HardLabs

Catws

kliment·catws

Catws PCB layout, top view — open source AVR/Arduino board by kliment
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About the Catws PCB

Catws is an open source AVR/Arduino PCB design by kliment, published on GitHub. It is a 2-layer board measuring 50 × 50 mm, with 15 components from 9 distinct parts.

Its main chip is the ATTINY88-MU, from the AVR/Arduino family. Other key parts include the BRCC064GWZ-3. By type, the board carries 6 diodes, 3 capacitors, 2 ICs, 2 resistors, 1 battery holder and 1 speaker.

From the project

The design, layout and firmware for the purring kitten smd assembly workshop

Main components on the Catws

ATTINY88-MUBRCC064GWZ-3

Catws bill of materials (BOM)

15 components, 9 distinct parts.

QtyPartRefs
1
ATTINY88-MU
U1
1
BRCC064GWZ-3
U2
1
Battery_Cell
BT1
1
Speaker_Crystal
LS1
5
LED
D1, D2, D3, D4, D5
1
LED_ARGB
D6
2
C
C1, C2
1
C
C3
2
R_Pack04
RN1, RN2

Catws design files

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

Catws: common questions

What microcontroller does the Catws use?

The Catws is built around the ATTINY88-MU, from the AVR/Arduino family.

How big is the Catws PCB?

The Catws measures 50 × 50 mm, has 2 copper layers and is 1.2 mm thick.

How many components are on the Catws?

15 components, from 9 distinct parts. The full bill of materials is listed on this page.

Where can I download the Catws design files?

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

Can I use the Catws design in my own project?

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

Can I test firmware for the Catws 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.

Earlier revisions in the repo: catws-r2, catws

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