

Mini cube
Early Curiosity - Cube
- Size
- 49.8 × 51.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 20
- Nets
- 31
- Pads
- 69
- Tracks, vias
- 59, 0
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 12 Apr 2023
- Updated
- 10 Aug 2026
Overview
Mini cube is an open-source printed circuit board by CUBE-SD-Project, from the CUBE-SD-Project/cube-neuro repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 49.8 × 51.8 mm with 20 parts on 31 nets, routed with 59 tracks and 0 vias.
It is built around the BC337. Its parts include 6 resistors, 6 switches, 4 connectors, 1 IC and 1 transistor.
Main components
1README
EDA/cube/README.md


Parts
20| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R1, R2, R3, R4, R5 |
| 5 | SW_Push | Connector_PinHeader_1.27mm:PinHeader_1x02_P1.27mm_Vertical | SW1, SW2, SW3, SW4, SW5 |
| 3 | Conn_01x02_Pin | Connector_PinHeader_1.27mm:PinHeader_1x02_P1.27mm_Vertical | J2, J3, J4 |
| 1 | 100R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R6 |
| 1 | BC337 | Package_TO_SOT_THT:TO-92_Inline_Wide | Q1 |
| 1 | Bat+ | Connector_Pin:Pin_D1.0mm_L10.0mm | J1 |
| 1 | Battery_Cell | Connector_PinHeader_1.27mm:PinHeader_1x02_P1.27mm_Vertical | Bat+ |
| 1 | SW_SPDT | Button_Switch_THT:SW_Slide_1P2T_CK_OS102011MS2Q | SW6 |
| 1 | Speaker | Connector_PinHeader_1.27mm:PinHeader_1x02_P1.27mm_Vertical | LS1 |
| 1 | WeMos_LoLin32_Lite | lolin32:WEMOS_LoLin32_Lite | U1 |
Questions
How big is the Mini cube PCB?
It measures 49.8 × 51.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Mini cube use?
20 parts, built around the BC337. 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 Mini cube KiCad files?
From the CUBE-SD-Project/cube-neuro repository on GitHub, at the commit this page was made from: the board is EDA/mini-cube/mini-cube/mini-cube.kicad_pcb and its schematic EDA/cube/cube.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Mini cube 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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