HardLabs

P30

arij·p30

P30 PCB layout, top view — open source AVR/Arduino board by arij

About the P30 PCB

P30 is an open source AVR/Arduino PCB design by arij, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 223.5 × 54 mm, with 85 components from 17 distinct parts.

Its main chip is the ATMEGA32U2, from the AVR/Arduino family. By type, the board carries 36 switches, 35 diodes, 6 capacitors, 3 resistors, 1 IC and 1 crystal.

It belongs with the keyboards designs in this gallery.

From the project

A 30% keyboard

P30, from the project README
From the project README

Main components on the P30

ATMEGA32U2

P30 bill of materials (BOM)

85 components, 17 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATMEGA32U2
IC1
1
16MHZ
16MHz
Y1
1
USB_MINI_B
J1
1
R_Small
105R1
1
PUSH_BUTTON
S1
34
SW_PUSH
SW1.1, SW1.2, SW1.3, SW2.1, SW2.2, SW2.3, SW3.1, SW3.2 +26
1
SW_PUSH
SW6.3
1
Led_Small
LED1
35
D
D1, D2, D3, D4, D5, D6, D7, D8 +27
1
0.1UF
2.2uF
C1
1
0.1UF
0.1uF
C2
1
1UF
0.1uF
C3
1
22PF
1uF
C4
1
22PF
22pF
C5
1
22pF
C6
2
22R
R1, R2
1
10K
R3

P30 design files

The KiCad project lives in the arij/p30 repository on GitHub; these links point at the commit this page was built from.

P30: common questions

What microcontroller does the P30 use?

The P30 is built around the ATMEGA32U2, from the AVR/Arduino family.

How big is the P30 PCB?

The P30 measures 223.5 × 54 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the P30?

85 components, from 17 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 P30 design files?

From the arij/p30 repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the P30 design in my own project?

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

Can I test firmware for the P30 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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