HardLabs

P4vert

keyaki-namiki·universal16·p4vert/PCB/v0.3c/p4vert.kicad_pcb

P4vert PCB layout, top view — open source AVR/Arduino board by keyaki-namiki

About the P4vert PCB

P4vert is an open source AVR/Arduino PCB design by keyaki-namiki, published on GitHub under the MIT license. It is a 2-layer board measuring 99.5 × 99.5 mm, with 65 components from 16 distinct parts.

Its main chip is the ATmega32U4-AU, from the AVR/Arduino family. By type, the board carries 24 switches, 23 diodes, 8 resistors, 7 capacitors, 1 IC and 1 crystal.

From the project

4x4 simple Key-matrix with universal board.

4x4 simple Key-matrix (and some functions) with universal board

- No wire is there between matrix(es) and controller footprint (for trying new controller such as Arduino, Mbed, PIC,and so on...) - Matrix circuit is been dragged out to pads for hand-wiring - Jumper pads for making 'hand-wiring' easier - The universal board part for making your function (rotary encoder, potentiometer, joystick module, etc...) - You can use universal board part in both left-side and right-side

P4vert, from the project README
From the project README

Main components on the P4vert

ATmega32U4-AU

P4vert bill of materials (BOM)

65 components, 16 distinct parts.

QtyPartRefs
1
ATmega32U4-AU
U1
1
16MHz
Y1
1
Conn_02x03_Odd_Even
J12
20
SW_Push
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +12
3
SW_Push
SW9_alt1, SW17_alt1, SW20_alt1
1
Reset
SW21
20
D
D1, D2, D3, D4, D5, D6, D7, D8 +12
1
D_Schottky
D21
2
LED
D22, D23
3
1uF
C1, C2, C7
2
0.1uF
C3, C4
2
22pF
C5, C6
2
22
R1, R2
2
1k
R3, R4
2
R
R5, R6
2
10k
R7, R8

P4vert design files

The KiCad project lives in the keyaki-namiki/universal16 repository on GitHub; these links point at the commit this page was built from.

P4vert: common questions

What microcontroller does the P4vert use?

The P4vert is built around the ATmega32U4-AU, from the AVR/Arduino family.

How big is the P4vert PCB?

The P4vert measures 99.5 × 99.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the P4vert?

65 components, from 16 distinct parts. The full bill of materials is listed on this page.

Where can I download the P4vert design files?

From the keyaki-namiki/universal16 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the P4vert design in my own project?

Yes, under the terms of its MIT license, which keyaki-namiki chose for the repository.

Can I test firmware for the P4vert 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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