4 layers55 × 95 mm
MP3-Player
rishub03/MP3-Player
A bare-metal embedded systems project — custom PCB MP3 player built from scratch using STM32F411CEU6, KiCad 9.0, and Embedded C.
57 parts
4 layers82.4 × 58.1 mm
- Size
- 82.4 × 58.1 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 92
- Nets
- 91
- Pads
- 396
- Tracks, vias
- 684, 153
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 13 Aug 2026
- Updated
- 25 Oct 2026
Overview
Mp3 is an open-source printed circuit board by Yashsharda2, from the Yashsharda2/MP3_PCB repository on GitHub. It is a 4-layer board of 82.4 × 58.1 mm with 92 parts on 91 nets, routed with 684 tracks and 153 vias.
It is built around the TPA6132A2RTE, TPS63001DRC and DW01A, with the PCM5102APW, TP4056-42-ESOP8 and TPS2113ADRBR among its other parts. Its parts include 35 capacitors, 22 resistors, 11 diodes, 7 ICs and 5 connectors. It belongs with the ESP32 boards of this library.
Main components
8
TPA6132A2RTE
WQFN-16-EP(3x3)-40℃~+85℃ 0.02% 100dB 100dB 2-Channel 2.1mA 2.3V~5.5V 25mWx2@16Ω Automatic mute/no-noise switch、Enable/shutdown function、Digitally programmable gain WQFN-16-EP(3x3) Audio Amplifiers ROHSTexas InstrumentsAudio Amplifiers
TPS63001DRC
VSON-10-EP(3x3)-40℃~+85℃@(TA) 1 1.5MHz 1.8V~5.5V 3.3V 50uA Buck-Boost Buck-Boost Built-in Fixed Yes VSON-10-EP(3x3) DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
DW01A
SOT-23-6L-40℃~+85℃ 1 2.5V 300mV~10V 3uA 4.3V Protection IC Support SOT-23-6L Battery Management ROHSPUOLOPBattery Management
PCM5102APW
TSSOP-20-25℃~+85℃ 1.8V~3.3V 2 32 384kHz 500uA 50MHz Audio Decoder Digital filtering、Power-down mode I2S TSSOP-20 ADCs/DACs - Special Purpose ROHSTexas InstrumentsADCs/DACs - Special Purpose
TP4056-42-ESOP8
ESOP-8-40℃~+85℃ 1 1A 2uA 4.2V 4V~8V Charging IC Lithium Battery Support ESOP-8 Battery Management ROHSTOPPOWERBattery Management
TPS2113ADRBR
SON-8(3x3)-40℃~+125℃ 2.8V~5.5V 2A 84mΩ Soft-start、Under-voltage lockout、Integrated charge pump、Overcurrent Protection、Over temperature protection、Reverse current blocking SON-8(3x3) Power Distribution Switches ROHSTexas InstrumentsAC-DC Controllers And Regulators
WS2812B
5mm X 5mm Surface Mount RGB LED with Intelligent ControlWorldsemiUncategorisedDMTH6016LFDFWQ-7R
UDFN2020-6-55℃~+175℃ 1 N-channel 13.8mΩ@10V、20.3mΩ@4.5V 15.3nC@10V 2.3W 242pF 25.4pF 3V 60V 9.4A 925pF UDFN2020-6 MOSFETs ROHSDiodes IncorporatedMOSFETs
Parts
92| Qty | Value | Footprint | References |
|---|---|---|---|
| 15 | 100nF | Capacitor_SMD:C_0603_1608Metric | C1, C17, C18, C19, C20, C26, C28, C33, C34, C35, C36, C37, C38, C39, C40 |
| 9 | WS2812B | LED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | D1, D2, D3, D4, D5, D6, D7, D8, D9 |
| 8 | 1u | Capacitor_SMD:C_0603_1608Metric | C23, C24, C25, C27, C29, C30, C31, C32 |
| 7 | 10k | Resistor_SMD:R_0603_1608Metric | R1, R10, R11, R12, R13, R14, R17 |
