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Lergo modular

AxelVoitier·keebs·Lergo/PCB/Lergo.kicad_pcb

Lergo modular PCB layout, top view — open source AVR/Arduino board by AxelVoitier
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About the Lergo modular PCB

Lergo modular is an open source AVR/Arduino PCB design by AxelVoitier, published on GitHub. It is a 2-layer board measuring 96.3 × 96 mm, with 72 components from 19 distinct parts.

Its main chip is the ProMicro, from the AVR/Arduino family. By type, the board carries 22 switches, 6 diodes, 5 connectors, 5 resistors, 4 LEDs and 4 capacitors.

It belongs with the keyboards designs in this gallery.

From the project

Axel's keebs

Lergo modular, from the project README
From the project README

Main components on the Lergo modular

ProMicro

Lergo modular bill of materials (BOM)

72 components, 19 distinct parts.

QtyPartRefs
1
ProMicro
U1
2
MJ-4PP-9
J1, J6
1
Conn_01x03
J2
2
Conn_01x08
J3, J4
6
MountingHole_Pad
H6, H101, H102, H135, H138, H170
9
MountingHole_Pad
H57, H152, H155, H156, H159, H160, H163, H164 +1
10
MountingHole_Pad
H153, H154, H157, H158, H161, H162, H165, H166 +2
17
SW_PUSH_LED
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +9
1
SW_PUSH_LED
SW18
1
Rotary_Encoder_Switch
SW19
1
Rotary_Encoder_Switch
SW20
1
SW_Push
SW22
1
5way_switch
SW24
4
LED_SK6812_Mini_E
LED1, LED2, LED3, LED4
5
D_Small
D1, D2, D3, D4, D5
1
D
D18
4
100n
C19, C20, C21, C22
1
510R
R101
4
4k7
R102, R103, R104, R105

Lergo modular design files

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

Lergo modular: common questions

What microcontroller does the Lergo modular use?

The Lergo modular is built around the ProMicro, from the AVR/Arduino family.

How big is the Lergo modular PCB?

The Lergo modular measures 96.3 × 96 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Lergo modular?

72 components, from 19 distinct parts. The full bill of materials is listed on this page.

Where can I download the Lergo modular design files?

From the AxelVoitier/keebs repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Lergo modular design in my own project?

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

Can I test firmware for the Lergo modular 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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