HardLabs

Arduino music box

hschwar2·arduino-music-box·hardware/arduino-music-box.kicad_pcb

Arduino music box PCB layout, top view — open source AVR/Arduino board by hschwar2

About the Arduino music box PCB

Arduino music box is an open source AVR/Arduino PCB design by hschwar2, published on GitHub. It is a 2-layer board measuring 103.5 × 87 mm, with 24 components from 15 distinct parts.

Its main chip is the Arduino_UNO_R3, from the AVR/Arduino family. By type, the board carries 9 diodes, 8 resistors, 4 switches, 1 module and 1 buzzer.

It belongs with the audio and dev boards & breakouts designs in this gallery.

From the project

Arduino interactive music box featuring a 4-button diode-OR hardware interrupt circuit, tone-to-color PWM mapping, and real-time analog volume/brightness control.

A complete embedded hardware and firmware system built around the ATmega328P (Arduino Uno R3) platform. This project features a custom-designed 2-layer PCB shield, real-time song switching via dynamic loop interrupts, tone-synced 24-bit RGB lighting, diode-OR hardware logic, and dynamic potentiometer audio scaling

Designed, routed, and documented using KiCad 9.0.

Arduino music box, from the project README
From the project README

Main components on the Arduino music box

Arduino_UNO_R3

Arduino music box bill of materials (BOM)

24 components, 15 distinct parts.

QtyPartRefs
1
Arduino_UNO_R3
A1
1
Buzzer
BZ1
1
R_Potentiometer_US
RV1
1
Green Push Button
SW1
1
Red Push Button
SW2
1
Yellow Push Button
SW3
1
Blue Push Button
SW4
1
Blue LED
D1
4
D
D2, D4, D5, D6
1
LED_RAGB
D3
1
Yellow LED
D7
1
Red LED
D8
1
Green LED
D9
4
10k
R1, R2, R3, R4
4
220
R5, R6, R7, R8

Arduino music box design files

The KiCad project lives in the hschwar2/arduino-music-box repository on GitHub; these links point at the commit this page was built from.

Arduino music box: common questions

What microcontroller does the Arduino music box use?

The Arduino music box is built around the Arduino_UNO_R3, from the AVR/Arduino family.

How big is the Arduino music box PCB?

The Arduino music box measures 103.5 × 87 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Arduino music box?

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

Where can I download the Arduino music box design files?

From the hschwar2/arduino-music-box repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Arduino music box design in my own project?

The repository has no license, so all rights stay with hschwar2. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Arduino music box 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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