HardLabs

HW-LEEK-001

diva-eng·HW-LEEK-001·hardware/HW-LEEK-001/HW-LEEK-001.kicad_pcb

HW-LEEK-001 PCB layout, top view — open source AVR/Arduino board by diva-eng

About the HW-LEEK-001 PCB

HW-LEEK-001 is an open source AVR/Arduino PCB design by diva-eng, published on GitHub under the MIT license. It is a 2-layer board measuring 73.2 × 96.2 mm, with 20 components from 9 distinct parts.

Its main chip is the ATTINY402-SS, from the AVR/Arduino family. By type, the board carries 7 diodes, 7 resistors, 2 switches, 1 IC, 1 connector and 1 battery holder.

It belongs with the usb & debug tools designs in this gallery.

From the project

Magical Mirai 2026 Concert Swag

A small-form-factor PCB keychain shaped like Hatsune Miku's iconic leek, designed as concert swag for Magical Mirai. Features green LEDs at the tip, white LEDs at the base, and multiple user-selectable lighting patterns driven by an ATtiny402.

- Leek-shaped PCB outline with keychain mounting hole - 5x green LEDs (leek tip) + 2x white LEDs (base) - 4 lighting patterns selectable via tactile button - SPDT slide switch for hard power on/off - CR1220 coin cell powered (~16 hours active runtime) - Fully assembled by JLCPCB (SMT + THT)

Main components on the HW-LEEK-001

ATTINY402-SS

HW-LEEK-001 bill of materials (BOM)

20 components, 9 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATTINY402-SS
ATtiny402-SS
U1
1
CONN_01X03_PIN
Conn_01x03_Pin
J1
1
C969906
Battery_Cell
BT1
1
C128955
~
韩国韩荣
SW3
1
C318884
~
XKB Connection(中国星坤)
SW4
7
LED
D1, D2, D3, D4, D5, D6, D7
1
C1525
C
C1
5
C25104
R
R1, R2, R3, R4, R5
2
C25092
R
R6, R7

HW-LEEK-001 design files

The KiCad project lives in the diva-eng/HW-LEEK-001 repository on GitHub; these links point at the commit this page was built from.

HW-LEEK-001: common questions

What microcontroller does the HW-LEEK-001 use?

The HW-LEEK-001 is built around the ATTINY402-SS, from the AVR/Arduino family.

How big is the HW-LEEK-001 PCB?

The HW-LEEK-001 measures 73.2 × 96.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the HW-LEEK-001?

20 components, from 9 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 HW-LEEK-001 design files?

From the diva-eng/HW-LEEK-001 repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the HW-LEEK-001 design in my own project?

Yes, under the terms of its MIT license, which diva-eng chose for the repository.

Can I test firmware for the HW-LEEK-001 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.

Similar boards