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Dubsiren rp2040

sdrum01·dubsiren_rp2040·KiCad/VCO_RPIpico.kicad_pcb

Dubsiren rp2040 PCB layout, top view — open source RP2040/RP2350 board by sdrum01

About the Dubsiren rp2040 PCB

Dubsiren rp2040 is an open source RP2040/RP2350 PCB design by sdrum01, published on GitHub. It is a 2-layer board measuring 138 × 83 mm, with 81 components from 48 distinct parts.

Its main chip is the RaspberryPi-Pico, from the RP2040/RP2350 family. Other key parts include the PT2399 and L7805. By type, the board carries 26 resistors, 24 capacitors, 12 diodes, 8 switches, 2 ICs and 2 connectors.

It belongs with the audio designs in this gallery.

From the project

Simple Dubsiren with RaspberryPi-pico

DUBSIRENrp2040 is a project designed to emulate a analog frequency generator for dub and reggae music. The result is the "DUB-IY**" dub siren.

Dub sirens are simple synthesizers without VCA (Voltage Controlled Amplifier) or VCF (Voltage Controlled Filter), but usually with a VCO (Voltage Controlled Oscillator) modulated by an LFO (Low Frequency Generator).

Such sirens are typically built with analog circuits. The challenge, however, was to optimize the parameter storage of digital solutions, simplify the electronics and to make it hackable.

Main components on the Dubsiren rp2040

PT2399L7805RaspberryPi-Pico

Dubsiren rp2040 bill of materials (BOM)

81 components, 48 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
PT2399
U2
1
L7805
U3
1
RaspberryPi-Pico
A1
1
AudioJack3_Ground
J1
1
Power Jack
J2
3
10k
RV1, RV2, RV3
2
100k
RV4, RV5
1
50k
RV6
1
LFO1/2
SW1
1
Select LFO WaveForm
SW2
1
Fire4
SW3
1
Fire3
SW4
1
Fire2
SW5
1
Fire1
SW6
1
Shift2/Save
SW7
1
Shift1 / Select Bank
SW8
1
LED LFO2 yel
D1
1
LED LFO1 yel
D2
1
LED Shift1 yel
D3
1
LED Fire1 blu
D4
Show 28 more
QtyPartRefs
1
LED Fire2 blu
D5
1
LED Fire3 blu
D6
1
LED Fire4 blu
D7
1
LED_WF_Squ
D8
1
LED Save red
D9
1
LED_WF_Tri
D10
1
LED_WF_Saw
D11
1
SK110
D20
2
100µ
C1, C8
6
100n
C2, C3, C4, C5, C6, C7
1
47µ
C9
3
100n
C10, C14, C15
2
560pF
C11, C20
1
3,9nF
C12
1
68nF
C13
1
3,3nF
C16
2
4,7µ
C17, C18
1
10n
C19
2
10µ
C21, C23
1
82nF
C22
1
220n
C24
11
680
R2, R3, R7, R8, R9, R10, R11, R12 +3
3
1k
R4, R5, R6
2
4,7k
R19, R27
6
10k
R20, R21, R26, R28, R29, R30
2
15k
R22, R25
1
100k
R23
1
5,6k
R24

Dubsiren rp2040 design files

The KiCad project lives in the sdrum01/dubsiren_rp2040 repository on GitHub; these links point at the commit this page was built from.

Dubsiren rp2040: common questions

What microcontroller does the Dubsiren rp2040 use?

The Dubsiren rp2040 is built around the RaspberryPi-Pico, from the RP2040/RP2350 family.

How big is the Dubsiren rp2040 PCB?

The Dubsiren rp2040 measures 138 × 83 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Dubsiren rp2040?

81 components, from 48 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 Dubsiren rp2040 design files?

From the sdrum01/dubsiren_rp2040 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 Dubsiren rp2040 design in my own project?

The repository has no license, so all rights stay with sdrum01. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Dubsiren rp2040 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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