HardLabs

3xVCA

odeliy·noise-reap·modules/3xVCA/pcb/3xVCA.kicad_pcb

3xVCA PCB layout, top view — open source AVR/Arduino board by odeliy
Simulate this board

About the 3xVCA PCB

3xVCA is an open source AVR/Arduino PCB design by odeliy, published on GitHub. It is a 2-layer board measuring 28 × 110 mm, with 85 components from 55 distinct parts.

Its main chip is the ATTINY45, from the AVR/Arduino family. Other key parts include the MCP6002 and TL071. By type, the board carries 51 resistors, 9 connectors, 8 diodes, 8 capacitors, 3 ICs and 3 transistors.

Main components on the 3xVCA

ATTINY45MCP6002TL071

3xVCA bill of materials (BOM)

85 components, 55 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATTINY45
TL072CDT
U1
1
MCP6002
TL072CDT
U2
1
TL071
TL072CDT
U3
3
C20526
BC847S
Q1, Q2, Q3
1
OUT1
J1
1
CV1
J2
1
IN1
J3
1
OUT2
J4
1
CV2
J5
1
IN2
J6
1
OUT3
J7
1
CV3
J9
1
IN3
J10
3
10KB
RV1, RV2, RV3
2
1N4148WS
D1, D6
1
C2128
LED
D2
1
C2128
1N4148WS
D3
1
C8598
LED
D4
2
C8598
B5819W
D5, D8
1
LED
D7
Show 35 more
QtyPartRefs
1
1UF
10uF
C4
1
100UF
.1uF
C5
1
C1623
.1uF
C6
2
10UF
.1uF
C7, C11
1
100PF
10uF
C8
1
C14663
.1uF
C9
1
1UF
.1uF
C10
3
100K
3.9K
R1, R2, R36
1
12K$
R3
2
10K
100K
R4, R9
2
10K
33K$
R5, R29
3
10K
1K
R6, R23, R30
1
22K
510R
R7
1
10K
12K$
R8
4
100K
R10, R21, R28, R43
1
510R
100K
R11
3
100K
33K$
R12, R22, R39
1
390R
1K
R13
2
22K
12K
R14, R34
1
220K
510R
R15
4
10K
510R
R16, R32, R33, R50
2
12K
R17, R48
1
20K
3.9K
R18
2
10K
3.9K
R19, R35
3
100K
12K$
R20, R25, R42
1
100K
510R
R24
2
100K
R26, R45
2
22K
100K
R27, R44
2
10K
12K
R31, R51
1
220K
12K$
R37
1
5.1M
100K
R38
1
1.8K
1K
R40
2
510R
R41, R49
1
220K
33K$
R46
1
100K
1K
R47

3xVCA design files

The KiCad project lives in the odeliy/noise-reap repository on GitHub; these links point at the commit this page was built from.

3xVCA: common questions

What microcontroller does the 3xVCA use?

The 3xVCA is built around the ATTINY45, from the AVR/Arduino family.

How big is the 3xVCA PCB?

The 3xVCA measures 28 × 110 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 3xVCA?

85 components, from 55 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 3xVCA design files?

From the odeliy/noise-reap repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the 3xVCA design in my own project?

The repository has no license, so all rights stay with odeliy. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the 3xVCA 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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