HardLabs

Lilac-V1

coolerzanu·Lilac-V1·Hardware/PCB/Prak's keyboard.kicad_pcb

Lilac-V1 PCB layout, top view — open source AVR/Arduino board by coolerzanu

About the Lilac-V1 PCB

Lilac-V1 is an open source AVR/Arduino PCB design by coolerzanu, published on GitHub. It is a 2-layer board measuring 299.9 × 123.9 mm, with 182 components from 6 distinct parts.

Its main chip is the Sparkfun_Pro_Micro, from the AVR/Arduino family. By type, the board carries 118 diodes, 60 switches, 2 ICs and 2 connectors.

It belongs with the keyboards and wearables designs in this gallery.

From the project

60 Key Split Ergonomic Keyboard

A 60-key split ergonomic mechanical keyboard with hot-swappable switches, per-key RGB, and dual rotary encoders. Fully open source.

- Overview - Specifications - Gallery - Hardware - Bill of Materials - Required Tools - PCB - Case and Plate - Schematics and Routing - Firmware and Layout - Build Guide - Support and Contributing - License - Credits

Lilac-V1 is a fully custom split ergonomic keyboard designed from the ground up, including the PCB, case, plate, keycaps, and firmware. It splits 60 keys evenly across two halves so each hand sits at its own natural shoulder width, and adds a…

Lilac-V1, from the project README
From the project README

Main components on the Lilac-V1

Sparkfun_Pro_Micro

Lilac-V1 bill of materials (BOM)

182 components, 6 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
Sparkfun_Pro_Micro
U1, U2
2
AudioPlug4
J1, J2
58
SW_Push_45deg
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +50
2
RotaryEncoder_Switch
SW25, SW55
60
1N4148WT
D1, D2, D3, D4, D5, D6, D7, D8 +52
58
SK6812MINI-E
D61, D62, D63, D64, D65, D66, D67, D68 +50

Lilac-V1 design files

The KiCad project lives in the coolerzanu/Lilac-V1 repository on GitHub; these links point at the commit this page was built from.

Lilac-V1: common questions

What microcontroller does the Lilac-V1 use?

The Lilac-V1 is built around the Sparkfun_Pro_Micro, from the AVR/Arduino family.

How big is the Lilac-V1 PCB?

The Lilac-V1 measures 299.9 × 123.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Lilac-V1?

182 components, from 6 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 Lilac-V1 design files?

From the coolerzanu/Lilac-V1 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 Lilac-V1 design in my own project?

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

Can I test firmware for the Lilac-V1 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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