HardLabs

Trim

ohmtech-rdi·eurorack-blocks·blocks/trim/trim.kicad_pcb

Trim PCB layout, top view — open source board by ohmtech-rdi
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About the Trim PCB

Trim is an open source PCB design by ohmtech-rdi, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 17 × 19 mm, with 5 components from 5 distinct parts.

By type, the board carries 3 connectors and 1 capacitor.

It belongs with the audio designs in this gallery.

From the project

Software to Hardware Prototyping for Eurorack using C++, Max/Gen~ or Faust

This block is a simple potentiometer, using a trim pot, typically used for attenuverters. Its design is detailed here.

- This block needs its GND to be connected to the ground. All GND pins are connected internally, - This block needs its 3V3A to be connected to the Daisy Seed 3V3 Analog Power I/O on Pin 21, - The signal OUT is the potentiometer value. It should be connected to any Analog GPIO of the target MCU. See Daisy Seed pinout for details.

Trim bill of materials (BOM)

5 components, 5 distinct parts.

QtyPartRefs
1
OUT
J1
1
GND
J2
1
3V3
J3
1
100k
RV1
1
100n
C1

Trim design files

The KiCad project lives in the ohmtech-rdi/eurorack-blocks repository on GitHub; these links point at the commit this page was built from.

Trim: common questions

How big is the Trim PCB?

The Trim measures 17 × 19 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Trim?

5 components, from 5 distinct parts. The full bill of materials is listed on this page.

Where can I download the Trim design files?

From the ohmtech-rdi/eurorack-blocks repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Trim design in my own project?

Yes, under the terms of its CC-BY-SA-4.0 license, which ohmtech-rdi chose for the repository.

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