HardLabs

A2b

spikekips·a2b·a2b_u/a2b.kicad_pcb

A2b PCB layout, top view — open source board by spikekips

About the A2b PCB

A2b is an open source PCB design by spikekips, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 58.4 × 66.7 mm, with 16 components from 9 distinct parts.

By type, the board carries 3 switches, 2 diodes and 1 resistor.

It belongs with the audio designs in this gallery.

From the project

a board that takes 1/4" audio jacks and 9V DC and outputs it for a bread board

A convenient open-source hardware interface board for integrating 1/4" audio and 9V DC power with breadboard projects.

The a2b project provides an open-source hardware solution for seamlessly integrating common audio and power sources directly into your breadboard experiments. This board is designed to take standard 1/4" audio input jacks and a 9V DC power input, breaking them out into breadboard-friendly header pins.

A2b, from the project README
From the project README

A2b bill of materials (BOM)

16 components, 9 distinct parts.

QtyPartRefs
2
NMJ6HCD2
AUDIO_1, AUDIO_2
1
RAPC722X
DC_IN1
4
~
PINOUT1, PINOUT2, PINOUT3, PINOUT4
2
SW_DIP_x03
SW1, SW2
1
SW_DIP_x02
SW3
1
~
V1
2
~
V2, V3
2
LED
D1, D2
1
1k
R1

A2b design files

The KiCad project lives in the spikekips/a2b repository on GitHub; these links point at the commit this page was built from.

A2b: common questions

How big is the A2b PCB?

The A2b measures 58.4 × 66.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the A2b?

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

Where can I download the A2b design files?

From the spikekips/a2b repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the A2b design in my own project?

Yes, under the terms of its CERN-OHL-S-2.0 license, which spikekips chose for the repository.

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