Touchord

dovker·Touchord·Hardware/PCB/Touchord PCB KiCad/Touchord.kicad_pcb

About the Touchord PCB

Touchord is an open source RP2040/RP2350 PCB design by dovker, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 179 × 115 mm, with 52 components from 26 distinct parts.

Its main chip is the RP2350_60QFN, from the RP2040/RP2350 family. Other key parts include the NCP1117-3.3_SOT223, W25Q128JVS, TS5A23157DGSR and USBLC6-2SC6. By type, the board carries 20 capacitors, 18 resistors, 5 ICs, 4 connectors, 2 switches and 1 crystal.

It belongs with the audio designs in this gallery.

From the project

A chord generating midi controller using RP2350

Trademarks: - Touchord™ is a trademark of MB Daugdara - Touchord™ logo is a trademark of MB Daugdara

Intellectual Property: - The Touchord name and logo are the exclusive property of MB Daugdara - Firmware is licensed under GNU General Public License v3.0 - The 3D model design files are licensed under CERN-OHL-S-2.0 - The license does not grant rights to use the company name or logo

Main components on the Touchord

RP2350_60QFN NCP1117-3.3_SOT223 W25Q128JVS TS5A23157DGSR USBLC6-2SC6

Touchord bill of materials (BOM)

52 components, 26 distinct parts.

Qty	Part	Footprint	Refs
1	RP2350_60QFN	RP2350-QFN-60-1EP_7x7_P0.4mm_EP3.4x3.4mm_ThermalVias	U1
1	NCP1117-3.3_SOT223	SOT-223-3_TabPin2	U2
1	W25Q128JVS	SOIC-8_5.3x5.3mm_P1.27mm	U3
1	TS5A23157DGSR	SOP50P490X110-10N	U4
1	USBLC6-2SC6	SOT-23-6	U5
1	ABM8-272-T3	Crystal_SMD_3225-4Pin_3.2x2.5mm	Y1
1	DX07S016JA1R1500	JAE_DX07S016JA1R1500	J1
2	Conn_01x04_MountingPin	JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal	J2, J3
1	AudioJack3	Jack_3.5mm_CUI_SJ-3523-SMT_Horizontal	J4
2	SW_Push	SW_TS-1088-AR02016	SW1, SW2
1	LED	LED_0603_1608Metric	D1
1	3.3u	L_pol_2016	L1
3	10u	C_0805_2012Metric	C1, C5, C19
11	100n	C_0402_1005Metric	C2, C8, C11, C12, C13, C14, C15, C16 +3
2	15p	C_0402_1005Metric	C3, C4
2	4.7u	C_0402_1005Metric_small_pads	C6, C7
2	4.7u	C_0402_1005Metric	C9, C10
3	1k	R_0402_1005Metric	R2, R4, R6
2	5.1k	R_0402_1005Metric	R3, R12
2	33	R_0402_1005Metric	R5, R14

Show 6 more

Qty	Part	Footprint	Refs
2	27	R_0402_1005Metric	R7, R8
1	0	R_0402_1005Metric	R10
1	470	R_0402_1005Metric	R11
1	10	R_0402_1005Metric	R13
2	10k	R_0402_1005Metric	R15, R16
4	4.7k	R_0402_1005Metric	R17, R18, R19, R20

Touchord design files

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

Touchord: common questions

What microcontroller does the Touchord use?

The Touchord is built around the RP2350_60QFN, from the RP2040/RP2350 family.

How big is the Touchord PCB?

The Touchord measures 179 × 115 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Touchord?

52 components, from 26 distinct parts. The full bill of materials is listed on this page.

Where can I download the Touchord design files?

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

Can I use the Touchord design in my own project?

Yes, under the terms of its GPL-3.0 license, which dovker chose for the repository.

Can I test firmware for the Touchord 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.