HardLabs

Silent audio motion

akornsys-rdi·silent-audio-motion·brd/silent-audio-motion.kicad_pcb

Silent audio motion PCB layout, top view — open source AVR/Arduino board by akornsys-rdi

About the Silent audio motion PCB

Silent audio motion is an open source AVR/Arduino PCB design by akornsys-rdi, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 70 × 50 mm, with 68 components from 32 distinct parts.

Its main chip is the ATMEGA328P-AU, from the AVR/Arduino family. Other key parts include the MCP6004, TB6612FNG, MC78M05 and REF3020. By type, the board carries 27 resistors, 17 capacitors, 8 diodes, 7 ICs, 6 connectors and 1 transistor.

It belongs with the audio designs in this gallery.

From the project

Silent audio motion, the system behind «Hablar no es ver» artwork

Silent audio motion, the system behind «Ver no es hablar» artwork

The device generates the movement of a magnet according to an input audio signal. For this purpose the device generates a PWM signal with polarity (positive and negative half cycle) to excite an electromagnet. This signal is proportional to an analog input signal (audio source). It has two symmetrical channels and it responds to different frequencies, signal levels and waveforms.

Main components on the Silent audio motion

MCP6004ATMEGA328P-AUTB6612FNGMC78M05REF3020

Silent audio motion bill of materials (BOM)

68 components, 32 distinct parts.

QtyPartRefs
3
MCP6004
U1, U6, U7
1
ATMEGA328P-AU
U2
1
TB6612FNG
U3
1
MC78M05
U4
1
REF3020
U5
1
DMP2040
Q1
1
16MHz
Y1
1
AUDIO_IN
J1
1
ISP
J2
1
UART
J3
1
OUT_L
J4
1
OUT_R
J5
1
POWER
J8
1
ORANGE
D1
1
BLUE
D2
6
BAT54
D3, D4, D5, D6, D7, D8
1
Choke
L1
10
100nF
C1, C2, C3, C4, C7, C8, C14, C15 +2
2
18pF
C5, C6
2
10µF
C9, C10
Show 12 more
QtyPartRefs
2
330nF
C11, C12
1
470nF
C13
4
20k
R1, R2, R16, R26
3
10k
R3, R7, R17
2
470R
R4, R6
1
1M
R5
4
2k
R8, R9, R18, R19
4
680R
R10, R11, R20, R21
4
1k
R12, R13, R22, R23
2
3k3
R14, R24
2
100R
R15, R25
1
220R
R27

Silent audio motion design files

The KiCad project lives in the akornsys-rdi/silent-audio-motion repository on GitHub; these links point at the commit this page was built from.

Silent audio motion: common questions

What microcontroller does the Silent audio motion use?

The Silent audio motion is built around the ATMEGA328P-AU, from the AVR/Arduino family.

How big is the Silent audio motion PCB?

The Silent audio motion measures 70 × 50 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Silent audio motion?

68 components, from 32 distinct parts. The full bill of materials is listed on this page.

Where can I download the Silent audio motion design files?

From the akornsys-rdi/silent-audio-motion repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Silent audio motion design in my own project?

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

Can I test firmware for the Silent audio motion without the hardware?

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

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