HardLabs

Speaker

sean618·MakerTiles·hardware/Boards/Speaker/v0.7/Speaker.kicad_pcb

Speaker PCB layout, top view — open source STM32 board by sean618

About the Speaker PCB

Speaker is an open source STM32 PCB design by sean618, published on GitHub under the MIT license. It is a 2-layer board measuring 56.5 × 25 mm, with 40 components from 20 distinct parts.

Its main chip is the C46046, from the STM32 family. Other key parts include the C113367, C81233 and C910544. By type, the board carries 16 capacitors, 9 resistors, 7 connectors, 5 ICs, 1 speaker and 1 test point.

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

From the project

Modular STM32 electronic-tile system: hardware, firmware, the MicroBus + Field Protocol stack, and a Python daemon.

MakerTiles is a system of modular, snap-together electronic tiles. Each tile is a small STM32-based board with a single job — a strip of LEDs, a joystick, a motor, a distance sensor, a screen, a speaker, and so on. Tiles connect on a shared bus, a USB tile bridges the bus to a PC, and a Python daemon on the PC discovers every connected tile and lets you read its inputs and drive its outputs.

Main components on the Speaker

C113367C81233C46046C910544

Speaker bill of materials (BOM)

40 components, 20 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
C113367
PAM8302AAS
U1, U5
1
C81233
ME6211C33M5G-N
U2
1
C46046
STM32F072RBTx
U3
1
C910544
MAX98357AETE+T
U4
1
C5242199
01x06_2.54mm_Male
J1
2
C189700
2p_picoblade
J2, J5
1
01x06_2.54mm_Female
J3
1
swd_4pin
J4
1
C262665
FFC_connector_16p_hinge_lock
J12
1
FFC_connector_16p_hinge_lock
J13
1
Speaker v0.7
IGNORE1
1
Speaker_20x30
LS2
1
TestPoint_2Pole
TP1
7
C1525
0.1uF
C1, C6, C11, C13, C14, C17, C18
7
C23733
4.7uF
C2, C3, C5, C7, C8, C9, C12
2
C1530
220pF
C4, C10
2
C25117
470R
R1, R5
1
C43291
750K
R2
2
C25744
10K
R3, R8
4
C25133
75R
R4, R9, R10, R11

Speaker design files

The KiCad project lives in the sean618/MakerTiles repository on GitHub; these links point at the commit this page was built from.

Speaker: common questions

What microcontroller does the Speaker use?

The Speaker is built around the C46046, from the STM32 family.

How big is the Speaker PCB?

The Speaker measures 56.5 × 25 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Speaker?

40 components, from 20 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 Speaker design files?

From the sean618/MakerTiles 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 Speaker design in my own project?

Yes, under the terms of its MIT license, which sean618 chose for the repository.

Can I test firmware for the Speaker 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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