Numpad
About the Numpad PCB
Numpad is an open source PCB design by lllNuggetslll, published on GitHub. It is a 2-layer board measuring 76.5 × 114.5 mm, with 31 components from 7 distinct parts.
By type, the board carries 21 diodes, 1 connector, 1 LED and 1 resistor.
It belongs with the keyboards, iot & wireless and power & battery designs in this gallery.
From the project
A 21-key low-profile numpad: 4 columns × 6 rows, with three 2u keys ("0", "+", "Enter").
A 21-key low-profile numpad: 4 columns × 6 rows, with three 2u keys ("0", "+", "Enter").
- Controller: nice!nano v2, running ZMK over Bluetooth. - Switches: Gateron KS-33 low-profile switches in hotswap sockets. - Battery: a 301230 LiPo with a low-battery LED. - Case: a tilted 3D-printed case with a separate switch plate.
It's based on ceoloide's "not about money" ergogen design. The PCB is generated with ergogen, routed with freerouting, and checked in KiCad 8. The case is generated from the board itself, so the two always match.
Numpad bill of materials (BOM)
31 components, 7 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | — | battery_connector_jst_ph_2 | JST1 |
| 5 | — | mounting_hole_npth | MH1, MH2, MH3, MH4, MH5 |
| 1 | — | power_switch_smd_side | PWR1 |
| 1 | — | reset_switch_smd_side | RST1 |
| 1 | — | smd_0603 | LED1 |
| 21 | — | diode_tht_sod123 | D1, D2, D3, D4, D5, D6, D7, D8 +13 |
| 1 | — | smd_0603 | R1 |
Numpad design files
The KiCad project lives in the lllNuggetslll/Numpad-Build-1 repository on GitHub; these links point at the commit this page was built from.
- Layoutkicad/numpad.kicad_pcb
- Schematickicad/numpad.kicad_sch
Numpad: common questions
How big is the Numpad PCB?
The Numpad measures 76.5 × 114.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Numpad?
31 components, from 7 distinct parts. The full bill of materials is listed on this page.
Where can I download the Numpad design files?
From the lllNuggetslll/Numpad-Build-1 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?
The repository has no license, so all rights stay with lllNuggetslll. Use it as a reference, and ask the author before reusing the design.
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