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aspro648·Arduino·DIY Arduino/Arduino/design_files/Arduino.kicad_pcb

Arduino PCB layout, top view — open source AVR/Arduino board by aspro648

About the Arduino PCB

Arduino is an open source AVR/Arduino PCB design by aspro648, published on GitHub. It is a 2-layer board measuring 68.6 × 53.3 mm, with 43 components from 34 distinct parts.

Its main chip is the ATMEGA328P-AU, from the AVR/Arduino family. Other key parts include the FT231XS, CAHCT1G125QDCKRQ1, SPX3819M5-L-3-3 and AOZ1282CI. By type, the board carries 12 connectors, 10 resistors, 8 capacitors, 5 ICs, 5 diodes and 1 crystal.

From the project

DIY Clones done in KiCAD

You will need to build a FTDI breakout board using a FT231XQ QFN20 chip with a pinout matching the FT231XS (SSOP-20), but in a DIP-20 spacing. It is all downhill from there!

Bill Of Materials ---------------- - 1 ea., DIY Arduino PCB from kicad.pcb file. - 1 ea., FT231x breakout PCB from kicad.pcb file. - 1 ea., U1 L7805CV IC REG LINEAR 5V 1.5A TO220AB, https://www.digikey.com/short/jn9qzp - 1 ea., U2 FT231XQ 20QFN, https://www.digikey.com/short/jn57wn - 1 ea., U3 SN74LS125AN, IC BUF NON-INVERT 5.25V 14DIP, https://www.digikey.com/short/jn973j - 1 ea., U4 MCP1700-3302E/TO IC REG LINEAR 3.3V…

Arduino, from the project README
From the project README

Main components on the Arduino

FT231XSCAHCT1G125QDCKRQ1SPX3819M5-L-3-3AOZ1282CIATMEGA328P-AU

Arduino bill of materials (BOM)

43 components, 34 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
FT231XS
LM7805
FTDI chip
U1
1
CAHCT1G125QDCKRQ1
FT231XS
Texas Instruments
U2
1
SPX3819M5-L-3-3
74LS125
Exar Corporation
U3
1
AOZ1282CI
MCP1700T
ALPHA&OMEGA SEMICONDUCTOR
U4
1
ATMEGA328P-AU
ATMEGA328P-PU
ATMEL
U5
1
16Mhz
Y1
1
ISP
CON1
1
USB_B
J1
1
BARREL_JACK
J2
1
PWR_SEL
J3
1
Power
P1
1
Analog
P2
1
Digital
P3
1
Digital
P4
4
CONN_01X01
P5, P6, P7, P8
1
1.1A
PTC Fuse
Bel Fuse Inc
F1
1
Reset
C&K Components
SW1
1
MSS1P3L
Schottky
VISHAY SEMICONDUCTOR
D1
1
1N4148
PWR
Diodes Inc
D2
1
MSS1P3L
TX
VISHAY SEMICONDUCTOR
D3
Show 14 more
QtyPartRefs
1
1N4148
RX
Diodes Inc
D4
1
LED
D13
1
0.33uF
C1
1
0.1uF
C2
3
0.1UF
0.1uF
Samsung Electro-Mechanics America, Inc.
C3, C4, C5
2
10UF
1uF
AVX Corporation
C6, C8
1
0.1UF
1uF
Samsung Electro-Mechanics America, Inc.
C7
1
27R
4K7
UniOhm
R1
1
27R
1K
UniOhm
R2
2
470R
470
UniOhm
R3, R4
2
27R
UniOhm
R5, R6
2
10K
R7, R8
1
47K
10K
UniOhm
R9
1
47K
1K
UniOhm
R13

Arduino design files

The KiCad project lives in the aspro648/Arduino repository on GitHub; these links point at the commit this page was built from.

Arduino: common questions

What microcontroller does the Arduino use?

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

How big is the Arduino PCB?

The Arduino measures 68.6 × 53.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Arduino?

43 components, from 34 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 Arduino design files?

From the aspro648/Arduino repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Arduino design in my own project?

The repository has no license, so all rights stay with aspro648. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Arduino 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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