HardLabs

Wand

ayuusweetfish·Malletwand·wand/hw/Wand.kicad_pcb

Wand PCB layout, top view — open source STM32 board by ayuusweetfish
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About the Wand PCB

Wand 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 63.2 × 23.9 mm, with 65 components from 50 distinct parts.

Its main chip is the STM32G030F6Px, from the STM32 family. Other key parts include the SPX3819M5-L-3-3, STM32L011F4Ux, BMI270, MMC5603NJ and nRF24L01P. By type, the board carries 23 capacitors, 15 resistors, 7 ICs, 6 connectors, 3 diodes and 3 inductors.

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)…

Wand, from the project README
From the project README

Main components on the Wand

SPX3819M5-L-3-3STM32G030F6PxSTM32L011F4UxBMI270MMC5603NJnRF24L01PLTC4054ES5-4.2

Wand bill of materials (BOM)

65 components, 50 distinct parts.

QtyPartRefs
1
SPX3819M5-L-3-3
U1
1
STM32G030F6Px
U2
1
STM32L011F4Ux
U3
1
BMI270
U4
1
MMC5603NJ
U5
1
nRF24L01P
U6
1
LTC4054ES5-4.2
U7
1
Vib
M1
1
Si2301
Q1
1
Si2302
Q2
1
16MHz
Y1
2
Conn_01x04
J1, J4
2
Conn_01x03
J2, J3
1
Conn_01x04
J5
1
USB_C_Receptacle_PowerOnly_6P
J6
1
2.4GHz 50R
AE1
1
LiPo
BT1
1
SW_SPST
SW1
1
Vib
SW2
1
SMBJ5.0A
D1
Show 30 more
QtyPartRefs
1
LED
D2
1
MBR0530
D3
1
8.2n
L1
1
2.7n
L2
1
3.9n
L3
1
10n
C1
3
4.7u
C2, C3, C22
1
100n
C4
1
10u
C5
4
100n
C6, C7, C8, C9
1
2.2u
C10
1
1n
C11
1
4.7u
C12
2
10n
C13, C14
1
33n
C15
2
10p
C16, C17
1
1.5p
C18
1
1p
C19
1
2.2n
C20
1
4.7p
C21
1
10u
C23
1
1.2M
R1
3
1k
R2, R3, R10
3
2k TBD
R4, R5, R6
1
3.3M
R7
2
100k
R8, R11
1
22k
R9
2
5.1k
R12, R13
1
2k
R14
1
6.8k
R15

Wand design files

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

Wand: common questions

What microcontroller does the Wand use?

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

How big is the Wand PCB?

The Wand measures 63.2 × 23.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Wand?

65 components, from 50 distinct parts. The full bill of materials is listed on this page.

Where can I download the Wand 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 Wand 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 Wand 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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