HardLabs

AGB HiFi Audio Mod

cajunpanda·gameboy-hifi-audio·hardware/agb/agb-hifi-audio-pcb/agb-hifi-audio-pcb.kicad_pcb

AGB HiFi Audio Mod PCB layout, top view — open source RP2040/RP2350 board by cajunpanda

About the AGB HiFi Audio Mod PCB

AGB HiFi Audio Mod is an open source RP2040/RP2350 PCB design by cajunpanda, published on GitHub under the MIT license. It is a 4-layer board measuring 25.4 × 35.1 mm, with 60 components from 26 distinct parts.

Its main chip is the ESP32-PICO-MINI-02-N8R2, from the RP2040/RP2350 family. Other key parts include the ES8388, TPS61021ADSGR, PAM8302AASCR and LP5907MFX-3.0/NOPB. By type, the board carries 34 capacitors, 18 resistors, 5 ICs and 2 inductors.

It belongs with the retro computing, audio and iot & wireless designs in this gallery.

From the project

A HiFi audio mod for various Game Boy models

A Bluetooth audio upgrade for the Game Boy Advance. It removes the console's stock audio amp and replaces the whole audio back end with an ESP32 and an ES8388 codec. The mod streams game audio to Bluetooth headphones and speakers, and it also drives the GBA's built-in speaker and wired headphone jack itself, with onboard EQ, volume, and sound effects.

- Bluetooth (A2DP) output to any standard headphones or speaker. - Wired headphones and the internal speaker, driven by the onboard codec. - EQ, volume, and sound-effect cues, tunable from a phone or laptop over Bluetooth (no app install, it…

AGB HiFi Audio Mod, from the project README
From the project README

Main components on the AGB HiFi Audio Mod

ESP32-PICO-MINI-02-N8R2ES8388TPS61021ADSGRPAM8302AASCRLP5907MFX-3.0/NOPB

AGB HiFi Audio Mod bill of materials (BOM)

60 components, 26 distinct parts.

QtyPartRefs
1
ESP32-PICO-MINI-02-N8R2
Espressif Systems
U1
1
ES8388
Everest Semiconductor
U2
1
TPS61021ADSGR
Texas Instruments
U3
1
PAM8302AASCR
Diodes Incorporated
U4
1
LP5907MFX-3.0/NOPB
LP5907MFX-3.0
Texas Instruments
U5
1
AFC07-S12ECA-00
JUSHUO
FPC1
1
BLM15AG601SN1D
600R@100MHz
Murata Electronics
FB1
1
WIP252012P-R47ML
0.47uH
INPAQ
L1
6
CL21A226MAQNNNE
22u
Samsung Electro-Mechanics
C1, C2, C32, C33, C34, C35
7
CL05A106MQ5NUNC
10u
Samsung Electro-Mechanics
C3, C6, C8, C10, C11, C20, C24
7
CL05B104KO5NNNC
100n
Samsung Electro-Mechanics
C4, C7, C9, C21, C25, C26, C30
6
CL05A105KA5NQNC
1u
Samsung Electro-Mechanics
C5, C15, C16, C19, C27, C31
1
CL05A475MP5NRNC
4.7u
Samsung Electro-Mechanics
C12
2
GRM1555C1E103JE01D
10n C0G
Murata Electronics
C13, C14
2
T520B227M006ATE045
220u/6.3V
KEMET
C17, C18
2
CL05B103KB5NNNC
10n
Samsung Electro-Mechanics
C22, C23
1
CL05C100JB5NNNC
10pF
Samsung Electro-Mechanics
C29
1
0402WGF3163TCE
316k
UNI-ROYAL
R1
4
0402WGF1003TCE
100k
UNI-ROYAL
R2, R9, R20, R21
2
0402WGF2201TCE
2.2k
UNI-ROYAL
R3, R4
Show 6 more
QtyPartRefs
2
0402WGF1502TCE
15k
UNI-ROYAL
R7, R8
3
0402WGF1002TCE
10k
UNI-ROYAL
R10, R13, R14
2
0402WGF1001TCE
1k
UNI-ROYAL
R11, R12
2
0402WGF4701TCE
4.7k
UNI-ROYAL
R15, R16
1
0402WGF100JTCE
10R
UNI-ROYAL
R17
1
0402WGF330JTCE
33R
UNI-ROYAL
R19

AGB HiFi Audio Mod design files

The KiCad project lives in the cajunpanda/gameboy-hifi-audio repository on GitHub; these links point at the commit this page was built from.

AGB HiFi Audio Mod: common questions

What microcontroller does the AGB HiFi Audio Mod use?

The AGB HiFi Audio Mod is built around the ESP32-PICO-MINI-02-N8R2, from the RP2040/RP2350 family.

How big is the AGB HiFi Audio Mod PCB?

The AGB HiFi Audio Mod measures 25.4 × 35.1 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the AGB HiFi Audio Mod?

60 components, from 26 distinct parts. The full bill of materials is listed on this page.

Where can I download the AGB HiFi Audio Mod design files?

From the cajunpanda/gameboy-hifi-audio repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the AGB HiFi Audio Mod design in my own project?

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

Can I test firmware for the AGB HiFi Audio Mod without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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