HardLabs

Roamyboard

nevyn·roamyboard·electronics/KeyModule/KeyModule.kicad_pcb

Roamyboard PCB layout, top view — open source board by nevyn

About the Roamyboard PCB

Roamyboard is an open source PCB design by nevyn, published on GitHub. It is a 2-layer board measuring 16.9 × 100 mm, with 18 components from 6 distinct parts.

Other key parts include the 74HC165. By type, the board carries 5 switches, 5 resistors, 1 IC and 1 capacitor.

It belongs with the keyboards and wearables designs in this gallery.

From the project

Pants-mounted keyboard. Yeah. zmk, cadquery, kicad.

A pants-mounted keyboard that I can use while walking and sitting. Original idea was to literally sew it into pants, but that’s too impractical; now I’m imagining it as a belt/strap you put on top of your pants to make it wearable.

Made by Nevyn Bengtsson 2012-2026 (this is not the first iteration 😅).

My current approach is to make modular column modules that become angled to curve around the leg by having one diagonal side that then clicks into the next module, creating a curve per column. A nice!nano in a rightmost MCU column module, and a terminator in the leftmost column; and then a…

Roamyboard, from the project README
From the project README

Main components on the Roamyboard

74HC165

Roamyboard bill of materials (BOM)

18 components, 6 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
74HC165
U1
3
HX PM2.54-1x3P WT
J_LEFT1, J_LEFT2, J_LEFT3
3
HX PZ2.54-1x3P WT
J_RIGHT1, J_RIGHT2, J_RIGHT3
5
SW_Push
SW1, SW2, SW3, SW4, SW5
1
100nF
C1
5
10K
R1, R2, R3, R4, R5

Roamyboard design files

The KiCad project lives in the nevyn/roamyboard repository on GitHub; these links point at the commit this page was built from.

Roamyboard: common questions

How big is the Roamyboard PCB?

The Roamyboard measures 16.9 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Roamyboard?

18 components, from 6 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Roamyboard design files?

From the nevyn/roamyboard repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Roamyboard design in my own project?

The repository has no license, so all rights stay with nevyn. Use it as a reference, and ask the author before reusing the design.

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