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MP3-Gotchi v2

Artisfera·MP3-Gotchi-v2·hardware/MP3-Gotchi-v2_kicad/MP3-Gotchi-v2_kicad.kicad_sch

MP3-Gotchi v2

About the MP3-Gotchi v2 PCB

MP3-Gotchi v2 is an open source ESP32 PCB design by Artisfera, published on GitHub under the AGPL-3.0 license. It is a board, with 141 components from 57 distinct parts.

Its main chip is the ESP32-S3-WROOM, from the ESP32 family. Other key parts include the SC189ZSKTRT, TP4056, DW01A, LM4808M / TS482IDT and TLV9062IDR. By type, the board carries 51 resistors, 47 capacitors, 10 ICs, 9 diodes, 8 connectors and 5 transistors.

It belongs with the audio, displays & leds and power & battery designs in this gallery.

From the project

A pocket-sized offline MP3 player with a Tamagotchi-style monkey companion, built from scratch around a custom ESP32-S3 PCB as a one-of-a-kind anniversary gift.

A pocket-sized offline MP3 player with a Tamagotchi-style monkey companion, built from scratch around a custom ESP32-S3 PCB.

Have you ever lost signal during a trip and realised that streaming had quietly become your entire music library?

You can store MP3 files on a phone, of course, but carrying a dedicated music player still feels different.

My girlfriend runs into this problem often, so for our anniversary I decided to build her a one-of-a-kind Tamagotchi-style MP3 player. While listening to music, she will also be able to feed and take care of a little monkey companion.

Main components on the MP3-Gotchi v2

SC189ZSKTRTESP32-S3-WROOMTP4056DW01ALM4808M / TS482IDTTLV9062IDRPCM5102AMPU-6050CH343PPAM8302AAD

MP3-Gotchi v2 bill of materials (BOM)

141 components, 57 distinct parts.

QtyPartRefs
1
SC189ZSKTRT
IC1
1
ESP32-S3-WROOM
U1
1
TP4056
U2
1
DW01A
U3
1
LM4808M / TS482IDT
U4
1
TLV9062IDR
U5
1
PCM5102A
U6
1
MPU-6050
U7
1
CH343P
U8
1
PAM8302AAD
U9
2
Vibration-Motor
M1, M2
1
FS8205A
Q1
2
SS8050
Q2, Q3
2
AO3400A
Q4, Q5
1
Li-Ion
J1
1
FC68129
J2
1
112I-TA01
J3
2
UART_PROG
J4, J6
1
OLED-SSD1331-SPI
J5
1
Internal Speaker
J7
Show 37 more
QtyPartRefs
1
USB_C_Plug_USB2.0
P1
2
Jumper_2_Small_Bridged
JP1, JP4
2
Jumper_2_Small_Open
JP2, JP3
1
RST
SW1
1
RotaryEncoder-Switch-15mm
SW2
1
A
SW3
1
B
SW4
1
LED
D1
1
ESD5Z3.3T1G
D2
4
SS12
D3, D7, D8, D9
3
LESD5D5.0CT1G
D4, D5, D6
1
2.2uH
L1
11
0.1uF
C1, C3, C11, C16, C21, C22, C23, C24 +3
12
10uF
C2, C4, C5, C12, C25, C26, C30, C34 +4
4
2.2uF
C6, C7, C17, C18
2
680uF
C8, C9
4
1uF
C10, C32, C33, C48
3
10nF
C14, C41, C47
5
2.2nF
C19, C20, C37, C46, C49
3
100nF
C27, C28, C29
1
4.7uF
C31
1
47pF
C39
1
4.7nF
C44
3
5k
R1, R32, R33
3
100R
R2, R5, R6
3
1k
R3, R42, R48
20
10K
R4, R8, R9, R10, R11, R12, R22, R25 +12
2
22k
R7, R13
5
100k
R14, R17, R18, R19, R24
2
3.9k
R15, R16
2
0R
R20, R21
1
2.2k
R23
2
4.7k
R26, R27
2
470R
R29, R30
1
499R
R37
4
20k
R39, R40, R45, R49
1
200k
R46

MP3-Gotchi v2 design files

The KiCad project lives in the Artisfera/MP3-Gotchi-v2 repository on GitHub; these links point at the commit this page was built from.

MP3-Gotchi v2: common questions

What microcontroller does the MP3-Gotchi v2 use?

The MP3-Gotchi v2 is built around the ESP32-S3-WROOM, from the ESP32 family.

How many components are on the MP3-Gotchi v2?

141 components, from 57 distinct parts. The full bill of materials is listed on this page.

Where can I download the MP3-Gotchi v2 design files?

From the Artisfera/MP3-Gotchi-v2 repository on GitHub, which has the schematic; the links under Design files point to each one.

Can I use the MP3-Gotchi v2 design in my own project?

Yes, under the terms of its AGPL-3.0 license, which Artisfera chose for the repository.

Can I test firmware for the MP3-Gotchi v2 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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