Cf mp3-player

will127534·cf-mp3-player·hardware/cf_mp3_player.kicad_pcb

About the Cf mp3-player PCB

Cf mp3-player is an open source RP2040/RP2350 PCB design by will127534, published on GitHub under the MIT license. It is a 4-layer board measuring 62.8 × 61.7 mm, with 111 components from 51 distinct parts.

Its main chip is the RP2354B, from the RP2040/RP2350 family. Other key parts include the ECS-2520MV-240-DN-TR, TPSM82821SILR, APS6404L-3SQR-SN, TLV3201AIDBVR and LP5912-3.3DRVR. By type, the board carries 44 capacitors, 42 resistors, 8 ICs, 6 connectors, 6 switches and 3 diodes.

It belongs with the power & battery designs in this gallery.

From the project

A simple MP3/WAV/FLAC player using CF card

KiCad 8 design files for the rev3 CF MP3 Player board, the board the firmware in this repository targets (BOARDREV3=1`, the default build). The silkscreen reads "CF Card MP3 Player V2.1"; the firmware and docs call this board rev3.

The schematic is also available as a PDF.

The Gerbers match the fabricated rev3 boards. Compared with the set sent to fab on 2026-06-19, the only differences are the board's position on the sheet and one F.Cu copper-pour outline that moved by up to 0.12 mm when the zones were refilled. Tracks, pads, vias, mask, paste, silkscreen, outline and drill hits are…

Cf mp3-player, from the project README — From the project README

Main components on the Cf mp3-player

ECS-2520MV-240-DN-TR TPSM82821SILR APS6404L-3SQR-SN TLV3201AIDBVR RP2354B LP5912-3.3DRVR BQ24075RGTR TAC5212IRGER

Cf mp3-player bill of materials (BOM)

111 components, 51 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	ECS-2520MV-240-DN-TR ECS	Oscillator_SMD_Abracon_ASDMB-4Pin_2.5x2.0mm	U1
1	TPSM82821SILR Texas Instruments	TPSM82821SILR	U2
1	APS6404L-3SQR-SN AP Memory	Winbond_USON-8-1EP_3x2mm_P0.5mm_EP0.2x1.6mm	U3
1	TLV3201AIDBVR Texas Instruments	SOT-23-5	U4
1	RP2354B Raspberry Pi	RP2350-QFN-80-1EP_10x10_P0.4mm_EP3.4x3.4mm_ThermalVias	U5
1	LP5912-3.3DRVR LP5912-3.3DRV Texas Instruments	WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm_ThermalVias	U7
1	BQ24075RGTR BQ24075RGT Texas Instruments	VQFN-16-1EP_3x3mm_P0.5mm_EP1.6x1.6mm	U8
1	TAC5212IRGER Texas Instruments	VQFN24_RGE_CORNERPADS_TEX	U9
1	ABM8-272-T3 Abracon	Crystal_SMD_3225-4Pin_3.2x2.5mm	Y1
1	U262-161N-4BVC11 XKB Connectivity	USB_C_Receptacle_XKB_U262-16XN-4BVC11	J1
1	N7E50-A516xx-30 CompactFlash 3M	CF-Card_3M_N7E50-A516xx-30	J2
2	SM03B-SRSS-TB(LF)(SN) SM03B-SRSS-TB JST	JST_SH_SM03B-SRSS-TB_1x03-1MP_P1.00mm_Horizontal	J4, J8
1	BL-5C_CONTACTS BL-5C_Contacts	bl-4C	J6
1	PJ-320D	Jack_3.5mm_PJ320D_Horizontal	J7
1	SIQ-02FVS3 Mitsumi	SW_Mitsumi_SIQ-02FVS3_Encoder_Slide_SMD	SW1
1	434133025816 Wurth Elektronik	SW_Push_1P1T_NO_Vertical_Wuerth_434133025816	SW2
3	EVQ-PUM02K Panasonic	Panasonic_EVQPUM_EVQPUD	SW3, SW4, SW5
1	JS102011SAQN C&K	SW_SPDT_CK_JS102011SAQN	SW6
1	LTST-C235KGKRKT Lite-On	LED_LiteOn_LTST-C235KGKRKT	D2
2	LED	LED_0603_1608Metric	D3, D4

Show 31 more

Qty	Part	Footprint	Refs
1	3.3UH 3.3uH	L_pol_2016	L1
5	100NF 100nF	C_0402_1005Metric	C1, C5, C30, C34, C35
7	1UF 1uF	C_0402_1005Metric	C2, C28, C32, C33, C36, C40, C44
4	10UF 10uF	C_0402_1005Metric	C3, C8, C31, C38
1	4.7UF 4.7uF	C_0603_1608Metric	C4
2	15PF 15pF	C_0402_1005Metric	C6, C7
2	4.7UF 4.7uF	C_0402_1005Metric_small_pads	C9, C10
2	4.7UF 4.7uF	C_0402_1005Metric	C11, C12
11	100nF	C_0402_1005Metric	C13, C14, C15, C16, C17, C18, C19, C20 +3
1	100UF 100uF	CP_EIA-6032-20_AVX-F	C21
1	10UF 10uF	C_0603_1608Metric	C22
2	100UF 100uF	C_1812_4532Metric	C26, C27
1	47PF 47pF	C_0402_1005Metric	C29
2	22UF 22uF	C_0805_2012Metric	C37, C39
3	4.7uF	C_0603_1608Metric	C41, C42, C43
4	5.1K	R_0402_1005Metric	R1, R2, R5, R8
3	4.7K	R_0402_1005Metric	R3, R18, R19
3	47K ERJ-2RKF22R0X	R_0402_1005Metric	R4, R6, R9
4	10K	R_0402_1005Metric	R7, R11, R27, R28
2	ERJ-2RKF22R0X 22R ERJ-2RKF22R0X	R_0402_1005Metric	R10, R26
2	1K	R_0402_1005Metric	R12, R13
1	33R	R_0402_1005Metric	R14
2	100K ERJ-2RKF22R0X	R_0402_1005Metric	R15, R25
2	27R	R_0402_1005Metric	R16, R17
5	27R	R_0402_1005Metric	R20, R21, R22, R23, R24
1	1M ERJ-2RKF22R0X	R_0402_1005Metric	R29
1	2.2K ERJ-2RKF22R0X	R_0402_1005Metric	R30
7	10K	R_0402_1005Metric	R31, R32, R33, R34, R36, R37, R38
1	0R	R_0402_1005Metric	R35
1	3.9K ERJ-2RKF22R0X	R_0402_1005Metric	R39
3	4.7K	R_0402_1005Metric	R40, R41, R42

Cf mp3-player design files

The KiCad project lives in the will127534/cf-mp3-player repository on GitHub; these links point at the commit this page was built from.

Layouthardware/cf_mp3_player.kicad_pcb
Schematichardware/cf_mp3_player.kicad_sch
BOMhardware/bom/cf_mp3_player_bom.csv

Cf mp3-player: common questions

What microcontroller does the Cf mp3-player use?

The Cf mp3-player is built around the RP2354B, from the RP2040/RP2350 family.

How big is the Cf mp3-player PCB?

The Cf mp3-player measures 62.8 × 61.7 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Cf mp3-player?

111 components, from 51 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 Cf mp3-player design files?

From the will127534/cf-mp3-player repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Cf mp3-player design in my own project?

Yes, under the terms of its MIT license, which will127534 chose for the repository.

Can I test firmware for the Cf mp3-player 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.