HardLabs

Sg48key

nobodywasishere·mmp·firmware/kicad/sg48key/sg48key/sg48key.kicad_pcb

Sg48key PCB layout, top view — open source board by nobodywasishere

About the Sg48key PCB

Sg48key is an open source PCB design by nobodywasishere, published on GitHub. It is a 2-layer board measuring 242.9 × 76.2 mm, with 110 components from 6 distinct parts.

Other key parts include the 102010388. By type, the board carries 55 diodes, 47 switches and 2 ICs.

It belongs with the keyboards designs in this gallery.

From the project

TinyGo 0.29 or later is required to build tinygo-keyboard 0.2.0

TinyGo 0.29 or later is required to build tinygo-keyboard 0.2.0

key input squared matrix scan matrix scan duplex-matrix scan rotary encoder GPIO UART Shifter (tinygo.org/x/drivers/shifter) layer feature by mod key mouse click / mouse wheel support TRRS (UART) support Vial Keymap / Layers Matrix testers

The following microcontrollers are supported.

files ./kicad/sgkb for KiCad 7.0 KiCanvas : sgkb-0.4.0 left KiCanvas : sgkb-0.4.0 right KiCanvas : sgkb-0.3.0 left KiCanvas : sgkb-0.3.0 right

Sg48key, from the project README
From the project README

Main components on the Sg48key

102010388

Sg48key bill of materials (BOM)

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

QtyPartRefs
1
102010388
U1
1
~
U2
6
MountingHole
H1, H2, H3, H4, H5, H6
47
SW_PUSH
S0, S1, S2, S3, S4, S5, S6, S7 +39
12
1N4148
D1, D2, D3, D4, D5, D6, D9, D10 +4
43
1N4148
D17, D18, D19, D20, D21, D22, D25, D26 +35

Sg48key design files

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

Sg48key: common questions

How big is the Sg48key PCB?

The Sg48key measures 242.9 × 76.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Sg48key?

110 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 Sg48key design files?

From the nobodywasishere/mmp 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 Sg48key design in my own project?

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

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