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HDD Synth Prototype MK5

MaverickUK·HDDSynth·2_prototype_mk5/hardware/HDD Synth Prototype MK5.kicad_pcb

HDD Synth Prototype MK5 PCB layout, top view — open source RP2040/RP2350 board by MaverickUK
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About the HDD Synth Prototype MK5 PCB

HDD Synth Prototype MK5 is an open source RP2040/RP2350 PCB design by MaverickUK, published on GitHub under the CC-BY-NC-4.0 license. It is a 2-layer board measuring 100.3 × 69.9 mm, with 101 components from 53 distinct parts.

Its main chip is the C41378174, from the RP2040/RP2350 family. Other key parts include the EL357N(C)(TA)-VG, MAX98357AETE+T, TPS63020DSJR, KF350-3.5-2P and TPS25921ADR. By type, the board carries 37 capacitors, 35 resistors, 7 ICs, 5 inductors, 4 connectors and 2 switches.

It belongs with the audio, retro computing and displays & leds designs in this gallery.

From the project

Recreate the sound of mechanical spinning HDDs on retro PCs that use a solid state drive

Inspired by seeing the HDD Clicker project and wanting to more faithfully recreate the sound of old mechanical hard drives spinning up and accessing data. Because the hard drive sounds come from samples, it's possible to replace them with any hard drive recording you'd like or something completely different!

- Sample based recreation of mechanical hard disk drives operating sounds - Spin up when PC is turned on - Idle hum whilst standing by - Access clicks and crackcles - Spin down when PC is turned off - SD card to hold multiple HDD sample packs, to recreate the sound of different…

HDD Synth Prototype MK5, from the project README
From the project README

Main components on the HDD Synth Prototype MK5

EL357N(C)(TA)-VGMAX98357AETE+TC41378174TPS63020DSJRKF350-3.5-2PTPS25921ADRTPS61094DSSR

HDD Synth Prototype MK5 bill of materials (BOM)

101 components, 53 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
EL357N(C)(TA)-VG
Optocoupler_DC_PhotoNPN_AKEC
Everlight
U1
1
MAX98357AETE+T
MAX98357A
Analog Devices
U2
1
C41378174
RP2350_60QFN
U5
1
TPS63020DSJR
TI(德州仪器)
U6
1
KF350-3.5-2P
KEFA(科发)
U7
1
TPS25921ADR
TI(德州仪器)
U8
1
TPS61094DSSR
TI(德州仪器)
U9
1
C8545
2N7002
Q1
1
C20617575
ABM8-272-T3
Y1
1
C49257
Conn_01x03
J2
1
C165948
USB_C_Receptacle_USB2.0_16P
J4
1
C124378
Conn_01x04_Pin
J6
1
C124379
Conn_01x05
J7
1
TF-015
SOFNG(硕方)
Card1
5
C124375
Conn_01x02
H1, H2, H3, H13, H14
2
C318884
TS-1187A-B-A-B
XKB Industrial Precision
S1, S2
1
XL-3528RGBW-HM
XINGLIGHT(成兴光)
LED1
1
SMAJ5.0A
D1
1
C81598
1N4148W
D3
2
BLM21PG221SN1D
FerriteBead_Small
FB1, FB2
Show 33 more
QtyPartRefs
1
C42411119
3.3u
L1
1
C167804
2.2 µH
L2
1
FNR4018S1R5MT
cjiang(长江微电)
L3
3
CL10B104KO8NNNC
0.1uF
C1, C6, C26
2
CL31A106KAHNNNE
10uF
C2, C5
2
0603B102K500NT
1nF
C3, C4
1
CL31A106KAHNNNE
15p
C7
1
CL10B104KO8NNNC
15p
C8
12
C1525
100nF
C10, C14, C17, C18, C19, C20, C21, C22 +4
2
C23733
4.7uF
C12, C13
2
C23733
4.7uF
C15, C16
5
C15850
10uF
C25, C28, C30, C36, C37
4
C45783
22uF
C29, C31, C32, C39
1
4.7NF
4.7nF
C34
1
1UF
1uF
C35
1
C134801
100uF
C38
2
RC0603FR-07330RL
330R
R1, R2
1
C17168
0
R7
2
C25905
5.1K
R8, R11
4
C11702
1K
R10, R12, R14, R26
3
C25105
33R
R13, R18, R20
2
C25100
27R
R15, R16
4
C25741
100K
R17, R30, R40, R41
1
C25087
200R
R19
1
C25768
22K
R22
2
C25744
10K
R23, R35
2
RC0603FR-071KL
22K
R24, R25
4
C25792
47K
R27, R28, R29, R33
1
C25769
24K
R31
1
C25778
330K
R32
1
C25750
120K
R34
1
C2909311
110K
R36
3
C25798
75K
R37, R38, R39

HDD Synth Prototype MK5 design files

The KiCad project lives in the MaverickUK/HDDSynth repository on GitHub; these links point at the commit this page was built from.

HDD Synth Prototype MK5: common questions

What microcontroller does the HDD Synth Prototype MK5 use?

The HDD Synth Prototype MK5 is built around the C41378174, from the RP2040/RP2350 family.

How big is the HDD Synth Prototype MK5 PCB?

The HDD Synth Prototype MK5 measures 100.3 × 69.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the HDD Synth Prototype MK5?

101 components, from 53 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 HDD Synth Prototype MK5 design files?

From the MaverickUK/HDDSynth 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 HDD Synth Prototype MK5 design in my own project?

It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.

Can I test firmware for the HDD Synth Prototype MK5 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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