Preparation

Gather the required parts and tools, then separate the breakaway tabs from the main PCB.

Parts Included in the Kit

Part	Quantity	Notes
Main PCB	1	Diodes and LEDs are pre-installed
Top case	1	Aluminum or resin
Bottom case	1	Aluminum or resin
Pan-head screws (M2 × 3 mm)	4	To secure the USB port adapter
Hex-socket flat-head bolts (M3 × 8 mm)	4	To secure the top and bottom cases

Parts to Prepare Separately

Part	Quantity	Notes
RP2040-Tiny	1	Use the version bundled with the USB port adapter
USB Type-C cable	1
Kailh Choc switch sockets	48
Kailh Choc V2 compatible switches	48	3-pin type (one center post and two metal pins)
Low-profile keycaps (1U)	48	Compatible with the switches above
Rubber feet	Optional

Caution

The RP2040-Tiny is also sold without the USB port adapter.
Make sure to select the right version.

Caution

Switches with four pins (one center post and three metal pins) are not compatible: both the pin count and the height of the plate section differ.
Make sure to select the right version.

Tools

Tool	Notes
Pliers
File
Solder
Soldering iron	An iron with temperature control is recommended
Flux	Helpful for soldering
Tweezers	Helpful for soldering
Screwdriver for M2 screws
Hex key for M3 bolts

Information

The main PCB has a leaded HASL surface finish.

Separating the Breakaway Tabs

1. Use pliers to break off the tabs at the top and bottom of the main PCB along the perforated lines.

2. File the remaining edges until they are reasonably flat.