Bumble Berry Pi

A cheap, easy-to-build Raspberry Pi Handheld Cyberdeck

Why Another Cyberdeck?

I wanted a Clockwork Pi uConsole, but didn’t want to wait 90 business days
I like the tactile feeling of a mini keyboard
I wanted something small enough to fit into a pants pocket, so I can easily take it anywhere, but with a large enough screen to do useful things like writing little programs, running scripts, etc
I wanted to build this quickly & cheaply, with as many off-the-shelf components as possible
I mostly boot to the terminal interface and use tmux to manage mutliple terminal windows, but I occasionally use the GUI
I wanted to use the Raspberry Pi's I already owned (i.e. an old 3b+), rather than having to buy a new compute module

Key Features

4.3” Touch Screen Display
Nice sized QWERTY keypad
37 Watt-hour battery (all day battery life with Raspberry Pi 3b+)
Only 2 3D-Printed Parts
Minimal assembly required
All parts available on Amazon
Cost: ~$60 worth of Amazon parts, not including the raspberry pi

Parts List

Part	QTY	Cost	Buy Link	Notes
Raspberry Pi	1	$50	Amazon	Pick your favorite. I picked a 3b+ for low cost and low power usage
4.3” Touch Screen Display	1	$38	Amazon
Mini Bluetooth keyboard	1	$23	Amazon
37 Watt-Hr USB Power Bank	1	$19	Amazon	Comes with short USB-C cable
USB-C to Micro-USB U-Shaped Adapter	1	$10	Amazon
USB-C Right Angle Adapter	1	$9	Amazon
M3x10mm Countersunk Head Bolt	6	Amazon
M2.5x8mm Socket Head Bolt	4	Amazon
M3 Threaded Inserts	6	Amazon
2" Kapton Tape	1 ft	Amazon	You could use another type of double-sided tape
bumble-berry-pi-enclosure-A-v3.STL	1	Download from this repo an print on a 3D printer using PLA
bumble-berry-pi-enclosure-B-v3.STL	1	Download from this repo an print on a 3D printer using PLA

Tools Required

Small phillips screw driver
M2.5mm hex driver
Soldering iron

Assembly Instructions

Please note: Assembly instructions are a work in progress. Please let me know if you'd like additional instructions/videos, etc and I will do my best to provide them.

3D print the two enclosure parts in PLA
Insert the 6 threaded inserts using a soldering iron (I always love this part)
Attach the raspberry pi to the screen using 4 phillips screws
Plug the ribbon cable into the rapsberry pi & display
Attach the screen to the front eclosure using 4 M2.5x6mm socket head bolts
Place the front enclosure face down on a table and insert the keyboard
Add a piece of double-sided kapton tape to the back of the keyboard
Place the USB power bank in the front enclosure
Add a piece of double-sided kapton tape to the back of the power bank
Route the USB cables & adapters as shown
Screw the enclosure back onto the enclosure front using 6 M3x10mm countersunk head bolts