Switchplate
About the Switchplate PCB
Switchplate is an open source PCB design by dwmorrin, published on GitHub. It is a 2-layer board measuring 340 × 100 mm, with 9 components from 2 distinct parts.
It belongs with the keyboards and displays & leds designs in this gallery.
From the project
hardware-based step sequencer using the Teensy 4.1 microcontroller
This project implements a hardware-based step sequencer using the Teensy 4.1 microcontroller. It utilizes the Teensy's onboard USB Host capabilities to accept input from standard USB keyboards, alongside a custom 32-switch diode matrix for tactile control.
The application is designed as a standalone, embedded instrument. It functions as an 8-track step sequencer with support for 96 PPQN high-resolution timing, pattern chaining (Song Mode), per-track swing, real-time performance triggers, and visual feedback via an I2C OLED display with scrolling track views.
Switchplate bill of materials (BOM)
9 components, 2 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 8 | SJ1-3523N AudioJack2 | Jack_3.5mm_CUI_SJ1-3523N_Horizontal | J1, J2, J3, J4, J5, J6, J7, J8 |
| 1 | TSW-108-14-T-D Conn_02x08_Odd_Even | PinHeader_2x08_P2.54mm_Vertical | J9 |
Switchplate design files
The KiCad project lives in the dwmorrin/teensy-step-sequencer repository on GitHub; these links point at the commit this page was built from.
Switchplate: common questions
How big is the Switchplate PCB?
The Switchplate measures 340 × 100 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Switchplate?
9 components, from 2 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 Switchplate design files?
From the dwmorrin/teensy-step-sequencer 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 Switchplate design in my own project?
The repository has no license, so all rights stay with dwmorrin. Use it as a reference, and ask the author before reusing the design.
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