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2 layers96 × 80 mmSm2k breakout, the printed circuit board in 3D

Sm2k breakout

canvasus/Beatmaster2k15

A rudimentary step sequencer based on a Teensy 4.1 and a Novation Launchpad. It is mainly intended as a "jamming partner", not a full-fledged production tool.

Full screenGitHub.kicad_pcb
Size
96 × 80 mm
Copper layers
2
Thickness
1.6 mm
Parts
30
Nets
45
Pads
134
Tracks, vias
70, 0
Pours
1
Routed
Yes
KiCad
KiCad 6 (file 20211014)
Created
25 Sep 2022
Updated
21 Jan 2023

Overview

Sm2k breakout is an open-source printed circuit board by canvasus, from the canvasus/Beatmaster2k repository on GitHub. It is a 2-layer board of 96 × 80 mm with 30 parts on 45 nets, routed with 70 tracks and 0 vias.

Its parts include 10 resistors, 10 switches, 8 diodes, 1 IC and 1 connector. It belongs with the interfaces and adapters boards of this library.

README

README.md

Beatmaster2k

A rudimentary step sequencer based on a Teensy 4.1 and a Novation Launchpad. It is mainly intended as a "jamming partner", not a full-fledged production tool.

Some basic features/specs:

  • 7 Tracks. Can be set to output midi on serial, device or host ports

  • 8 Patterns per track currently, but lots of room for expansion

  • 64 Scenes, i.e combination of patterns

  • Patterns are edited on the Launchpad. Works during playing

  • Patterns can be set to any length between 1 and 128 steps

  • Patterns have configurable speed

  • Patterns and other settings stored on SD card

Component list:

  • Teensy 4.1
  • SD card
  • ILI9341 display (touch is not used atm)
  • 2 encoders
  • 8 buttons via an MPC23017 expander
  • Powered usb hub
  • Novation Launchpad Mini Mk3

prototype1

(prototype assembly)

cad

(parts for 3D print and milling in Onshape)

Parts

30
QtyValueFootprintReferences
8LEDLED_THT:LED_D3.0mmD1, D2, D3, D4, D5, D6, D7, D8
8R_SmallResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR1, R2, R3, R4, R5, R6, R7, R8
8SW_PushButton_Switch_Keyboard:SW_Cherry_MX_1.00u_PCBSW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8
2RotaryEncoder_SwitchRotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm_CircularMountingHolesSW9, SW10
12,2kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR10
12.2kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR9
1Conn_01x16Connector_IDC:IDC-Header_2x08_P2.54mm_VerticalJ1
1MCP23017_SPPackage_DIP:DIP-28_W7.62mmU1

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Questions

How big is the Sm2k breakout PCB?

It measures 96 × 80 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Sm2k breakout use?

30 parts. 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 Sm2k breakout KiCad files?

From the canvasus/Beatmaster2k repository on GitHub, at the commit this page was made from: the board is pcb/sm2k_breakout/sm2k_breakout.kicad_pcb and its schematic pcb/midiSplitter/midiSplitter/midiSplitter.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Sm2k breakout design in my own project?

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