Iskra Numpad |Handwired, Customizable, Low profile
Print Profile(1)
Description
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Iskra is a compact 10-key numpad with a footprint of 82 × 60 mm and a total height of just 22 mm.
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It uses low-profile Kailh Choc switches, powered by a Pro Micro nRF52840 (nice!nano v2 clone) and supports both wired and Bluetooth operation.
It’s designed primarily for wired use over USB-C, but when powered from a PC or power bank it can also function as a Bluetooth numpad.
The firmware is based on ZMK and is fully open source.
Iskra supports ZMK Studio, allowing users to customize keymaps without manual compilation.
The design is fully hand-wired and open source, making it easy to build, modify, and adapt.
Features
- 10-key layout with 3 default layers:
- Base – standard numpad
- BT – Bluetooth controls + 6 blank keys for customization
- Shortcuts/Media – Ctrl+C / Ctrl+V / Ctrl+X, media (prev/play-pause/next), and arrow keys
- ZMK firmware with ZMK Studio support (no manual compile needed)
- Handwired build with 1N4148 diodes
- Open-source CAD + firmware
What’s available
- STEP files for easy edits and ready to print print profile
- Step-by-step wiring guide with photos
- User manual covering layers, combos, and Bluetooth usage
- GitHub repo → https://github.com/vostoklabs/Iskra-handwire-numpad
Enjoy printing!
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Documentation (2)
License
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.
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