Hanger, M4		2
USB-C Panel Mount	eBay	1	$6.29	$6.29
USB-C to Micro USB Adapter	Amazon	1	$6.99	$6.99
Micro USB Splitter Cable	Amazon	1	$6.79	$6.79
microSD Card, 32GB	Amazon	1	$7.99	$7.99
Female to Female Dupont Wire, 30cm	Amazon	6	$0.08 ($8.99 for 120)	$0.48
M3 Standoff, 10mm	McMaster-Carr	8	$1.24	$9.92
4-40 Socket Head Screw, Low-Profile, 1/4"	McMaster-Carr	2	$1.55 (Pack of 10)	$3.10
M3 Socket Head Screw, Low-Profile, 12mm	McMaster-Carr	8	$0.11 (Pack of 25)	$0.22
M3 Socket Head Screw, Low-Profile, 6mm	McMaster-Carr	8	$0.30 (Pack of 25)	$0.60
M2.5 Socket Head Screw, 6mm	McMaster-Carr	18	$0.06 ($6.00 for 100)	$1.08
M2.5 Socket Head Screw, 4mm	McMaster-Carr	18	$0.30 ($7.43 for 25)	$5.40
M2.5 Socket Head Screw, 10mm	McMaster-Carr	2	$0.07 ($6.54 for 100)	$0.14
M2.5 Nut	McMaster-Carr	2	$0.08 ($7.18 for 100)	$0.16
M2.5 Washer, 0.5mm	McMaster-Carr	6	$0.03 ($2.57 for 100)	$0.18
M4 Socket Head Screw, Low-Profile, Partially Threaded, 10mm	McMaster-Carr	2	$1.48	$2.96
M4 Washer, 0.8mm	McMaster-Carr	2	$0.04 ($3.14 for 100)	$0.08
M4 Locknut	McMaster-Carr	2	$0.08 ($7.67 for 100)	$0.16
M2.5 Standoff, 6mm	Digi-Key	18	$0.34 ($16.95 for 50)	$6.12
Laser-Cut Parts	Ponoko			$118.99
Controller Board	Oshpark	1	$3.49 ($10.45 for 3)	$3.49
Micro SD to Micro SD Extension Cable, 25cm	AliExpress	1	$3.00	$3.00
				$375.74

Wiring

Software Installation

1. Install Raspberry Pi OS Lite (Bullseye).

2. Add the package repository to /etc/apt/sources.list:

   deb [trusted=yes] http://packages.inseven.co.uk/raspbian/ ./

3. Update the dtoverlay property in /boot/config.txt to:

   dtoverlay=vc4-fkms-v3d

   (See https://forums.raspberrypi.com/viewtopic.php?t=324835.)

4. Add fbcon=map:2 disable_splash=1 to /boot/cmdline.txt.

   These changes are as follows:

   • fbcon=map:2 – Redirects the console during boot to ensure it doesn't appear on the HDMI display.
   • disable_splash=1 – Disable the boot splash screen.

5. Disable the Serial Port and SPI:

   sudo raspi-config

   • Disable Serial Port
     • Interface Options
     • Serial Port
     • Login Shell: No
     • Serial Port Hardware: No
   • Disable SPI
     • Interface Options
     • SPI
     • Enabled: No

6. Reboot:

   sudo reboot

7. Update and upgrade Raspbian, and install Elsewhere:

   sudo apt update
   sudo apt upgrade --yes
   sudo apt install elsewhere --yes

8. Assuming everything has gone to plan, Elsewhere should now be running.

Unattended Upgrades

1. Enable all unattended upgrades by uncommenting the following lines in /etc/apt/apt.conf.d/50unattended-upgrades:

   Unattended-Upgrade::Origins-Pattern {
           // ...
           "origin=Debian,codename=${distro_codename}-updates";
           "origin=Debian,codename=${distro_codename}-proposed-updates";
           // ..
   }
   

2. Reboot:

   sudo reboot

Troubleshooting

Device takes too long to shutdown and ATXRaspi doesn't cut power

• Re-enable the console by removing fbcon=map:2 from /boot/cmdline.txt.
• Check the the shutdown logs; are any services taking a long time to stop?

Tailscale doesn't takes too long to stop

Customise the Tailscale service to shorten the shutdown timeout:

• Override the service:

  sudo systemctl edit tailscaled.service

• Add the following section:

  [Service]
  TimeoutSec=5
  

Builds

Elsewhere is an iterative project, meaning I've put together a number of prototypes along the way. The most recent one still has the 4:3 aspect ratio, and has been happily showing us views from the ISS for the last few months.