Jianovka
About the Jianovka PCB
Jianovka is an open source NXP PCB design by joric, published on GitHub. It is a 2-layer board measuring 143 × 101.8 mm, with 53 components from 4 distinct parts.
Its main chip is the Teensy2.0_(C), from the NXP family. Other key parts include the MH3SS2. By type, the board carries 42 ICs and 6 resistors.
It belongs with the keyboards designs in this gallery.
From the project
Zbrojovka hardware-based keyboard with Jian-based layout
Jianovka is a chorded keyboard that looks similar to Jian or Corne keyboard, but uses chords instead of layers. Columnar stagger and thumb cluster are copied from Jian keyboard, but far-far-away pinky key removed. So Jianovka looks more like Jian, but has 42 keys like Corne.
This keyboard is designed to be made with Hall effect switches and keys from vintage Zbrojovka 262.3 keyboard, Teensy 2.0 microcontroller and QMK firmware.
Main components on the Jianovka
Jianovka bill of materials (BOM)
53 components, 4 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 42 | MH3SS2 | MH3SS2 | U1, U2, U3, U4, U5, U6, U7, U8 +34 |
| 4 | Conn_02x06_Top_Bottom | IDC-Header_2x06_P2.54mm_Vertical | JL1, JL2, JR1, JR2 |
| 1 | Teensy2.0_(C) | Teensy2.0 | Teensy_2.0 |
| 6 | R | R_1206_3216Metric | R1, R2, R3, R4, R5, R6 |
Jianovka design files
The KiCad project lives in the joric/jianovka repository on GitHub; these links point at the commit this page was built from.
Jianovka: common questions
What microcontroller does the Jianovka use?
The Jianovka is built around the Teensy2.0_(C), from the NXP family.
How big is the Jianovka PCB?
The Jianovka measures 143 × 101.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Jianovka?
53 components, from 4 distinct parts. The full bill of materials is listed on this page.
Where can I download the Jianovka design files?
From the joric/jianovka repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Jianovka design in my own project?
The repository has no license, so all rights stay with joric. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Jianovka without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug NXP firmware against it before you order a PCB.
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