HardLabs

Samplooler stack top

willbearfruits·samplooler·hardware/stack-top/samplooler-stack-top.kicad_pcb

Samplooler stack top PCB layout, top view — open source board by willbearfruits

About the Samplooler stack top PCB

Samplooler stack top is an open source PCB design by willbearfruits, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 90 × 64 mm, with 6 components from 5 distinct parts.

Other key parts include the OLED 0.96in and INMP441. By type, the board carries 3 capacitors, 2 ICs and 1 connector.

It belongs with the audio and sensors designs in this gallery.

From the project

A small looper you play by tilting it: ESP32-S3 and ESP32-C3 firmware, circuit boards, a printable case and a browser flasher

Two PCB designs for the ESP32-S3 build. Both are generated from the Python in gen/:

Both use the kit wiring from firmware/main/pins.h, plus these extras:

- Pogo pins to the SuperMini's 20 underside pads, for 20 more GPIOs: 14–18, 21, 33–42 and 45–48. - Breakouts for every spare GPIO: labelled 2.54 mm pads, ready for a header or wires later. Each board has an EXP A and an EXP B. - Qwiic / STEMMA QT (JST-SH, 3.3 V I2C) for sensors and add-ons. - Header for the optional MAX98357A amp, which hangs off the left edge. - DAC strap jumpers and OLED pin-order jumpers, so module variants need no…

Samplooler stack top, from the project README
From the project README

Main components on the Samplooler stack top

OLED 0.96inINMP441

Samplooler stack top bill of materials (BOM)

6 components, 5 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
OLED 0.96in
U1
1
INMP441
U2
1
To bottom board
J1
1
10U
10u
C1
2
100N
100n
C2, C3

Samplooler stack top design files

The KiCad project lives in the willbearfruits/samplooler repository on GitHub; these links point at the commit this page was built from.

Samplooler stack top: common questions

How big is the Samplooler stack top PCB?

The Samplooler stack top measures 90 × 64 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Samplooler stack top?

6 components, from 5 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 Samplooler stack top design files?

From the willbearfruits/samplooler 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 Samplooler stack top design in my own project?

Yes, under the terms of its GPL-3.0 license, which willbearfruits chose for the repository.

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