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Numpad

vladimir-aubrecht·Keyboard·pcb/Numpad Keyboard/Numpad.kicad_pcb

Numpad PCB layout, top view — open source board by vladimir-aubrecht

About the Numpad PCB

Numpad is an open source PCB design by vladimir-aubrecht, published on GitHub under the Custom license license. It is a 2-layer board measuring 82.5 × 128 mm, with 64 components from 43 distinct parts.

Other key parts include the MAX7301ATL+ and IS31FL3743-QF. By type, the board carries 33 diodes, 6 resistors, 3 ICs, 3 capacitors and 2 connectors.

It belongs with the keyboards designs in this gallery.

From the project

Custom made TKL RGB HotSwap keyboard.

This project is trying to build following: - :whitecheckmark: TKL hotswap keyboard for Cherry MX switches. - :whitecheckmark: RGB LEDs under each switch (individually controllable from connected device). - :whitecheckmark: Bluetooth 5.0. - :whitecheckmark: Charging through USB-C. - :construction: Anodized aluminium frame of Filco Majestouch 2 design. - :whitecheckmark: Part of case with connector is removable & replacable (to replace either connector or whole microcontroller for any other).

Numpad, from the project README
From the project README

Main components on the Numpad

MAX7301ATL+IS31FL3743-QF

Numpad bill of materials (BOM)

64 components, 43 distinct parts.

QtyPartRefs
1
MAX7301ATL+
Maxim Integrated
U1
2
IS31FL3743-QF
Microchip Tech
U2, U3
2
Conn_01x04
GCT (GLOBAL CONNECTOR TECHNOLOGY)
J1, J2
1
.
Kailh
K_DOT1
1
8
Kailh
K_EIGHT1
1
ENTER
Kailh
K_ENTER1
1
5
Kailh
K_FIVE1
1
4
Kailh
K_FOUR1
1
-
Kailh
K_MINUS1
1
9
Kailh
K_NINE1
1
NUMPAD
Kailh
K_NUMPAD1
1
1
Kailh
K_ONE1
1
+
Kailh
K_PLUS1
1
7
Kailh
K_SEVEN1
1
6
Kailh
K_SIX1
1
/
Kailh
K_SLASH1
1
*
Kailh
K_STAR1
1
3
Kailh
K_THREE1
1
2
Kailh
K_TWO1
1
0
Kailh
K_ZERO1
Show 23 more
QtyPartRefs
1
LED_NUMPAD
Everlight Elec
D1
1
LED_4
Everlight Elec
D3
1
LED_1
Everlight Elec
D4
1
LED_0
Everlight Elec
D5
1
LED_SLASH
Everlight Elec
D6
1
LED_8
Everlight Elec
D7
1
LED_5
Everlight Elec
D8
1
LED_2
Everlight Elec
D9
1
LED_STAR
Everlight Elec
D10
1
LED9
Everlight Elec
D11
1
LED_6
Everlight Elec
D12
1
LED_3
Everlight Elec
D13
1
LED_DOT
Everlight Elec
D14
1
LED_MINUS
Everlight Elec
D15
1
LED_PLUS
Everlight Elec
D16
1
LED_ENTER
Everlight Elec
D17
17
D
MDD（Microdiode Electronics）
D18, D19, D20, D21, D22, D23, D24, D25 +9
1
C 1uF
Samsung Electro-Mechanics
C1
1
C_100nF
Samsung Electro-Mechanics
C2
1
C_47nF
YAGEO
C5
1
R_39_kOhm
UNI-ROYAL(Uniroyal Elec)
R1
2
R
UNI-ROYAL(Uniroyal Elec)
R2, R3
3
R 10 kOhm
UNI-ROYAL(Uniroyal Elec)
R4, R5, R6

Numpad design files

The KiCad project lives in the vladimir-aubrecht/Keyboard repository on GitHub; these links point at the commit this page was built from.

Numpad: common questions

How big is the Numpad PCB?

The Numpad measures 82.5 × 128 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Numpad?

64 components, from 43 distinct parts. The full bill of materials is listed on this page.

Where can I download the Numpad design files?

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

Can I use the Numpad design in my own project?

It is published under Custom license, which limits how it may be reused; read the license before building on it.

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