HardLabs

Butterflynet

unit117·butterflynet·hardware/candle/.history/candle.kicad_pcb

Butterflynet PCB layout, top view — open source AVR/Arduino board by unit117

About the Butterflynet PCB

Butterflynet is an open source AVR/Arduino PCB design by unit117, published on GitHub under the MIT license. It is a 4-layer board measuring 30 × 430 mm, with 270 components from 9 distinct parts.

Its main chip is the ATtiny1616-M, from the AVR/Arduino family. Other key parts include the IS31FL3731-QF. By type, the board carries 256 diodes, 8 capacitors, 3 ICs, 2 resistors and 1 switch.

From the project

KiCad Local History Directory =============================

KiCad Local History Directory =============================

This directory contains automatic snapshots of your project files. KiCad periodically saves copies of your work here, allowing you to recover from accidental changes or data loss.

You can browse and restore previous versions through KiCad's File > Local History menu.

To disable this feature: Preferences > Common > Project Backup > Enable automatic backups

Main components on the Butterflynet

ATtiny1616-MIS31FL3731-QF

Butterflynet bill of materials (BOM)

270 components, 9 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATtiny1616-M
U1
2
IS31FL3731-QF
U2, U3
1
PCB_BUTTON
SW1
256
WW_2700K
D1, D2, D3, D4, D5, D6, D7, D8 +248
3
100n
C1, C3, C5
2
4.7u
C2, C4
1
10u
C6
2
1u
C7, C8
2
20k
R1, R2

Butterflynet design files

The KiCad project lives in the unit117/butterflynet repository on GitHub; these links point at the commit this page was built from.

Butterflynet: common questions

What microcontroller does the Butterflynet use?

The Butterflynet is built around the ATtiny1616-M, from the AVR/Arduino family.

How big is the Butterflynet PCB?

The Butterflynet measures 30 × 430 mm, has 4 copper layers and is 3 mm thick.

How many components are on the Butterflynet?

270 components, from 9 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 Butterflynet design files?

From the unit117/butterflynet 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 Butterflynet design in my own project?

Yes, under the terms of its MIT license, which unit117 chose for the repository.

Can I test firmware for the Butterflynet 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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