HardLabs

Small paintbrush

artseyio·thepaintbrush·hardware/v1/small-paintbrush.kicad_pcb

Small paintbrush PCB layout, top view — open source AVR/Arduino board by artseyio
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About the Small paintbrush PCB

Small paintbrush is an open source AVR/Arduino PCB design by artseyio, published on GitHub. It is a 2-layer board measuring 94 × 47 mm, with 19 components from 8 distinct parts.

Its main chip is the ProMicro, from the AVR/Arduino family. By type, the board carries 3 connectors, 3 resistors, 2 switches and 1 IC.

It belongs with the keyboards designs in this gallery.

From the project

Small keyboard designs for folks who cannot use 'traditional' keyboard designs. These designs are focused on running the artsey.io keyboard layout.

This is the initial hardware design of the Paintbrush mini keyboard. This was our first attempt at a hardware design and it's pretty good.

Fortunately we though of some updates and ideas ahead of the initial prototypes being ordered.

This version of the hardware was NEVER actually built or tested. Unless you really want to use this design, we recommend skipping straight to version 2.

Small paintbrush, from the project README
From the project README

Main components on the Small paintbrush

ProMicro

Small paintbrush bill of materials (BOM)

19 components, 8 distinct parts.

QtyPartRefs
1
ProMicro
U1
1
Conn_01x02
J1
2
Conn_01x04
J2, J3
8
SW_Push
KEY1, KEY2, KEY3, KEY4, KEY5, KEY6, KEY7, KEY8
2
SW_Push
PUSH1, PUSH2
2
SW_SPDT
SW1, SW2
2
10k
R1, R3
1
10k
R2

Small paintbrush design files

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

Small paintbrush: common questions

What microcontroller does the Small paintbrush use?

The Small paintbrush is built around the ProMicro, from the AVR/Arduino family.

How big is the Small paintbrush PCB?

The Small paintbrush measures 94 × 47 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Small paintbrush?

19 components, from 8 distinct parts. The full bill of materials is listed on this page.

Where can I download the Small paintbrush design files?

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

Can I use the Small paintbrush design in my own project?

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

Can I test firmware for the Small paintbrush 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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