HardLabs

TrebleSynth

sinitsinmike·TrebleSynth·TrebleSynth/TrebleSynth.kicad_pcb

TrebleSynth PCB layout, top view — open source RP2040/RP2350 board by sinitsinmike

About the TrebleSynth PCB

TrebleSynth is an open source RP2040/RP2350 PCB design by sinitsinmike, published on GitHub. It is a 2-layer board measuring 236 × 128 mm, with 210 components from 43 distinct parts.

Its main chip is the Pico, from the RP2040/RP2350 family. Other key parts include the LM358, LM7805_TO220, TL431LP, 4051 and PC817. By type, the board carries 74 resistors, 48 capacitors, 32 switches, 14 ICs, 8 connectors and 6 transistors.

It belongs with the audio designs in this gallery.

From the project

The TrebleSynth is a "Modular Synth on a Chip" based on the Raspberry Pi Pico. It is a through-hole design that is easy to assemble yourself and uses only inexpensive generic parts that are widely available to minimize costs. One can create various modules on the chip and interco

The TrebleSynth is a "Modular Synth on a Chip" based on the Raspberry Pi Pico. It is a through-hole design that is easy to assemble yourself and uses only inexpensive generic parts that are widely available to minimize costs. One can create various modules on the chip and interconnect them by specifying which unit takes input from another input, assign the controls of these modules to potentiometers, and then adjust the potentiometers to achieve your desired sound. It also has a fully capable effects module on the chip as well. The modular synth supports six note polyphony.

TrebleSynth, from the project README
From the project README

Main components on the TrebleSynth

LM358PicoLM7805_TO220TL431LP4051PC817MicroSD_SPI_CD

TrebleSynth bill of materials (BOM)

210 components, 43 distinct parts.

QtyPartRefs
2
LM358
U1, U2
1
Pico
U3
1
LM7805_TO220
U4
1
TL431LP
U5
7
4051
U6, U8, U9, U10, U11, U12, U13
1
PC817
U7
1
MicroSD_SPI_CD
U14
6
2N3904
Q1, Q2, Q3, Q4, Q5, Q6
1
INPUT
J1
3
INPUT
J2, J8, J9
1
OUTPUT
J3
1
Barrel_Jack_Switch
J5
2
DIN-5_180degree
J10, J11
2
POWER
JP1, JP2
1
10k
RV1
21
10k
RV2, RV3, RV4, RV5, RV6, RV7, RV8, RV9 +13
32
SW_Push
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +24
1
SSD1306
Brd1
1
1N5819
D1
2
1N4148
D2, D3
Show 23 more
QtyPartRefs
18
100 nF
C1, C6, C14, C18, C21, C24, C25, C28 +10
6
100 uF
C2, C19, C20, C34, C35, C48
1
1000 pF
C3
9
10 uF
C4, C5, C7, C10, C11, C15, C16, C17 +1
3
22 nF
C8, C12, C36
1
2200 pF
C9
2
4700 pF
C13, C37
2
10 nF
C22, C31
3
100 pF
C23, C26, C27
2
220 uF
C32, C33
1
22 pF
C46
25
1k
R1, R8, R10, R11, R12, R13, R14, R15 +17
1
470R
R2
6
100R
R3, R22, R24, R27, R46, R74
3
1M
R4, R21, R45
5
220R
R5, R62, R65, R66, R69
1
220k
R6
3
NC
R7, R47, R48
1
4k7
R9
10
10k
R23, R26, R36, R37, R38, R40, R42, R44 +2
6
2k2
R25, R43, R68, R71, R72, R73
10
2k
R28, R29, R31, R33, R35, R49, R53, R54 +2
3
10R
R58, R59, R60

TrebleSynth design files

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

TrebleSynth: common questions

What microcontroller does the TrebleSynth use?

The TrebleSynth is built around the Pico, from the RP2040/RP2350 family.

How big is the TrebleSynth PCB?

The TrebleSynth measures 236 × 128 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the TrebleSynth?

210 components, from 43 distinct parts. The full bill of materials is listed on this page.

Where can I download the TrebleSynth design files?

From the sinitsinmike/TrebleSynth repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the TrebleSynth design in my own project?

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

Can I test firmware for the TrebleSynth 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.

Similar boards