2 layers
2 layers81.9 × 101 mm
Numpad
pzerg/macropad- Size
- 81.9 × 101 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 47
- Nets
- 61
- Pads
- 207
- Tracks, vias
- 176, 5
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 8 Oct 2021
- Updated
- 23 Jun 2022
Overview
Numpad is an open-source printed circuit board by pzerg, from the pzerg/macropad repository on GitHub. It is a 2-layer board of 81.9 × 101 mm with 47 parts on 61 nets, routed with 176 tracks and 5 vias.
It is built around the ATMEGA32U2-AU. Its parts include 18 switches, 17 diodes, 6 resistors, 4 capacitors and 1 IC. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
1Parts
47| Qty | Value | Footprint | References |
|---|---|---|---|
| 17 | D_Small | keyboard_parts:D_SOD123W_hand | D1, D2, D3, D4, D5, D7, D8, D10, D11, D13, D14, D15, D16, D18, D19, D20 +1 |
| 14 | SW_SPST | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3, SW4, SW7, SW8, SW9, SW10, SW11, SW13, SW14, SW15, SW16, SW18 |
| 4 | 10k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2, R5, R6 |
| 2 | 0.1uF | keyboard_parts:C_1608 | C4, C5 |
| 2 | 22 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3, R4 |
| 2 | SW_SPST | Button_Switch_Keyboard:SW_Cherry_MX_2.00u_Vertical_PCB | SW19, SW20 |
| 1 | 10uF | keyboard_parts:C_1608 | C6 |
| 1 | 1uF | keyboard_parts:C_1608 | C1 |
| 1 | ATMEGA32U2 | keyboard_parts:QFP32 | U1 |
| 1 | SW_Push | Button_Switch_SMD:SW_SPST_TL3342 | SW22 |
| 1 | SW_SPST | Button_Switch_Keyboard:SW_Cherry_MX_2.00u_PCB | SW5 |
| 1 | USB4085-GF-A_REVA | USB4085-GF-A_REVA:GCT_USB4085-GF-A_REVA | J1 |
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Questions
How big is the Numpad PCB?
It measures 81.9 × 101 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Numpad use?
47 parts, built around the ATMEGA32U2-AU. 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 pzerg/macropad repository on GitHub, at the commit this page was made from: the board is numpad/numpad.kicad_pcb and its schematic macropadv2/macropadv2.kicad_sch. 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 pzerg before reusing the design.