

Numpad
My first keyboard pcb for a standard numpad layout.
- Size
- 76.3 × 122.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 45
- Nets
- 33
- Pads
- 174
- Tracks, vias
- 367, 0
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 6 Jul 2020
- Updated
- 23 Dec 2020
Overview
Numpad is an open-source printed circuit board by thecapt, from the thecapt/custom-numpad repository on GitHub. It is a 2-layer board of 76.3 × 122.8 mm with 45 parts on 33 nets, routed with 367 tracks and 0 vias.
Its parts include 21 diodes, 2 resistors, 1 IC and 1 switch. It belongs with the keyboards and input boards and the AVR (ATmega, ATtiny) boards of this library.
README
README.mdcustom-numpad
My first keyboard pcb for a standard numpad layout. Uses a 4x5 array of MX Cherry compatable switches for better customisability over a standard 17-key numpad. The design is based on the discipad but was modified to use a full array and a Pro Micro 5V.
Parts
45| Qty | Value | Footprint | References |
|---|---|---|---|
| 20 | 1N4148 | USER_FOOTPRINTS:D_DO-35_SOD27_P5.08mm_Horizontal | D0, D1, D2, D3, D4, D5, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19 +4 |
| 20 | MX-NoLED | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | MX0, MX1, MX2, MX3, MX4, MX5, MX10, MX11, MX12, MX13, MX14, MX15, MX16, MX17, MX18, MX19 +4 |
| 1 | 1.5k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 1 | 10K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R6 |
| 1 | POWER | LED_THT:LED_D3.0mm | LED1 |
| 1 | ProMicro | Keebio-Parts:ArduinoProMicro | U1 |
| 1 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | SW1 |
Questions
How big is the Numpad PCB?
It measures 76.3 × 122.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Numpad use?
45 parts. 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 Numpad KiCad files?
From the thecapt/custom-numpad repository on GitHub, at the commit this page was made from: the board is numpad.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Numpad design in my own project?
Its repository states no licence, so its author keeps all rights: ask thecapt before reusing the design.
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