HardLabs

SL40

worldspawn00·SL40

SL40 PCB layout, top view — open source AVR/Arduino board by worldspawn00

About the SL40 PCB

SL40 is an open source AVR/Arduino PCB design by worldspawn00, published on GitHub under the MIT license. It is a 2-layer board measuring 266.7 × 76.2 mm, with 98 components from 7 distinct parts.

Its main chip is the Arduino Pro Micro, from the AVR/Arduino family. By type, the board carries 48 LEDs, 48 diodes, 1 IC and 1 switch.

Main components on the SL40

Arduino Pro Micro

SL40 bill of materials (BOM)

98 components, 7 distinct parts.

QtyPartRefs
1
Arduino Pro Micro
U1
1
SW_Push
SW1
40
MX-1U
MX1, MX2, MX3, MX4, MX5, MX6, MX7, MX8 +32
5
MX-1.25U
MX15, MX38, MX41, MX42, MX43
2
MX-1.75U
MX27, MX28
1
MX-6.25U
MX44
48
D_small
D1, D2, D3, D4, D5, D6, D7, D8 +40

SL40 design files

The KiCad project lives in the worldspawn00/SL40 repository on GitHub; these links point at the commit this page was built from.

SL40: common questions

What microcontroller does the SL40 use?

The SL40 is built around the Arduino Pro Micro, from the AVR/Arduino family.

How big is the SL40 PCB?

The SL40 measures 266.7 × 76.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the SL40?

98 components, from 7 distinct parts. The full bill of materials is listed on this page.

Where can I download the SL40 design files?

From the worldspawn00/SL40 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the SL40 design in my own project?

Yes, under the terms of its MIT license, which worldspawn00 chose for the repository.

Can I test firmware for the SL40 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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