| 6 | 1k | Resistor_SMD:R_0603_1608Metric | R5, R6, R8, R9, R18, R19 |
| 4 | 10u | Capacitor_SMD:C_0603_1608Metric | C3, C5, C6, C8 |
| 3 | 100 | Resistor_SMD:R_0603_1608Metric | R4, R15, R16 |
| 2 | 100n | Capacitor_SMD:C_0603_1608Metric | C2, C7 |
| 2 | 10µF | Capacitor_SMD:C_0603_1608Metric | C14, C15 |
| 2 | 2.2µF | Capacitor_SMD:C_0603_1608Metric | C21, C22 |
| 2 | 22 | Resistor_SMD:R_0603_1608Metric | R7, R23 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric | R21, R22 |
| 2 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2, J3 |
| 2 | LED | LED_SMD:LED_0603_1608Metric | D10, D11 |
| 2 | SW_Push | Button_Switch_THT:SW_Tactile_SPST_Angled_PTS645Vx83-2LFS | SW_NEXT1, SW_PREVIOUS1 |
| 2 | TestPoint | TestPoint:TestPoint_Pad_1.0x1.0mm | TP1, TP2 |
| 1 | 0 | Resistor_SMD:R_0603_1608Metric | R20 |
| 1 | 0.1u | Capacitor_SMD:C_0603_1608Metric | C4 |
| 1 | 2.2uH | Inductor_SMD:L_1206_3216Metric | L1 |
| 1 | 22µF | Capacitor_SMD:C_0603_1608Metric | C16 |
| 1 | 402 | Resistor_SMD:R_0603_1608Metric | R2 |
| 1 | AudioJack3 | Connector_Audio:Jack_3.5mm_CUI_SJ-3523-SMT_Horizontal | J8 |
| 1 | DMTH6016LFDFWQ-7R | dual n-c mosfet:U-DFN2020-6_TYPE_F_DIO | MOSFET1 |
| 1 | DW01A | Package_TO_SOT_SMD:SOT-23-6 | U2 |
| 1 | ESP32-S3-WROOM-2 | RF_Module:ESP32-S3-WROOM-2 | U7 |
| 1 | GND | TestPoint:TestPoint_Pad_D1.0mm | TP7 |
| 1 | LOGO | obsession:ob1 | G*** |
| 1 | Micro_SD_Card | Connector_Card:microSD_HC_Hirose_DM3AT-SF-PEJM5 | J7 |
| 1 | PCM5102A | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U5 |
| 1 | RotaryEncoder_Switch | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW4 |
| 1 | SW_Wuerth_450301014042 | Button_Switch_THT:SW_Slide_SPDT_Angled_CK_OS102011MA1Q | SW3 |
| 1 | TP4056-42-ESOP8 | Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm_ThermalVias | U1 |
| 1 | TPA6132A2RTE | ic:QFN50P300X300X80-16N | U6 |
| 1 | TPS2113ADRBR | buck:SON65P300X300X100-9N | U8 |
| 1 | TPS63001 | Package_SON:Texas_DRC0010J_ThermalVias | U4 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_JAE_DX07S016JA1R1500 | J1 |
| 1 | boot | Button_Switch_SMD:SW_SPST_FSMSM | SW1 |
| 1 | reset | Button_Switch_SMD:SW_SPST_FSMSM | SW2 |
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Questions
How big is the Mp3 PCB?
It measures 82.4 × 58.1 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Mp3 use?
92 parts, built around the TPA6132A2RTE, TPS63001DRC, DW01A and PCM5102APW. 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 Mp3 KiCad files?
From the Yashsharda2/MP3_PCB repository on GitHub, at the commit this page was made from: the board is Mp3.kicad_pcb and its schematic Mp3.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Mp3 design in my own project?
Its repository states no licence, so its author keeps all rights: ask Yashsharda2 before reusing the design.