HardLabs

Pendu

ayuusweetfish·Malletwand·testdrive/hw/Pendu.kicad_pcb

Pendu PCB layout, top view — open source STM32 board by ayuusweetfish

About the Pendu PCB

Pendu is an open source STM32 PCB design by ayuusweetfish, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 36 × 20 mm, with 26 components from 18 distinct parts.

Its main chip is the STM32G030F6Px, from the STM32 family. Other key parts include the SPX3819M5-L-3-3, BMI270 and MMC5603NJ. By type, the board carries 7 resistors, 6 capacitors, 4 ICs, 4 connectors, 2 transistors and 1 battery holder.

It belongs with the iot & wireless designs in this gallery.

From the project

A pendulum as a hands-on musical interface for all · NIME 2024 Short Paper

Malletwand is a handheld controller device in the form of a pendulum (a handle with a swinging bob), which can act as an input interface to the timing of musical playback.

We present this at NIME 2024 as a short paper (PDF; video to-be-updated) in paper session 10, on Friday, 6 Sep.

The following directories contain all the files for design and implementation (hardware, firmware, and mechanical). - wand/: the handheld controller (the "Wand"). - Hardware is a single PCB; firmware for the two controllers are in subdirectories fw/ (the main one) and fwbob/ (the small one in the bob/ball)…

Pendu, from the project README
From the project README

Main components on the Pendu

SPX3819M5-L-3-3STM32G030F6PxBMI270MMC5603NJ

Pendu bill of materials (BOM)

26 components, 18 distinct parts.

QtyPartRefs
1
SPX3819M5-L-3-3
U1
1
STM32G030F6Px
U2
1
BMI270
U3
1
MMC5603NJ
U4
2
Si2301DS
Q1, Q2
1
Conn_01x04
J1
1
Conn_01x08
J2
2
Conn_01x05
J3, J4
1
LIR2016
BT1
1
Vib
SW1
1
LED_RABG
D1
1
10n
C1
1
4.7u
C2
3
100n
C3, C5, C6
1
2.2u
C7
3
1.2M
R1, R2, R3
1
1k
R4
3
TBD
R5, R6, R7

Pendu design files

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

Pendu: common questions

What microcontroller does the Pendu use?

The Pendu is built around the STM32G030F6Px, from the STM32 family.

How big is the Pendu PCB?

The Pendu measures 36 × 20 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Pendu?

26 components, from 18 distinct parts. The full bill of materials is listed on this page.

Where can I download the Pendu design files?

From the ayuusweetfish/Malletwand repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Pendu design in my own project?

Yes, under the terms of its CERN-OHL-S-2.0 license, which ayuusweetfish chose for the repository.

Can I test firmware for the Pendu without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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