HardLabs

Keyswitch

JeremyJStarcher·retro-keys·keyboards/atari-a8/kicad/keyswitch_pcb/keyswitch_pcb.kicad_pcb

Keyswitch PCB layout, top view — open source board by JeremyJStarcher

About the Keyswitch PCB

Keyswitch is an open source PCB design by JeremyJStarcher, published on GitHub. It is a 2-layer board measuring 357.2 × 140.5 mm, with 160 components from 156 distinct parts.

Other key parts include the MAX7219. By type, the board carries 76 diodes, 71 switches, 4 connectors, 4 capacitors, 3 resistors and 2 ICs.

It belongs with the keyboards and retro computing designs in this gallery.

From the project

Retro Keyboards for emulators

The purpose of this project is to set up a tools to make it easier to create a custom keyboard to use retro-style computers on modern emulators.

This includes the PCB, keycaps and (in time) a case.

Python 3.10 OpenSCAD KiCad VcCode (other editors will work but may require configuration)

All of the Python scripts run in a virtual environment which will allow them to access privately installed libraries.

Main components on the Keyswitch

MAX7219

Keyswitch bill of materials (BOM)

160 components, 156 distinct parts.

QtyPartRefs
2
MAX7219
U101, U102
1
Development Connector
J102
1
I2C DISPLAY
J103
1
Jumper Connector
J104
1
Primary Connector
J105
1
RESET
SW101
1
ESC
SW200
1
1
SW201
1
2
SW202
1
3
SW203
1
4
SW204
1
5
SW205
1
6
SW206
1
7
SW207
1
8
SW208
1
TAB
SW209
1
Q
SW210
1
W
SW211
1
E
SW212
1
R
SW213
Show 136 more
QtyPartRefs
1
T
SW214
1
Y
SW215
1
U
SW216
1
I
SW217
1
CONTROL
SW218
1
A
SW219
1
S
SW220
1
D
SW221
1
F
SW222
1
G
SW223
1
H
SW224
1
J
SW225
1
K
SW226
1
LSHIFT
SW227
1
Z
SW228
1
X
SW229
1
C
SW230
1
V
SW231
1
B
SW232
1
N
SW233
1
M
SW234
1
COMMA
SW235
1
9
SW236
1
0
SW237
1
LT
SW238
1
GT
SW239
1
BS
SW240
1
BREAK
SW241
1
O
SW242
1
P
SW243
1
DASH
SW244
1
INV
SW245
1
C_UP
SW246
1
CAPS
SW247
1
ASTRIX
SW248
1
PLUS
SW249
1
SEMI
SW250
1
L
SW251
1
EQUAL
SW252
1
RETURN
SW253
1
SPACE
SW254
1
FN
SW255
1
PERIOD
SW256
1
SLASH
SW257
1
RSHIFT
SW258
1
C_LEFT
SW259
1
C_DOWN
SW260
1
C_RIGHT
SW261
1
SELECT
SW262
1
OPTION
SW263
1
RESET
SW264
1
HELP
SW265
1
POWER
SW266
1
MENU
SW267
1
TURBO
SW268
1
START
SW269
1
JS1_UP
D101
1
JS1_TRIG
D102
1
JS1_DOWN
D103
1
JS1_LEFT
D104
1
JS1_RIGHT
D105
1
LED
D106
1
ESC
D200
1
1
D201
1
2
D202
1
3
D203
1
4
D204
1
5
D205
1
6
D206
1
7
D207
1
8
D208
1
TAB
D209
1
Q
D210
1
W
D211
1
E
D212
1
R
D213
1
T
D214
1
Y
D215
1
U
D216
1
I
D217
1
CONTROL
D218
1
A
D219
1
S
D220
1
D
D221
1
F
D222
1
G
D223
1
H
D224
1
J
D225
1
K
D226
1
LSHIFT
D227
1
Z
D228
1
X
D229
1
C
D230
1
V
D231
1
B
D232
1
N
D233
1
M
D234
1
COMMA
D235
1
9
D236
1
0
D237
1
LT
D238
1
GT
D239
1
BS
D240
1
BREAK
D241
1
O
D242
1
P
D243
1
DASH
D244
1
INV
D245
1
C_UP
D246
1
CAPS
D247
1
ASTRIX
D248
1
PLUS
D249
1
SEMI
D250
1
L
D251
1
EQUAL
D252
1
RETURN
D253
1
SPACE
D254
1
FN
D255
1
PERIOD
D256
1
SLASH
D257
1
RSHIFT
D258
1
C_LEFT
D259
1
C_DOWN
D260
1
C_RIGHT
D261
1
SELECT
D262
1
OPTION
D263
1
RESET
D264
1
HELP
D265
1
POWER
D266
1
MENU
D267
1
TURBO
D268
1
START
D269
2
47uF
C101, C103
2
0.1uF
C102, C104
2
22K
R101, R102
1
220R
R103

Keyswitch design files

The KiCad project lives in the JeremyJStarcher/retro-keys repository on GitHub; these links point at the commit this page was built from.

Keyswitch: common questions

How big is the Keyswitch PCB?

The Keyswitch measures 357.2 × 140.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Keyswitch?

160 components, from 156 distinct parts. The full bill of materials is listed on this page.

Where can I download the Keyswitch design files?

From the JeremyJStarcher/retro-keys repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Keyswitch design in my own project?

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

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