4 layers154.9 × 128.4 mm Daisy hardware v1, the printed circuit board in 3D

Daisy hardware v1

Q: How big is the Daisy hardware v1 PCB?

It measures 154.9 × 128.4 mm and has 4 copper layers, 4.69 mm thick.

Q: What parts does the Daisy hardware v1 use?

161 parts, built around the R-78E3.3-0.5, MCP6004-E/P, TL072 and 74HC4051. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Q: Where can I download the Daisy hardware v1 KiCad files?

From the rafkhan/lowstepper repository on GitHub, at the commit this page was made from: the board is daisy_hardware_v1/daisy_hardware_v1.kicad_pcb and its schematic daisy_hardware_v1/cv_in.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Q: Can I use the Daisy hardware v1 design in my own project?

Its repository states no licence, so its author keeps all rights: ask rafkhan before reusing the design.

rafkhan/lowstepper9

Dual phase manipulation low frequency oscillator by Okay Synthesizer.

Open in PCBKit

Size: 154.9 × 128.4 mm
Copper layers: 4
Thickness: 4.69 mm
Parts: 161
Nets: 132
Pads: 482
Tracks, vias: 799, 96
Pours: 7
Routed: Yes
KiCad: KiCad 6 (file 20211014)
Created: 9 Sep 2020
Updated: 26 Dec 2025

Overview

Daisy hardware v1 is an open-source printed circuit board by rafkhan, from the rafkhan/lowstepper repository on GitHub. It is a 4-layer board of 154.9 × 128.4 mm with 161 parts on 132 nets, routed with 799 tracks and 96 vias.

It is built around the R-78E3.3-0.5, MCP6004-E/P and TL072, with the 74HC4051, LM1117-5.0 and MMBT3904 among its other parts. Its parts include 45 resistors, 21 connectors, 15 capacitors, 11 ICs and 4 diodes. It belongs with the audio and music boards of this library.

Main components

README

README.md

Lowstepper

text

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                  AN OPEN SOURCE EURORACK MODULE CREATED BY
 
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LowStepper, a synth module by Okay Synthesizer <3

LICENSE

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see https://www.gnu.org/licenses/.

Look, if you're considering selling this... go for it, but we would rather you call us up and collaborate. If you are going to sell it, please make your files available for the community to build on. That's all we ask :)

