HardLabs

Best84kb

igagis·best84kb·kicad/mcu_board/mcu_board.kicad_pcb

Best84kb PCB layout, top view — open source AVR/Arduino board by igagis

About the Best84kb PCB

Best84kb is an open source AVR/Arduino PCB design by igagis, published on GitHub under the MIT license. It is a 2-layer board measuring 92 × 54.5 mm, with 43 components from 20 distinct parts.

Its main chip is the ATmega32U4-AU, from the AVR/Arduino family. By type, the board carries 17 diodes, 8 switches, 7 resistors, 5 capacitors, 1 IC and 1 transistor.

It belongs with the keyboards designs in this gallery.

From the project

custom 84 keys keyboard project

install gcc-avr, avr-libc, dfu-programmer, avrdude packages via apt

Main components on the Best84kb

ATmega32U4-AU

Best84kb bill of materials (BOM)

43 components, 20 distinct parts.

QtyPartRefs
1
ATmega32U4-AU
U1
1
BC817, MMBTA42
Q1
1
8MHz
Y1
1
Conn_01x06_Female
J2
1
500mA
F1
6
SW_Push
SW1, SW4, SW5, SW6, SW7, SW8
1
SW_Push
SW2
1
SW_Push
SW3
1
HRO-TYPE-C-31-M-12
USB1
8
LL4148
D1, D2, D3, D4, D11, D12, D15, D17
1
PRTR5V0U2X
D5
8
LED
D6, D7, D8, D9, D10, D13, D14, D16
2
22pF
C1, C2
1
1uF
C3
1
100nF
C4
1
22uF
C5
2
22R
R1, R2
2
10k
R3, R6
2
5.1k
R4, R5
1
10R
R7

Best84kb design files

The KiCad project lives in the igagis/best84kb repository on GitHub; these links point at the commit this page was built from.

Best84kb: common questions

What microcontroller does the Best84kb use?

The Best84kb is built around the ATmega32U4-AU, from the AVR/Arduino family.

How big is the Best84kb PCB?

The Best84kb measures 92 × 54.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Best84kb?

43 components, from 20 distinct parts. The full bill of materials is listed on this page.

Where can I download the Best84kb design files?

From the igagis/best84kb repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Best84kb design in my own project?

Yes, under the terms of its MIT license, which igagis chose for the repository.

Can I test firmware for the Best84kb 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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