Mini cube
About the Mini cube PCB
Mini cube is an open source PCB design by CUBE-SD-Project, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 49.8 × 51.8 mm, with 19 components from 9 distinct parts.
Other key parts include the WeMos_LoLin32_Lite. By type, the board carries 6 switches, 6 resistors, 4 connectors, 1 IC, 1 transistor and 1 speaker.
From the project
Early Curiosity - Cube
This is the documentation for the third version of the cube. v1 is available here and v2 here. Pictures of the development are available online(v2 here).
The cube has a button on five of its faces, and a hatch on the bottom face. Under the hatch, there is: - A USB-C port for programming and battery charging. > [!IMPORTANT] > To charge the battery, the cube needs to be on. - A switch to turn the cube on and off. - A micro-SD reader.
Main components on the Mini cube
Mini cube bill of materials (BOM)
19 components, 9 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | WeMos_LoLin32_Lite | WEMOS_LoLin32_Lite | U1 |
| 1 | BC337 | TO-92_Inline_Wide | Q1 |
| 1 | Bat+ | Pin_D1.0mm_L10.0mm | J1 |
| 3 | Conn_01x02_Pin | PinHeader_1x02_P1.27mm_Vertical | J2, J3, J4 |
| 1 | Speaker | PinHeader_1x02_P1.27mm_Vertical | LS1 |
| 5 | SW_Push | PinHeader_1x02_P1.27mm_Vertical | SW1, SW2, SW3, SW4, SW5 |
| 1 | SW_SPDT | SW_Slide_1P2T_CK_OS102011MS2Q | SW6 |
| 5 | 1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R1, R2, R3, R4, R5 |
| 1 | 100R | R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R6 |
Mini cube design files
The KiCad project lives in the CUBE-SD-Project/cube-neuro repository on GitHub; these links point at the commit this page was built from.
Mini cube: common questions
How big is the Mini cube PCB?
The Mini cube measures 49.8 × 51.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Mini cube?
19 components, from 9 distinct parts. The full bill of materials is listed on this page.
Where can I download the Mini cube design files?
From the CUBE-SD-Project/cube-neuro repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Mini cube design in my own project?
Yes, under the terms of its GPL-3.0 license, which CUBE-SD-Project chose for the repository.
