HardLabs

Snuadc

vitaldb·snuadc·artwork/snuadc.kicad_pcb

Snuadc PCB layout, top view — open source AVR/Arduino board by vitaldb

About the Snuadc PCB

Snuadc is an open source AVR/Arduino PCB design by vitaldb, published on GitHub. It is a 2-layer board measuring 61.2 × 22.2 mm, with 84 components from 24 distinct parts.

Its main chip is the ATMEGA32U4, from the AVR/Arduino family. Other key parts include the LM2902N and TLV431. By type, the board carries 46 resistors, 26 capacitors, 4 ICs, 2 connectors, 2 diodes and 1 crystal.

From the project

An open source 8ch 10bit analog-digital converter

Main components on the Snuadc

ATMEGA32U4LM2902NTLV431

Snuadc bill of materials (BOM)

84 components, 24 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATMEGA32U4
U2
2
LM2902N
U3, U4
1
TLV431
U5
1
16MHZ
16MHz
Y1
1
AVR-ISP-6
J2
1
PJ211A
J3
1
SW1
SW1
1
USB_B
USB1
2
LED
D1, D2
1
100NH
100nH
L1
1
1UF
105
C3
2
18PF
18pF
C5, C7
5
100NF
104
C6, C9, C10, C12, C13
1
1UF
C
C8
8
20PF
20pF
C14, C16, C20, C22, C24, C26, C28, C30
1
10UF
10uF
C15
8
100NF
100nF
C17, C18, C19, C21, C23, C25, C27, C29
1
10K
R1
2
470
R2, R5
2
22
R3, R4
Show 4 more
QtyPartRefs
16
75K
R6, R7, R8, R9, R10, R12, R13, R18 +8
16
300K
R11, R14, R19, R22, R25, R29, R34, R35 +8
8
10
R15, R16, R17, R20, R23, R26, R31, R42
1
1K
R30

Snuadc design files

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

Snuadc: common questions

What microcontroller does the Snuadc use?

The Snuadc is built around the ATMEGA32U4, from the AVR/Arduino family.

How big is the Snuadc PCB?

The Snuadc measures 61.2 × 22.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Snuadc?

84 components, from 24 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 Snuadc design files?

From the vitaldb/snuadc repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Snuadc design in my own project?

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

Can I test firmware for the Snuadc 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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