Maintained, with love, by Okay Synthesizer <3

Parts

161

Qty	Value	Footprint	References
16	PJ398SM-12	lowstepper_internal_footprint_lib:THONK_PJ398SM-12	J2, J3, J4, J5, J7, J8, J10, J11, J12, J13, J14, J15, J16, J17, J18, J19
12	100k	Resistor_SMD:R_0603_1608Metric	R10, R13, R19, R22, R25, R28, R31, R34, R37, R40, R43, R46
8	10k	Potentiometer_THT:Potentiometer_Alpha_RD901F-40-00D_Single_Vertical_CircularHoles	RV1, RV2, RV3, RV4, RV5, RV6, RV7, RV8
8	1n	Capacitor_SMD:C_0603_1608Metric	C5, C6, C7, C8, C9, C10, C11, C12
8	200k	Resistor_SMD:R_0603_1608Metric	R24, R27, R30, R33, R36, R39, R42, R45
8	33k	Resistor_SMD:R_0603_1608Metric	R26, R29, R32, R35, R38, R41, R44, R47
8	MountingHole_THONK_JACK	lowstepper_internal_footprint_lib:MountingHole_THONK_JACK	CV OUT, CV OUT, END OF CYCLE, EOC, RESET, RESET, SYNC, SYNC
7	10k	Resistor_SMD:R_0603_1608Metric	R3, R4, R6, R11, R14, R20, R23
7	3.3k	Resistor_SMD:R_0603_1608Metric	R1, R2, R7, R9, R12, R18, R21
4	MMBT3904	Package_TO_SOT_SMD:SOT-23	Q2, Q3, Q5, Q6
4	MountingHole_5mm	MountingHole:MountingHole_5mm	, , SLOW / FAST / ADSR, SLOW / FAST / ADSR
3	10u	Capacitor_SMD:CP_Elec_4x5.3	C3, C13, C15
3	1k	Resistor_SMD:R_0603_1608Metric	R5, R8, R15
2	100n	Capacitor_SMD:C_0603_1608Metric	C4, C14
2	1N5819HW	Diode_SMD:D_SOD-123	D3, D4
2	47u	Capacitor_SMD:CP_Elec_4x5.3	C1, C2
2	74HC4051	Package_SO:SOIC-16_3.9x9.9mm_P1.27mm	U3, U4
2	Conn_01x18_Female	Connector_PinSocket_2.54mm:PinSocket_1x18_P2.54mm_Vertical	J20, J21
2	Conn_01x18_Male	Connector_PinHeader_2.54mm:PinHeader_1x18_P2.54mm_Vertical	J6, J9
2	LED_Dual_Bidirectional	LED_THT:LED_D5.0mm	D1, D2
2	LOGO	PANELGRAPHICS:lowstepper sync	G*, G*
2	LOGO	PANELGRAPHICS:lowstepper cv out	G*, G*
2	LOGO	PANELGRAPHICS:lowstepper reset	G*, G*
2	LOGO	PANELGRAPHICS:lowstepper switchlabel	G*, G*
2	LOGO	PANELGRAPHICS:lowstepper eoc	G*, G*
2	MCP6004	Package_SO:SO-14_3.9x8.65mm_P1.27mm	U6, U7
2	SW_SPDT	lowstepper_internal_footprint_lib:dailywell_sw_spdt	SW1, SW2
2	TL072	Package_SO:SOIC-8_3.9x4.9mm_P1.27mm	U2, U11
1	Conn_02x05_Odd_Even	Connector_PinHeader_2.54mm:PinHeader_2x05_P2.54mm_Vertical	J1
1	LM1117-5.0	Package_TO_SOT_SMD:SOT-223	U10
1	LM4040DBZ-10	Package_TO_SOT_SMD:SOT-23	U5
1	LOGO	okaysynthlogo:okaysynthlogosmall_plswork	G***
1	LOGO	PANELGRAPHICS:lowstepper channel B	G***
1	LOGO	PANELGRAPHICS:lowstepper morph	G***
1	LOGO	PANELGRAPHICS:lowstepper start	G***
1	LOGO	PANELGRAPHICS:lowstepper end	G***
1	LOGO	PANELGRAPHICS:lowstepper logo	G***
1	LOGO	PANELGRAPHICS:lowstepper rate	G***
1	LOGO	PANELGRAPHICS:lowstepper front okay logo	G***
1	LOGO	PANELGRAPHICS:lowstepper channel A	G***
1	MCP6002-xSN	Package_SO:SOIC-8_3.9x4.9mm_P1.27mm	U8
1	R-78E3.3-0.5	Converter_DCDC:Converter_DCDC_RECOM_R-78E-0.5_THT	U9
1	RAF_DAISY_SEED_V1	lowstepper_internal_footprint_lib:DAISY_SEED_OKAYSYNTH	U1

The 141 most common of 161 parts.

Questions

How big is the Daisy hardware v1 PCB?

It measures 154.9 × 128.4 mm and has 4 copper layers, 4.69 mm thick.

What parts does the Daisy hardware v1 use?

161 parts, built around the R-78E3.3-0.5, MCP6004-E/P, TL072 and 74HC4051. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Daisy hardware v1 KiCad files?

From the rafkhan/lowstepper repository on GitHub, at the commit this page was made from: the board is daisy_hardware_v1/daisy_hardware_v1.kicad_pcb and its schematic daisy_hardware_v1/cv_in.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Daisy hardware v1 design in my own project?

Its repository states no licence, so its author keeps all rights: ask rafkhan before reusing the design.

Category and platform

Audio and music

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/rafkhan-lowstepper" title="Daisy hardware v1 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/rafkhan-lowstepper.jpg" alt="Daisy hardware v1" width="1200" height="900">

A picture that opens the board, for a README

[![Daisy hardware v1](https://pcbkit.io/embed/boards/rafkhan-lowstepper.jpg?size=s)](https://pcbkit.io/boards/rafkhan-lowstepper)

Source

Repository: rafkhan/lowstepper
Board file: daisy_hardware_v1/daisy_hardware_v1.kicad_pcb
Commit: 39e9f8d
Homepage: okaysynthesizer.com/products/lowstepper
Licence: Not stated

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