2 layers228.6 × 100 mm
Mongus48
ChrisChrisLoLo/beyblock20
The magnetic, modular, 20-key macropad that can join together to form an ortholinear board
124 parts335GPL-3.0
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Led mat v1
mirmisbahali/electronics_projectsA compact LED matrix prototyping board driven by an Arduino Nano using charlieplexing to control a large number of LEDs with minimal I/O pins.
- Size
- 85 × 43.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 124
- Nets
- 39
- Pads
- 302
- Tracks, vias
- 1,096, 82
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 16 Jul 2025
- Updated
- 7 Nov 2026
Overview
Led mat v1 is an open-source printed circuit board by mirmisbahali, from the mirmisbahali/electronics_projects repository on GitHub. It is a 2-layer board of 85 × 43.1 mm with 124 parts on 39 nets, routed with 1,096 tracks and 82 vias.
Its parts include 110 diodes, 11 resistors and 2 connectors. It belongs with the AVR (ATmega, ATtiny) boards of this library.
README
README.mdLED Matrix PCB
A compact LED matrix prototyping board driven by an Arduino Nano using charlieplexing to control a large number of LEDs with minimal I/O pins.
Status: 🚧 In Progress
- Schematic complete
- PCB layout complete
- Fabrication files generated (JLCPCB) — parts ordered
- Testing
Preview
PCB View
v1 design complete. Parts ordered from JLCPCB.
Schematic
Hardware
| Component | Details |
|---|---|
| MCU | Arduino Nano |
| LED driver | Charlieplexing |
| Version | v1 |
Parts
124| Qty | Value | Footprint | References |
|---|---|---|---|
| 110 | LED | LED_SMD:LED_0603_1608Metric | D1, D10, D11, D12, D13, D100, D101, D102, D103, D104, D105, D106, D107, D108, D109, D110 +94 |
| 11 | 330 | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11 |
| 1 | Arduino_Nano_Every | Module:Arduino_Nano | A1 |
| 1 | Left_header | Connector_PinSocket_2.54mm:PinSocket_1x15_P2.54mm_Vertical | J1 |
| 1 | Right_header | Connector_PinSocket_2.54mm:PinSocket_1x15_P2.54mm_Vertical | J2 |
Questions
How big is the Led mat v1 PCB?
It measures 85 × 43.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Led mat v1 use?
124 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 Led mat v1 KiCad files?
From the mirmisbahali/electronics_projects repository on GitHub, at the commit this page was made from: the board is led_matrix/v1/led_mat_v1/led_mat_v1.kicad_pcb and its schematic led_matrix/v1/led_mat_v1/led_mat_v1.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Led mat v1 design in my own project?
Its repository states no licence, so its author keeps all rights: ask mirmisbahali before reusing the design.
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