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Haxo hw

cardonabits·haxo-hw

Haxo hw PCB layout, top view — open source Raspberry Pi board by cardonabits
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About the Haxo hw PCB

Haxo hw is an open source Raspberry Pi PCB design by cardonabits, published on GitHub under the Custom license license. It is a 2-layer board measuring 102.4 × 211.3 mm, with 38 components from 14 distinct parts.

Its main chip is the RASPBERRY_PI_2_3, from the Raspberry Pi family. Other key parts include the MPXV7007DP, MCP3221 and MAX98357. By type, the board carries 22 diodes, 5 resistors, 4 capacitors, 3 ICs, 3 connectors and 1 inductor.

It belongs with the audio, test & measurement and keyboards designs in this gallery.

From the project

Haxophone, an electronic musical instrument that resembles a saxophone

- What is a haxophone - Project Goals Goals Non-Goals - How does it work? - Mechanical Design - Electrical Design Keyboard Audio Amplifier * Pinout - Tools/Stack - Software - Manufacturing - Bill of Materials - Assembly Instructions - TODO list - License and Contributions - Acknowledgements

A haxophone is an electronic musical instrument that resembles a saxophone. It is designed to be an inexpensive and fully customizable travel saxophone. You will never get the same expressiveness or depth of sound of a real saxophone. But with a haxophone you should be able to play alone or with friends…

Haxo hw, from the project README
From the project README

Main components on the Haxo hw

MPXV7007DPMCP3221MAX98357

Haxo hw bill of materials (BOM)

38 components, 14 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MPXV7007DP
U1
1
MCP3221
U2
1
MAX98357
U4
1
RASPBERRY_PI_2_3
Raspberry_Pi_2_3
J3
1
CONN_01X03_MALE
Conn_01x03_Male
J4
1
C18594
Line Out
J5
22
C8598
D_Small
D1, D2, D3, D4, D5, D6, D7, D8 +14
1
600
FB1
1
470PF
470pF
C1
1
0.1UF
0.1uF
C2
1
10UF
10uF
C3
1
220PF
220pF
C4
2
4.7K
R1, R2
3
0805W8F1002T5E
10K
R3, R4, R5

Haxo hw design files

The KiCad project lives in the cardonabits/haxo-hw repository on GitHub; these links point at the commit this page was built from.

Haxo hw: common questions

What microcontroller does the Haxo hw use?

The Haxo hw is built around the RASPBERRY_PI_2_3, from the Raspberry Pi family.

How big is the Haxo hw PCB?

The Haxo hw measures 102.4 × 211.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Haxo hw?

38 components, from 14 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 Haxo hw design files?

From the cardonabits/haxo-hw 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 Haxo hw design in my own project?

It is published under Custom license, which limits how it may be reused; read the license before building on it.

Can I test firmware for the Haxo hw without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Raspberry Pi firmware against it before you order a PCB.

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