4 layers55 × 97 mm
Melodio SelfMate V2
zeeblaze/Melodio-SelfMate
Your Ultimate Portable Music Companion For Home Automation.
121 parts53
2 layers8.2 × 5 mm
Musicpi zero
A41K/Musicpi-zeroThis is just a generic README until the project comes to fruition.
- Size
- 8.2 × 5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 37
- Nets
- 53
- Pads
- 203
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 21 Jun 2026
- Updated
- 24 Jun 2026
Overview
Musicpi zero is an open-source printed circuit board by A41K, from the A41K/Musicpi-zero repository on GitHub. It is a 2-layer board of 8.2 × 5 mm with 37 parts on 53 nets.
It is built around the ESP32-C3-WROOM-02-H4, AP2112K-3.3 and PCM5102PW. Its parts include 11 resistors, 7 capacitors, 6 connectors, 4 ICs and 3 diodes. It belongs with the ESP32 and RISC-V boards of this library.
Main components
3
ESP32-C3-WROOM-02-H4
SMD,20x18mm-105dBm -40℃~+105℃ 2.4GHz 20.5dBm 345mA 3V~3.6V 82mA Bluetooth5.0 ESP32-C3 On-board PCB Antenna UART、SPI、I2C、I2S、USB SMD,20x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
AP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorised
PCM5102PW
TSSOP-20-25℃~+85℃ 1 3V~3.6V Digital filtering、Power-down mode I2S TSSOP-20 ADCs/DACs - Special Purpose ROHSTexas InstrumentsADCs/DACs - Special Purpose
README
README.mdThis is just a generic README until the project comes to fruition.
I'll put the main "idea" board here so you can see what I want to accomplish/What ideas im deliberating on I'm quite fairly new to hardware projects (not my first, but this is one of the biggest I made)
These are my main ideas currently
Parts
37| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 100u | Resistor_SMD:R_0603_1608Metric | R1, R8, R9, R10, R11 |
| 4 | MountingHole | MountingHole:MountingHole_2.1mm | H1, H2, H3, H4 |
| 3 | 1uF | Capacitor_SMD:C_0603_1608Metric | C3, C4, C5 |
| 2 | 10pF | Capacitor_SMD:C_0603_1608Metric | C6, C7 |
| 2 | 10uF | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric | R4, R5 |
| 2 | D | LED_SMD:LED_0603_1608Metric | D2, D3 |
| 1 | 1.1a | Fuse:Fuse_2920_7451Metric | F1 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric | R2 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 1ku | Resistor_SMD:R_0603_1608Metric | R7 |
| 1 | 200u | Resistor_SMD:R_0603_1608Metric | R6 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U4 |
| 1 | AudioJack3_Switch | Connector_Audio:Jack_3.5mm_CUI_SJ-3523-SMT_Horizontal | J4 |
| 1 | Barrel_Jack | Connector_BarrelJack:BarrelJack_Horizontal | J1 |
| 1 | Conn_01x02_Pin | Connector:JWT_A3963_1x02_P3.96mm_Vertical | J5 |
| 1 | Crystal | Crystal:Crystal_AT310_D3.0mm_L10.0mm_Horizontal | Y1 |
| 1 | ESP32-C3-WROOM-02 | RF_Module:ESP32-C3-WROOM-02 | U1 |
| 1 | LED | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | MAX98357A | Package_DFN_QFN:TQFN-16-1EP_3x3mm_P0.5mm_EP1.23x1.23mm | U3 |
| 1 | Micro_SD_Card | Connector_Card:microSD_HC_Hirose_DM3AT-SF-PEJM5 | J3 |
| 1 | PCM5102 | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U2 |
| 1 | USB_A | Connector_USB:USB_A_Receptacle_XKB_U231-091N-4BLRA00-S | J2 |
| 1 | USB_C_Plug_USB2.0 | Connector_USB:USB_C_Plug_JAE_DX07P024AJ1 | P1 |
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Questions
How big is the Musicpi zero PCB?
It measures 8.2 × 5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Musicpi zero use?
37 parts, built around the ESP32-C3-WROOM-02-H4, AP2112K-3.3 and PCM5102PW. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Musicpi zero KiCad files?
From the A41K/Musicpi-zero repository on GitHub, at the commit this page was made from: the board is MusicPiZero/MusicPiZero.kicad_pcb and its schematic MusicPiZero/MusicPiZero.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Musicpi zero design in my own project?
Its repository states no licence, so its author keeps all rights: ask A41K before reusing the design.