2 layers71 × 73 mm
Alarm
bbokser/persuasive_waker
An open source hardware alarm clock that can't be snoozed or turned off.
71 parts3MIT
2 layers85.5 × 53.5 mm
LedMatrix
lsburlino/IEEE-LED-BoardPCB Board for IEEE Meeting
- Size
- 85.5 × 53.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 17
- Nets
- 48
- Pads
- 115
- Tracks, vias
- 256, 50
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 16 Sep 2026
- Updated
- 17 Sep 2026
Overview
LedMatrix is an open-source printed circuit board by lsburlino, from the lsburlino/IEEE-LED-Board repository on GitHub. It is a 2-layer board of 85.5 × 53.5 mm with 17 parts on 48 nets, routed with 256 tracks and 50 vias.
It is built around the MAX7219M and TDCR1060M. Its parts include 3 ICs, 3 switches, 2 capacitors, 2 resistors and 1 diode. It belongs with the lEDs and displays boards of this library.
Main components
2
MAX7219M
SOP-24-300mil10MHz 150uA 3-Wire Serial Interface 30mA 320mA 4V~5.5V 8 Segment x 8 Digit Built-in display RAM、PWM dimming、BCD input latch function、Power-up display blanking、Lamp test function、Cascadable function SOP-24-300mil Digital Tube Drivers ROHSHGSEMIDigital Tube Drivers
TDCR1060M
DIP-16DIP-16 LED Segment Displays ROHSVishay IntertechnologyLED Segment Displays
README
README.mdIEEE LED Matrix Board
A KiCad hardware design for an 7-Segment LED matrix display board, built for a University of Portland IEEE student workshop. The board uses an Arduino Nano R4 MCU and a MAX7219 LED driver to control multiple LED display modules.
Circuit Overview
| Component | Description |
|---|---|
| Arduino Nano R4 | Main microcontroller |
| MAX7219 | 8-digit serial LED display driver (Maxim Integrated) |
| TDCR1060M (x2) | Vishay LED display units |
| VS-1213-67-160GF (x3) | 12mm tactile input switches |
The design supports multiple voltage rails (1V, 3.3V, 5V) and uses passive components for current limiting and decoupling.
Project Status
- Schematic design
- PCB layout
- Firmware
- Fabrication
Tools
- KiCad 9.0 — Schematic and PCB design
Getting Started
- Install KiCad 9.0 or later
- Clone this repository
- Open
LedMatrix.kicad_proin KiCad
License
This project is developed by Luca Sburlino. Contact the maintainers for usage terms.
Parts
17| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | H1, H2, H3 |
| 2 | TDCR1060M | LedMatrixFootprintLib:TDCG1060M_VIS | U2, U3 |
| 1 | 10-22k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R2 |
| 1 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1 |
| 1 | 10uF | LedMatrixFootprintLib:CAP_YX_5X11_RUB | C2 |
| 1 | 22k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1 |
| 1 | Arduino_R4 | Module:Arduino_Nano | A1 |
| 1 | Buzzer | LedMatrixFootprintLib:Buzzer | LS1 |
| 1 | External Pwr | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | LED | Diode_SMD:D_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1 |
| 1 | MAX7219 | LedMatrixFootprintLib:21-0043D_24_MXM | U1 |
| 1 | Mode | LedMatrixFootprintLib:SW_VS-1213-67-160GF | S1 |
| 1 | Reset | LedMatrixFootprintLib:SW_VS-1213-67-160GF | S2 |
| 1 | Start/Stop | LedMatrixFootprintLib:SW_VS-1213-67-160GF | S3 |
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Questions
How big is the LedMatrix PCB?
It measures 85.5 × 53.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the LedMatrix use?
17 parts, built around the MAX7219M and TDCR1060M. 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 LedMatrix KiCad files?
From the lsburlino/IEEE-LED-Board repository on GitHub, at the commit this page was made from: the board is LedMatrix.kicad_pcb and its schematic LedMatrix.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the LedMatrix design in my own project?
Its repository states no licence, so its author keeps all rights: ask lsburlino before reusing the design.