

DotMatrix
My open source PCBs
- Size
- 82 × 74.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 22
- Nets
- 40
- Pads
- 82
- Tracks, vias
- 175, 22
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 21 Nov 2024
- Updated
- 6 Feb 2026
Overview
DotMatrix is an open-source printed circuit board by GHOST-mHBr, from the GHOST-mHBr/PCBs repository on GitHub. It is a 2-layer board of 82 × 74.9 mm with 22 parts on 40 nets, routed with 175 tracks and 22 vias.
Its parts include 16 resistors, 3 connectors and 1 IC.
README
7seg/README.mdPCB for 4-digit multiplexed CC 7-segments
Parts
22| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 120 | Resistor_SMD:R_0603_1608Metric | R9, R10, R11, R12, R13, R14, R15, R16 |
| 8 | 82 | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4, R5, R6, R7, R8 |
| 1 | Anodes | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J1 |
| 1 | Green | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J3 |
| 1 | Red | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J2 |
| 1 | ~ | DotMatrixDisp:8x8 5mm bicolor led dot matrix | U1 |
The 20 most common of 22 parts.
Questions
How big is the DotMatrix PCB?
It measures 82 × 74.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the DotMatrix use?
22 parts. 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 DotMatrix KiCad files?
From the GHOST-mHBr/PCBs repository on GitHub, at the commit this page was made from: the board is Dot Matrix/DotMatrix/DotMatrix.kicad_pcb and its schematic 7seg/7seg.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the DotMatrix design in my own project?
Its repository states no licence, so its author keeps all rights: ask GHOST-mHBr before reusing the design.
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