

Step switch board
A Euroack drum machine
- Size
- 217 × 27.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 85
- Nets
- 62
- Pads
- 287
- Tracks, vias
- 615, 52
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 3 Jan 2016
- Updated
- 4 Feb 2020
Overview
Step switch board is an open-source printed circuit board by minisystem, from the minisystem/880 repository on GitHub. It is a 2-layer board of 217 × 27.5 mm with 85 parts on 62 nets, routed with 615 tracks and 52 vias.
It is built around the 74HC165D. Its parts include 33 resistors, 16 diodes, 16 switches, 4 capacitors and 4 ICs.
Main components
1README
README.mdSYSTEM 80 808
Analogue drum machine in Eurorack format. It is currently under heavy development.
Hardware design by Minisystem: info@system80.net
LICENSE
cc by-nc-sa https://creativecommons.org/licenses/by-nc-sa/4.0/
Parts
85| Qty | Value | Footprint | References |
|---|---|---|---|
| 17 | 10K | MyModules:SM0603-R-JRL | R451, R452, R453, R454, R455, R456, R457, R458, R459, R460, R461, R462, R463, R464, R465, R466 +1 |
| 16 | 470 | MyModules:SM0603-R-JRL | R468, R469, R470, R471, R472, R473, R474, R475, R476, R477, R478, R479, R480, R481, R482, R483 |
| 4 | 0.1µ | MyModules:SM0603-C-JRL | C192, C193, C194, C195 |
| 3 | VAL** | MyModules:SNAP_HOLE_0.125_INCH | SNAP-HOLE-0.125-INCH, SNAP-HOLE-0.125-INCH, SNAP-HOLE-0.125-INCH |
| 3 | VAL** | MyModules:HOLE-M3 | HOLE-M3, HOLE-M3, HOLE-M3 |
| 2 | 74AC595 | Housings_SSOP:TSSOP-16_4.4x5mm_Pitch0.65mm | U40, U41 |
| 2 | 74HC165 | Housings_SSOP:TSSOP-16_4.4x5mm_Pitch0.65mm | U38, U39 |
| 1 | CONN_01X08 | MyModules:Molex_522710479_8_FFC | P3 |
| 1 | CONN_1 | MyModules:TEST_POINT_SMALL | TP20 |
| 1 | STEP1 | MyModules:BF-4050-OMRON | SW23 |
| 1 | STEP1 | MyModules:3MM-LED-C1A2 | D93 |
| 1 | STEP10 | MyModules:BF-4050-OMRON | SW32 |
| 1 | STEP10 | MyModules:3MM-LED-C1A2 | D86 |
| 1 | STEP11 | MyModules:BF-4050-OMRON | SW33 |
| 1 | STEP11 | MyModules:3MM-LED-C1A2 | D87 |
| 1 | STEP12 | MyModules:BF-4050-OMRON | SW34 |
| 1 | STEP12 | MyModules:3MM-LED-C1A2 | D88 |
| 1 | STEP13 | MyModules:BF-4050-OMRON | SW35 |
| 1 | STEP13 | MyModules:3MM-LED-C1A2 | D89 |
| 1 | STEP14 | MyModules:3MM-LED-C1A2 | D90 |
| 1 | STEP14 | MyModules:BF-4050-OMRON | SW36 |
| 1 | STEP15 | MyModules:3MM-LED-C1A2 | D91 |
| 1 | STEP15 | MyModules:BF-4050-OMRON | SW37 |
| 1 | STEP16 | MyModules:3MM-LED-C1A2 | D92 |
| 1 | STEP16 | MyModules:BF-4050-OMRON | SW38 |
| 1 | STEP2 | MyModules:BF-4050-OMRON | SW24 |
| 1 | STEP2 | MyModules:3MM-LED-C1A2 | D73 |
| 1 | STEP3 | MyModules:BF-4050-OMRON | SW25 |
| 1 | STEP3 | MyModules:3MM-LED-C1A2 | D74 |
| 1 | STEP4 | MyModules:3MM-LED-C1A2 | D75 |
| 1 | STEP4 | MyModules:BF-4050-OMRON | SW26 |
| 1 | STEP5 | MyModules:3MM-LED-C1A2 | D76 |
| 1 | STEP5 | MyModules:BF-4050-OMRON | SW27 |
| 1 | STEP6 | MyModules:BF-4050-OMRON | SW28 |
| 1 | STEP6 | MyModules:3MM-LED-C1A2 | D77 |
| 1 | STEP7 | MyModules:BF-4050-OMRON | SW29 |
| 1 | STEP7 | MyModules:3MM-LED-C1A2 | D78 |
| 1 | STEP8 | MyModules:BF-4050-OMRON | SW30 |
| 1 | STEP8 | MyModules:3MM-LED-C1A2 | D79 |
| 1 | STEP9 | MyModules:BF-4050-OMRON | SW31 |
| 1 | STEP9 | MyModules:3MM-LED-C1A2 | D94 |
The 81 most common of 85 parts.
Questions
How big is the Step switch board PCB?
It measures 217 × 27.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Step switch board use?
85 parts, built around the 74HC165D. 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 Step switch board KiCad files?
From the minisystem/880 repository on GitHub, at the commit this page was made from: the board is step_switch_board/step_switch_board.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Step switch board design in my own project?
Its repository states no licence, so its author keeps all rights: ask minisystem before reusing the design.
More from minisystem/880
2- 2 layers300 × 105 mm

- 2 layers33.5 × 39.5 mm

Similar boards
- 2 layers181 × 97 mm

OpenDeck r3.1.2
shanteacontrols/OpenDeck
A platform for building interactive control and sensing devices using MIDI and OSC built with Zephyr RTOS.
262 parts960Apache-2.0 - 2 layers245.1 × 160 mm

8-Bit CPU 32k
slu4coder/Minimal-64x4-Home-Computer
My DIY TTL home computer with VGA and PS/2 and 4x the processing power of a Commodore C64 or Apple II.
139 parts326 - 2 layers191.8 × 121.3 mm

8-Bit CPU 32k
slu4coder/Minimal-UART-Computer-1-2
Legacy: Version 1 and 2 of my TTL-only CPU featuring UART I/O, an expansion port, 512KB SSD at up to 10MHz clock speed
109 parts184 - 2 layers135.9 × 87 mm

- 2 layers171.5 × 106.7 mm

Sequencer
westlicht/performer-hardware
PER|FORMER Eurorack Sequencer - Hardware Design Files
435 parts110 - 2 layers306.1 × 130.2 mm

8-Bit CPU 32k
slu4coder/Minimal-64-Home-Computer
Legacy: Full TTL-only home computer with VGA and PS/2 and twice the processing power of a Commodore 64
132 parts94 - 2 layers215.9 × 20.3 mm

- 4 layers100 × 100 mm
