HardLabs

Musicboy

psobot·musicboy·hardware/cart.kicad_pcb

Musicboy PCB layout, top view — open source STM32 board by psobot
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About the Musicboy PCB

Musicboy is an open source STM32 PCB design by psobot, published on GitHub under the MIT license. It is a 2-layer board measuring 51.4 × 61 mm, with 15 components from 9 distinct parts.

Its main chip is the STM32F446ZET6, from the STM32 family. Other key parts include the MIC5219YM5 and W25Q128JVSIQ. By type, the board carries 10 capacitors, 3 ICs and 1 resistor.

It belongs with the retro computing and audio designs in this gallery.

From the project

A high-quality audio playback cartridge for Nintendo® Game Boy® and Game Boy Color®.

(Note: this project is not approved, condoned, or endorsed by Nintendo®.)

Music Boy is a custom hardware cartridge and accompanying software to play back high quality audio on the Nintendo® Game Boy® and Game Boy Color® handheld game consoles1. Music Boy fits in a standard Game Pak® cartridge casing and requires no additional modifications - it plays like a standard game.

Musicboy, from the project README
From the project README

Main components on the Musicboy

STM32F446ZET6MIC5219YM5W25Q128JVSIQ

Musicboy bill of materials (BOM)

15 components, 9 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
STM32F446ZET6
U1
1
MIC5219YM5
MIC5219
U2
1
W25Q128JVSIQ
U3
1
TAJC476K006RNJ
47uF
CP1
1
CC0603KRX7R8BB105
1uF
C1
5
CC0603KRX7R9BB104
100nF
C2, C4, C5, C6, C7
1
CC0402KRX7R9BB471
470pF
C3
3
CC0603KRX7R6BB225
2.2uF
C9, C10, C11
1
RC0603FR-0710KL
10k
R1

Musicboy design files

The KiCad project lives in the psobot/musicboy repository on GitHub; these links point at the commit this page was built from.

Musicboy: common questions

What microcontroller does the Musicboy use?

The Musicboy is built around the STM32F446ZET6, from the STM32 family.

How big is the Musicboy PCB?

The Musicboy measures 51.4 × 61 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Musicboy?

15 components, from 9 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Musicboy design files?

From the psobot/musicboy repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Musicboy design in my own project?

Yes, under the terms of its MIT license, which psobot chose for the repository.

Can I test firmware for the Musicboy without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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