HardLabs

P65

arij·p65

P65 PCB layout, top view — open source AVR/Arduino board by arij

About the P65 PCB

P65 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 299.6 × 101.3 mm, with 248 components from 29 distinct parts.

Its main chip is the ATmega32U4-AU, from the AVR/Arduino family. By type, the board carries 82 LEDs, 69 diodes, 16 capacitors, 3 resistors, 2 connectors and 1 IC.

It belongs with the keyboards designs in this gallery.

From the project

Pendulum 65

Main components on the P65

ATmega32U4-AU

P65 bill of materials (BOM)

248 components, 29 distinct parts.

QtyPartRefs
1
ATmega32U4-AU
U1
1
16MHz
Y1
1
USB_B
P1
1
p65nameplate
P65NP
1
R1LED
REF16
1
R2LED
REF17
68
RESISTOR_SMALL
REF18, REF19, REF20, REF21, REF22, REF23, REF24, REF25 +60
1
MOSFET_P
REF118
1
330R
REF151
1
10K
REF999
1
PUSH_BUTTON
SW1
10
RGBLED_WS2812B
LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8 +2
57
1U
REF1, REF2, REF3, REF4, REF5, REF6, REF7, REF8 +49
1
2U
REF14
4
1.5U
REF31, REF44, REF123, REF125
2
1.75U
REF61, REF100
2
2.25U
REF73, REF89
3
1.25U
REF119, REF120, REF121
1
6.25U
REF122
2
KEYBOARD_SWITCH_PLUS_LED
REF142, REF152
Show 9 more
QtyPartRefs
68
D
D1, D2, D3, D4, D5, D6, D7, D8 +60
1
D_Small
D70
2
22pF
C1, C2
1
2.2uF
C3
2
0.1uF
C4, C5
1
1uF
C6
10
CAPACITOR
C7, C8, C9, C10, C11, C12, C13, C14 +2
1
10K
R1
2
22R
R2, R3

P65 design files

The KiCad project lives in the arij/p65 repository on GitHub; these links point at the commit this page was built from.

P65: common questions

What microcontroller does the P65 use?

The P65 is built around the ATmega32U4-AU, from the AVR/Arduino family.

How big is the P65 PCB?

The P65 measures 299.6 × 101.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the P65?

248 components, from 29 distinct parts. The full bill of materials is listed on this page.

Where can I download the P65 design files?

From the arij/p65 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the P65 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 P65 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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