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Ribbon synth

ideocentric·ribbon-synth·hardware/pcb/absonus-v0.2/absonus-v0.2.kicad_pcb

Ribbon synth PCB layout, top view — open source board by ideocentric
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About the Ribbon synth PCB

Ribbon synth is an open source PCB design by ideocentric, published on GitHub under the MIT license. It is a 2-layer board measuring 50.8 × 101.6 mm, with 16 components from 15 distinct parts.

Other key parts include the LS18-P and DAISY_SEED_REV4. By type, the board carries 9 connectors, 3 modules, 2 resistors, 1 IC and 1 capacitor.

It belongs with the audio, power & battery and sensors designs in this gallery, and the repository also holds 1 earlier revision of it.

From the project

Ribbon Synthesizer using Daisy Seed.

A touch-controlled FM ribbon synthesizer built on the Electrosmith Daisy Seed platform. Pitch is controlled by a 150mm soft-pot ribbon sensor; expression by a force-sensitive resistor. A panel of knobs and switches shapes the FM synthesis, distortion, filter, tremolo, and reverb.

- Firmware Architecture — signal chain, DSP modules, pin mapping, portamento times - Design Notes — panel layout, Daisy Seed pin assignments, component selection notes - Sourced Components BOM — hand-sourced parts with supplier links - PCB Assembly BOM — JLCPCB SMT assembly BOM for the main board

Main components on the Ribbon synth

LS18-PDAISY_SEED_REV4

Ribbon synth bill of materials (BOM)

16 components, 15 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
LS18-P
U1
1
DAISY_SEED_REV4
Daisy_Seed_Rev4
PM254-1-20-Z-8.5
A1
2
PINHEADER_1X20_P2.54MM_VERTICAL
PinHeader_1x20_P2.54mm_Vertical
A2, A3
1
C160404
i2c Qwiic
SM04B-SRSS-TB(LF)(SN)
J1
1
C158012
DC 5V
J3
1
C158012
Pressure
B2B-XH-A(LF)(SN)
J4
1
SW1
J5
1
SW2
J6
1
LED
J7
1
C144394
Position
B3B-XH-AM(LF)(SN)
J8
1
C144394
Audio Out
J9
1
C4749194
2x5 IDC
DS254P-2X5-L0
J10
1
220UF
220uF
RVT1C470M0505
C1
1
10K
10k
0603WAJ0103T5E
R1
1
3k
0603WAF3001T5E
R2

Ribbon synth design files

The KiCad project lives in the ideocentric/ribbon-synth repository on GitHub; these links point at the commit this page was built from.

Ribbon synth: common questions

How big is the Ribbon synth PCB?

The Ribbon synth measures 50.8 × 101.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Ribbon synth?

16 components, from 15 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 Ribbon synth design files?

From the ideocentric/ribbon-synth 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 Ribbon synth design in my own project?

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

More boards in ribbon-synth

Earlier revisions in the repo: absonus-v0.1

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