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Plain60-c

evyd13·plain60-c

Plain60-c PCB layout, top view — open source AVR/Arduino board by evyd13
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About the Plain60-c PCB

Plain60-c is an open source AVR/Arduino PCB design by evyd13, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 284.7 × 94.2 mm, with 175 components from 32 distinct parts.

Its main chip is the ATmega32U4, from the AVR/Arduino family. Other key parts include the USBLC6-2SC6. By type, the board carries 77 relays, 65 diodes, 10 switches, 6 capacitors, 6 resistors and 3 connectors.

From the project

Universally compatible 60% PCB with minimal layout support and USB-C

It also features a fuse and an ESD protection chip to protect the MCU and other parts of the PCB.

Plain60-c, from the project README
From the project README

Main components on the Plain60-c

ATmega32U4USBLC6-2SC6

Plain60-c bill of materials (BOM)

175 components, 32 distinct parts.

QtyPartRefs
1
ATmega32U4
U1
1
USBLC6-2SC6
U2
1
XTAL_GND
X1
1
HRO-TYPE-C-31-M-12
J1
1
ISP
J2
1
ai03_ud
J3
1
Polyfuse
F1
1
B0
H1
1
GND
H3
1
+5v
H4
53
KEYSW
K1, K2, K3, K4, K5, K6, K7, K8 +45
1
KEYSW
K15
6
KEYSW
K16, K29, K61-1, K63-1, K72-1, K74-1
2
KEYSW
K31, K58-1
9
KEYSW
K31-1, K46-1, K61, K62, K63, K71, K72, K73 +1
2
KEYSW
K44, K46
1
KEYSW
K44-1
1
KEYSW
K58
1
KEYSW
K67
1
KEYSW
K67-1
Show 12 more
QtyPartRefs
1
Speaker
LS1
4
Screw
S1, S2, S3, S6
2
Screw
S4, S5
3
Tofu screw
S7, S8, S9
1
SW_PUSH
SW1
65
D
D1, D2, D3, D4, D5, D6, D7, D8 +57
1
1u
C1
4
0.1u
C2, C3, C4, C5
1
4.7u
C6
2
22
R1, R2
2
5.1k
R3, R4
2
10k
R5, R6

Plain60-c design files

The KiCad project lives in the evyd13/plain60-c repository on GitHub; these links point at the commit this page was built from.

Plain60-c: common questions

What microcontroller does the Plain60-c use?

The Plain60-c is built around the ATmega32U4, from the AVR/Arduino family.

How big is the Plain60-c PCB?

The Plain60-c measures 284.7 × 94.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Plain60-c?

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

Where can I download the Plain60-c design files?

From the evyd13/plain60-c repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Plain60-c design in my own project?

Yes, under the terms of its CC-BY-SA-4.0 license, which evyd13 chose for the repository.

Can I test firmware for the Plain60-c 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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