Pcb
zzeneg·molekula·keyboards/Molekula2/pcb.kicad_pcb
About the Pcb
Pcb is an open source PCB design by zzeneg, published on GitHub under the MIT license. It is a 2-layer board measuring 276 × 87.2 mm, with 93 components from 12 distinct parts.
By type, the board carries 38 switches, 36 diodes and 12 connectors.
It belongs with the keyboards designs in this gallery.
From the project
Framework for building ergo keyboards
Reference design using molekula framework PCBs.
- minY (19x16mm) spacing - unibody that can be disassembled into two parts for traveling - 36 keys - wireless - nice!view support - rotary encoder
- molekula shield with default keymap and ZMK Studio support - my custom keymap, can be used as reference if needed
- MCU - nice!nano (recommended to support original creator) or its chinese clone - 36 MX/KS-33/Choc switches - 36 MX/KS-33/Choc hotswap sockets - 36 SMD SOD-123 1N4148 diodes - Battery up to 602040 size - this is what I'm using, should be enough but you may try to go bigger (check…

Pcb bill of materials (BOM)
93 components, 12 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | N!N | MCU_nice-nano | J1 |
| 4 | C479750 | Connector_FFC-12pin-0.5mm-horizontal | J2, J3, J4, J5 |
| 1 | Display_nice-view | Display_nice-view | J6 |
| 2 | Conn_01x02_Socket | Connector_JST-1x02-2.00mm | J7, J12 |
| 2 | C262499 | Connector_FFC-12pin-0.5mm-vertical | J8, J9 |
| 2 | Conn_01x12_Socket | Connector_Magnetic-12pin | J10, J11 |
| 7 | MountingHole | Hole_M2-solder-nut-2.5 | H1, H2, H3, H4, H5, H6, H7 |
| 30 | Switch | Switch_MXKSChoc-miny-hotswap-chocv2-3d | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +22 |
| 6 | Switch | Switch_KSChoc-miny-hotswap-chocv2-3d | SW16, SW17, SW18, SW34, SW35, SW36 |
| 1 | SW_Push | Button_SW_SPST_SKQG_WithoutStem | SW37 |
| 1 | RotaryEncoder_Switch | RotaryEncoder_EC11 | SW38 |
| 36 | C81598 | Diode_1N4148-SOD123 | D1, D2, D3, D4, D5, D6, D7, D8 +28 |
Pcb design files
The KiCad project lives in the zzeneg/molekula repository on GitHub; these links point at the commit this page was built from.
Pcb: common questions
How big is the Pcb?
The Pcb measures 276 × 87.2 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Pcb?
93 components, from 12 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Pcb design files?
From the zzeneg/molekula repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Pcb design in my own project?
Yes, under the terms of its MIT license, which zzeneg chose for the repository.