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4-in-1-LED-Matrix-Board

shubham7547·4-in-1-LED-Matrix-Board·Kicad Files/4-in-1_LED_Matrix_Board/4-in-1_LED_Matrix_Board.kicad_pcb

4-in-1-LED-Matrix-Board layout, top view — open source AVR/Arduino board by shubham7547

About the 4-in-1-LED-Matrix-Board

4-in-1-LED-Matrix-Board is an open source AVR/Arduino PCB design by shubham7547, published on GitHub. It is a 2-layer board measuring 111.8 × 116.8 mm, with 46 components from 15 distinct parts.

Its main chip is the ARDUINO_NANO, from the AVR/Arduino family. Other key parts include the ULN2003. By type, the board carries 26 resistors, 7 switches, 5 transistors, 2 diodes, 1 IC and 1 connector.

It belongs with the displays & leds and sensors designs in this gallery.

From the project

A compact and multifunctional 5×7 LED dot matrix system built around an Arduino Nano. It integrates four interactive modules into a single educational platform:

A compact and multifunctional 5×7 LED dot matrix system built around an Arduino Nano. It integrates four interactive modules into a single educational platform:

- 🔤 Morse Tutor — Learn Morse code interactively - ⏳ LED Hourglass — Tilt-controlled sand animation - 👁️ Persistence of Vision (POV) Demo — Visual persistence effect - 🌡️ Temperature Display — Real-time thermistor reading

4-in-1-LED-Matrix-Board, from the project README
From the project README

Main components on the 4-in-1-LED-Matrix-Board

ULN2003

4-in-1-LED-Matrix-Board bill of materials (BOM)

46 components, 15 distinct parts.

QtyPartRefs
1
ULN2003
U1
5
BC327
Q6, Q7, Q8, Q9, Q10
1
Connector for 5V supply
J1
1
Buzzer
BZ1
1
R_Potentiometer
RV1
2
Tilt Switch
S1, S2
5
SW_PUSH
SW1, SW2, SW3, SW4, SW5
1
ARDUINO_NANO
TB1
1
Thermistor_NTC
TH1
1
5x7 LED MATRIX
D1
1
POWER ON LED
D2
7
1k
R1, R14, R15, R16, R17, R18, R19
5
1k
R2, R3, R4, R5, R6
7
220
R7, R8, R9, R10, R11, R12, R13
7
47
R20, R21, R22, R23, R24, R25, R26

4-in-1-LED-Matrix-Board design files

The KiCad project lives in the shubham7547/4-in-1-LED-Matrix-Board repository on GitHub; these links point at the commit this page was built from.

4-in-1-LED-Matrix-Board: common questions

What microcontroller does the 4-in-1-LED-Matrix-Board use?

The 4-in-1-LED-Matrix-Board is built around the ARDUINO_NANO, from the AVR/Arduino family.

How big is the 4-in-1-LED-Matrix-Board?

The 4-in-1-LED-Matrix-Board measures 111.8 × 116.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 4-in-1-LED-Matrix-Board?

46 components, from 15 distinct parts. The full bill of materials is listed on this page.

Where can I download the 4-in-1-LED-Matrix-Board design files?

From the shubham7547/4-in-1-LED-Matrix-Board repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the 4-in-1-LED-Matrix-Board design in my own project?

The repository has no license, so all rights stay with shubham7547. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the 4-in-1-LED-Matrix-Board without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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