2 layers44.5 × 72.7 mm
OSO SWAT C1-jig
joeycastillo/Sensor-Watch
A board replacement for the classic Casio F-91W wristwatch
28 parts2.1k
2 layers74 × 87 mm
Freezepad pcb
FreezeManny/freezepadPro Micro, Choc V1 based Macro/Numpad
- Size
- 74 × 87 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 28
- Nets
- 25
- Pads
- 191
- Tracks, vias
- 184, 6
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 2 Feb 2026
- Updated
- 21 Jul 2026
Overview
Freezepad pcb is an open-source printed circuit board by FreezeManny, from the FreezeManny/freezepad repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 74 × 87 mm with 28 parts on 25 nets, routed with 184 tracks and 6 vias.
It belongs with the keyboards and input boards of this library.
README
README.mdFreezepad
This repository contains all files and configuration for the Freezepad, a custom wireless 20-key (5×4) low-profile macropad built completely from scratch. The goal was to create the smallest possible macropad footprint — achieved by placing the Nice!Nano v2 controller directly below the switches and eliminating diodes entirely. It runs ZMK firmware and is housed in a custom 3D printed case.
Table of Contents
Hardware Components
| Component | Item | Notes |
|---|---|---|
| PCB | Custom Freezepad PCB | Ordered from JLCPCB. Files in /pcb/. |
| Small Electronics | 1x Push Button 6x2mm, 20x Kailh Choc V1 Hotswap Sockets, 1x Battery Switch | Ordered from AliExpress. |
| Small Case Parts | 3x M3 Heat Insert, 3x M3 Screw | For securing the PCB to the case. |
| Controller | 1x Nice!Nano v2 (or compatible) | Wireless connectivity via Bluetooth. |
| Battery | 1x 102050 LiPo (1000mAh) | Fits in the custom case. |
| Switches | 20x Kailh Choc V1 | e.g., Sunset, Robins. |
| Keycaps | 20x Choc V1 Keycaps | e.g., MBK Blank Choc Keycaps. |
| Case | Custom 3D Printed Case | Files are located in the /case directory. |
PCB
The custom PCB was designed using Ergogen. The files are located in the /pcb/ directory.
Firmware (ZMK)
The Freezepad runs on ZMK Firmware, designed for wireless keyboards and macropads.
Configuration
- ZMK Config: The main configuration files are located in the
/config/directory.
Configure, Build & Flash
- Configuration: Use the Keymap Editor
- Build: Standard GitHub Actions (see
build.yaml) - Flash: Consult the Nice!Nano documentation
3D Printed Case
A custom case designed in Fusion360. Source and STEP files are provided in /case.
Recommended Print Settings
- Material: ABS / ASA / PETG preferred for better heat resistance
- Outer Walls: Minimum of 3
- Layer Height: 0.2mm
- Infill: 15–20%
- Supports: Not required
Build Notes
- ControllerPlacement: The Controller sits under the switches. Ensure that you trim the soldered Pins flush, otherwise swtiches will not plug in flush.
- Battery Switch: The battery switch is mounted on the PCB and accessible from the side of the case.
Parts
28| Qty | Value | Footprint | References |
|---|---|---|---|
| 20 | PG1350 | S1, S2, S3, S4, S5, S10, S11, S12, S13, S14, S15, S16, S17, S18, S19, S20 +4 | |
| 1 | kbd:ResetSW | B1 | |
| 1 | ceoloide:battery_connector_jst_ph_2 | JST1 | |
| 1 | E73:SPDT_C128955 | T1 | |
| 1 | ProMicro | MCU1 |
The 24 most common of 28 parts.
Questions
How big is the Freezepad pcb PCB?
It measures 74 × 87 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Freezepad pcb use?
28 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 Freezepad pcb KiCad files?
From the FreezeManny/freezepad repository on GitHub, at the commit this page was made from: the board is pcb/freezepad-pcb.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Freezepad pcb design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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