HardLabs

Single key keyboard

AeroX2·single-key-keyboard·pcb/single-key-keyboard.kicad_pcb

Single key keyboard PCB layout, top view — open source AVR/Arduino board by AeroX2

About the Single key keyboard PCB

Single key keyboard is an open source AVR/Arduino PCB design by AeroX2, published on GitHub. It is a 2-layer board measuring 25.4 × 52.9 mm, with 25 components from 17 distinct parts.

Its main chip is the ATtiny416-M, from the AVR/Arduino family. By type, the board carries 9 resistors, 5 diodes, 4 test points, 2 connectors, 2 switches and 1 IC.

It belongs with the keyboards designs in this gallery.

Main components on the Single key keyboard

ATtiny416-M

Single key keyboard bill of materials (BOM)

25 components, 17 distinct parts.

QtyPartRefs
1
ATtiny416-M
U1
1
Conn_01x05
J2
1
USB_C_Plug_USB2.0
P1
1
MountingHole
H2
1
SW_Push
SW1
1
SW_SPST
SW2
4
TestPoint
TP1, TP2, TP3, TP6
3
LESD5D5.0CT1G
D1, D3, D4
1
D_Schottky
D2
1
LESD5D5.0CT1G
LED
D5
1
100n
C1
2
5.1k
R1, R2
2
1k
R3, R4
1
4.7k
R5
1
500
R6
1
1.5k
R7
2
68
R8, R9

Single key keyboard design files

The KiCad project lives in the AeroX2/single-key-keyboard repository on GitHub; these links point at the commit this page was built from.

Single key keyboard: common questions

What microcontroller does the Single key keyboard use?

The Single key keyboard is built around the ATtiny416-M, from the AVR/Arduino family.

How big is the Single key keyboard PCB?

The Single key keyboard measures 25.4 × 52.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Single key keyboard?

25 components, from 17 distinct parts. The full bill of materials is listed on this page.

Where can I download the Single key keyboard design files?

From the AeroX2/single-key-keyboard repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Single key keyboard design in my own project?

The repository has no license, so all rights stay with AeroX2. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Single key keyboard 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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