HardLabs

Split mini left

tamago324·split-mini·rev0.13/pcb/split-mini__left.kicad_pcb

Split mini left PCB layout, top view — open source AVR/Arduino board by tamago324
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About the Split mini left PCB

Split mini left is an open source AVR/Arduino PCB design by tamago324, published on GitHub. It is a 2-layer board measuring 94.8 × 81.9 mm, with 37 components from 14 distinct parts.

Its main chip is the ATmega32U4-A, from the AVR/Arduino family. By type, the board carries 18 switches, 7 capacitors, 6 resistors, 2 connectors, 1 IC and 1 crystal.

It belongs with the keyboards designs in this gallery.

From the project

36 key split keyboard

KLE https://kbplate.ai03.com/ でプレートデータを作成 width: 17 height: 17 左右分割キーボード 狭ピッチ キーキャップは専用のものを使う (底面が16mmのやつを使うことにする) 雰囲気で作ったキーキャップ MXのみ 対応 100mmx100mm以下のため、Elecrow で1ドルで発注可能 QMK firmware rev13 のディレクトリのため、nix-shell --run 'sudo make tamago324/splitmini/rev13:tamago324:flash' のようにして書き込み可能

https://github.com/ruiqimao/keyboard-pcb-guide ATmega32u2直付けのキーパッドを作ろう！ ATMega32u4を使う場合の設計メモ\.md ATmega32U4について学んだこと * Using USB Type\-C on hobyist projects – The blog of Tyler Ward \(aka scorpia\)

Main components on the Split mini left

ATmega32U4-A

Split mini left bill of materials (BOM)

37 components, 14 distinct parts.

QtyPartRefs
1
ATmega32U4-A
U1
1
16MHz
Y1
1
USB_C_Receptacle_USB2.0
J1
1
MJ-4PP-9
J2
1
500mA
F1
1
SKRPACE010
RESET1
18
SW_Push
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +10
1
1μF
C1
3
0.1μF
C2, C3, C4
1
10μF
C5
2
22pF
C6, C7
2
5.1k
R1, R2
2
22
R3, R4
2
10k
R5, R6

Split mini left design files

The KiCad project lives in the tamago324/split-mini repository on GitHub; these links point at the commit this page was built from.

Split mini left: common questions

What microcontroller does the Split mini left use?

The Split mini left is built around the ATmega32U4-A, from the AVR/Arduino family.

How big is the Split mini left PCB?

The Split mini left measures 94.8 × 81.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Split mini left?

37 components, from 14 distinct parts. The full bill of materials is listed on this page.

Where can I download the Split mini left design files?

From the tamago324/split-mini repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Split mini left design in my own project?

The repository has no license, so all rights stay with tamago324. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Split mini left 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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