HardLabs

Keyplus mini

ahtn·keyboard_pcb·keyplus_mini/keyplus_mini_v3/keyplus_mini.kicad_pcb

Keyplus mini PCB layout, top view — open source AVR/Arduino board by ahtn

About the Keyplus mini PCB

Keyplus mini is an open source AVR/Arduino PCB design by ahtn, published on GitHub. It is a 2-layer board measuring 24 × 23 mm, with 20 components from 12 distinct parts.

Its main chip is the ATXMEGA32A4U-MH, from the AVR/Arduino family. Other key parts include the MCP1700T3302ETT. By type, the board carries 7 resistors, 6 capacitors, 4 connectors, 2 ICs and 1 diode.

It belongs with the keyboards designs in this gallery.

Keyplus mini, from the project README
From the project README

Main components on the Keyplus mini

MCP1700T3302ETTATXMEGA32A4U-MH

Keyplus mini bill of materials (BOM)

20 components, 12 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MCP1700T3302ETT
MCP1700-3302E_SOT23
U1
1
ATXMEGA32A4U-MH
ATXMEGA-A4U-EPAD
U2
1
H125292
USB_C_Receptacle
J1
2
Conn_02x09_Odd_Even
J2, J4
1
CONN_01X01
J3
1
BAT54C-FDI
D_Schottky_x2_KCom_AAK
D1
1
1UF
1uF
C1
1
10UF
10uF
C2
4
0.1UF
0.1uF
C3, C4, C5, C6
2
5.1K
5.1k
R1, R2
3
10K
10k
R3, R4, R5
2
100K
100k
R6, R7

Keyplus mini design files

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

Keyplus mini: common questions

What microcontroller does the Keyplus mini use?

The Keyplus mini is built around the ATXMEGA32A4U-MH, from the AVR/Arduino family.

How big is the Keyplus mini PCB?

The Keyplus mini measures 24 × 23 mm, has 2 copper layers and is 0.8 mm thick.

How many components are on the Keyplus mini?

20 components, from 12 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Keyplus mini design files?

From the ahtn/keyboard_pcb repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Keyplus mini design in my own project?

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

Can I test firmware for the Keyplus mini 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.

More boards in keyboard_pcb

Similar boards