HardLabs

Offshoots

MiguelDeTrool·Offshoots·hardware/Offshoots.kicad_pcb

Offshoots PCB layout, top view — open source AVR/Arduino board by MiguelDeTrool
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About the Offshoots PCB

Offshoots is an open source AVR/Arduino PCB design by MiguelDeTrool, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 30 × 128.3 mm, with 49 components from 20 distinct parts.

Its main chip is the Arduino_Nano_v3.x, from the AVR/Arduino family. Other key parts include the MCP6002-xP and LM4040LP-5. By type, the board carries 16 resistors, 14 connectors, 6 capacitors, 2 ICs, 2 transistors and 2 switches.

It belongs with the test & measurement designs in this gallery.

From the project

DIY adaptation of Mutable Instruments' Branches

Offshoots is an easy to DIY, Arduino Nano based adaptation of Mutable Instruments' Branches. Heavily inspired by sound-force.nl's Through-Hole Braids and Quinie.nl's NanoGris.

Only functional difference with Branches is Offshoots doesn't "remember" which output is high when leaving latch mode and coming back to it again. It needs a new input to latch to one of the outputs.

Offshoots, from the project README
From the project README

Main components on the Offshoots

MCP6002-xPLM4040LP-5Arduino_Nano_v3.x

Offshoots bill of materials (BOM)

49 components, 20 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MCP6002-xP
U3
1
LM4040LP-5
U4
1
Arduino_Nano_v3.x
A1
2
2N3904
Q1, Q2
8
Jack
J1, J2, J3, J4, J5, J6, J7, J8
1
Conn_02x05_Odd_Even
J9
1
Conn_3
J10
2
Conn_01x10_Male
J11, J13
2
Conn_01x10_Female
J12, J14
2
R_POT
RV1, RV2
2
SW_Push_DPDT
SW1, SW2
2
LED_Dual_2pin
LED1, LED2
2
1N4001
D1, D2
2
10uF
C1, C2
2
100n
C3, C4
2
1n
C5, C6
8
100K
R1, R2, R3, R4, R5, R6, R7, R9
1
5.1k
R10
2
220
R11, R12
5
1K
R31, R32, R33, R34, R35

Offshoots design files

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

Offshoots: common questions

What microcontroller does the Offshoots use?

The Offshoots is built around the Arduino_Nano_v3.x, from the AVR/Arduino family.

How big is the Offshoots PCB?

The Offshoots measures 30 × 128.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Offshoots?

49 components, from 20 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 Offshoots design files?

From the MiguelDeTrool/Offshoots repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Offshoots design in my own project?

Yes, under the terms of its GPL-3.0 license, which MiguelDeTrool chose for the repository.

Can I test firmware for the Offshoots 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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