Rp2040-chord vco

BleepSound·rp2040-chord-vco·kicad-global/RP2040-VCO.kicad_pcb

About the Rp2040-chord vco PCB

Rp2040-chord vco is an open source RP2040/RP2350 PCB design by BleepSound, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 20 × 128.5 mm, with 54 components from 30 distinct parts.

Its main chip is the SEED_XIAO_RP2040, from the RP2040/RP2350 family. Other key parts include the TL074 and AP2210K-5.0TRG1. By type, the board carries 18 resistors, 16 capacitors, 8 connectors, 4 diodes, 3 ICs and 2 switches.

From the project

Latest documentation available at https://bleepsound.github.io/modules/ VCO clone, originally made by HAGIWO (link in japanese)

This work is licensed under a [Creative Commons Attribution-ShareAlike 4.0 International License][cc-by-sa].

[cc-by-sa]: http://creativecommons.org/licenses/by-sa/4.0/ [cc-by-sa-image]: https://licensebuttons.net/l/by-sa/4.0/88x31.png [cc-by-sa-shield]: https://img.shields.io/badge/License-CC%20BY--SA%204.0-lightgrey.svg

Main components on the Rp2040-chord vco

TL074SEED_XIAO_RP2040AP2210K-5.0TRG1

Rp2040-chord vco bill of materials (BOM)

54 components, 30 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	TL074 Texas Instrument	SOIC-14_3.9x8.7mm_P1.27mm	U1
1	SEED_XIAO_RP2040 Seed_XIAO_RP2040 Seeed Studio	Seed XIAO RP2040	U2
1	AP2210K-5.0TRG1 Diodes Inc.	SOT95P282X130-5N	U3
1	Out	Thonkiconn	J1
1	CONN_01X06_FEMALE Conn_01x06_Female	PinSocket_1x06_P2.54mm_Vertical	J2
1	CONN_01X06_MALE Conn_01x06_Male	PinHeader_1x06_P2.54mm_Vertical	J3
1	CONN_01X08_FEMALE Conn_01x08_Female	PinSocket_1x08_P2.54mm_Vertical	J4
1	CONN_01X08_MALE Conn_01x08_Male	PinHeader_1x08_P2.54mm_Vertical	J5
1	V/oct	Thonkiconn	J6
1	Inv CV	Thonkiconn	J7
1	Power Input	IDC-Header_2x05_P2.54mm_Vertical	J8
3	10K 10k	Pot-bourns-alpha	CHORD1, INV1, TUNE1
1	SW_MEC_LOW_PROF_LED THONK	PB01-109TL	SW1
1	SW_SPDT	SW_Toggle_Blue_wSlots	SW2
4	BAT43 Panjit	D_SOD-123	D1, D2, D3, D4
5	10NF 10nF Samsung Electro-Mechanics	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C1, C2, C3, C8, C9
5	100NF 100nF Kemet	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C4, C5, C7, C11, C16
1	10UF 10uF Samsung Electro-Mechanics	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C6
2	10UF 10uF Kemet	CP_Elec_4x5.4	C10, C15
1	2.2UF 2.2uF Samsung Electro-Mechanics	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C12

Show 10 more

Qty	Part	Footprint	Refs
1	1UF 1uF Samsung Electro-Mechanics	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C13
1	100PF 100pF Wurth Elektronik	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C14
1	6.8K 6.8k KOA Speer	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R1
4	1k KOA Speer	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R2, R3, R5, R6
2	330R YAGEO	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R4, R7
7	10K 10k YAGEO	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R8, R10, R12, R13, R14, R17, R18
1	220K 220k YAGEO	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R9
1	330K 330k KOA Speer	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R11
1	22K 22k YAGEO	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R15
1	33K 33k KOA Speer	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R16

Rp2040-chord vco design files

The KiCad project lives in the BleepSound/rp2040-chord-vco repository on GitHub; these links point at the commit this page was built from.

Layoutkicad-global/RP2040-VCO.kicad_pcb
Schematickicad-global/RP2040-VCO.kicad_sch
BOMdocumentation/bom/RP2040-VCO_V1.5--BoM.xlsx

Rp2040-chord vco: common questions

What microcontroller does the Rp2040-chord vco use?

The Rp2040-chord vco is built around the SEED_XIAO_RP2040, from the RP2040/RP2350 family.

How big is the Rp2040-chord vco PCB?

The Rp2040-chord vco measures 20 × 128.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Rp2040-chord vco?

54 components, from 30 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 Rp2040-chord vco design files?

From the BleepSound/rp2040-chord-vco 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 Rp2040-chord vco design in my own project?

Yes, under the terms of its CC-BY-SA-4.0 license, which BleepSound chose for the repository.

Can I test firmware for the Rp2040-chord vco 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.