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2 layers91 × 55 mmSwitch42, the printed circuit board in 3D

A 'meishi'-sized experimental 4-keypad with audio-sync lightshow

Size
91 × 55 mm
Copper layers
2
Thickness
1.6 mm
Parts
35
Nets
44
Pads
147
Tracks, vias
531, 14
Pours
3
Routed
Yes
KiCad
KiCad 5 (file 20171130)
Created
13 May 2019
Updated
16 Jun 2020

Overview

Switch42 is an open-source printed circuit board by zk-phi, from the zk-phi/KP-19 repository on GitHub. It is a 2-layer board of 91 × 55 mm with 35 parts on 44 nets, routed with 531 tracks and 14 vias.

It is built around the SK6812MINI-E. Its parts include 19 inductors, 5 switches, 3 connectors, 2 resistors and 1 capacitor. It belongs with the keyboards and input boards and the AVR (ATmega, ATtiny) boards of this library.

Main components

1

Parts

35
QtyValueFootprintReferences
10SK6812MINIphi-kbd-library:SK6812SIDE-irreversibleL2, L4, L6, L8, L10, L11, L12, L13, L14, L15
5SK6812MINIphi-kbd-library:SK6812MINI-underglow-irreversibleL1, L3, L5, L7, L9
4SK6812MINIphi-kbd-library:SK6812MINI-irreversibleL16, L17, L18, L19
4SW_PUSHphi-kbd-library:MX_1.00u-irreversibleSW1, SW2, SW4, SW5
2MJ-4PP-9phi-kbd-library:MJ-4PP-9-irreversibleJ2, J3
2RResistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_HorizontalR1, R2
1CCapacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mmC1
1Conn_01x02phi-kbd-library:2padsJ1
1DDiode_THT:D_DO-41_SOD81_P7.62mm_HorizontalD1
1LOGOparipi:UntitledG***
1LOGOparipi:Untitled2G***
1ProMicrophi-kbd-library:ProMicro_Reversed_Conthrough-irreversibleU1
1Q_NPN_ECBPackage_TO_SOT_THT:TO-92Q1
1SW_PUSHphi-kbd-library:ResetSW-irreversibleSW7

Questions

How big is the Switch42 PCB?

It measures 91 × 55 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Switch42 use?

35 parts, built around the SK6812MINI-E. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Switch42 KiCad files?

From the zk-phi/KP-19 repository on GitHub, at the commit this page was made from: the board is pcb/switch42.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Switch42 design in my own project?

Its repository states no licence, so its author keeps all rights: ask zk-phi before reusing the design.

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