HardLabs

Poc

nikital·keyboard·pcb/poc/poc.kicad_pcb

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

About the Poc PCB

Poc is an open source AVR/Arduino PCB design by nikital, published on GitHub. It is a 2-layer board measuring 100 × 100 mm, with 63 components from 27 distinct parts.

Its main chip is the ATmega32U4-AU, from the AVR/Arduino family. Other key parts include the MCP23018_SO. By type, the board carries 15 resistors, 14 diodes, 11 switches, 10 capacitors, 9 connectors and 2 ICs.

It belongs with the keyboards designs in this gallery.

Main components on the Poc

ATmega32U4-AUMCP23018_SO

Poc bill of materials (BOM)

63 components, 27 distinct parts.

QtyPartRefs
1
ATmega32U4-AU
U1
1
MCP23018_SO
U2
1
16MHz
Y1
1
USB_B_Mini
J1
1
Right
J2
1
Left
J3
1
AVR-ISP-6
J4
1
Conn_02x08_Odd_Even
J5
1
Conn_02x08_Odd_Even
J6
2
Conn_01x02
J7, J8
1
Conn_02x02_Odd_Even
J9
1
500mA
F1
1
SW_Push
SW1
8
SW_Push_45deg
SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9
2
SW_Push_45deg
SW10, SW11
3
PRTR5V0U2X
D1, D3, D5
9
D_Small
D2, D6, D7, D8, D9, D11, D12, D13 +1
2
LED_Small
D4, D10
1
CP
C1
2
22p
C2, C3
Show 7 more
QtyPartRefs
1
1u
C4
6
100n
C5, C6, C7, C8, C9, C10
2
22
R1, R2
7
10K
R3, R4, R8, R9, R10, R14, R15
2
470
R5, R13
2
4.7K
R6, R7
2
R_Small
R11, R12

Poc design files

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

Poc: common questions

What microcontroller does the Poc use?

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

How big is the Poc PCB?

The Poc measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Poc?

63 components, from 27 distinct parts. The full bill of materials is listed on this page.

Where can I download the Poc design files?

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

Can I use the Poc design in my own project?

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

Can I test firmware for the Poc 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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