HardLabs

SAX 2

tomcombriat·TES_e-sax·hardware/v2d2/SAX_2.kicad_pcb

SAX 2 PCB layout, top view — open source board by tomcombriat

About the SAX 2 PCB

SAX 2 is an open source PCB design by tomcombriat, published on GitHub under the TAPR-OHL-1.0 license. It is a 2-layer board measuring 54.8 × 85.6 mm, with 34 components from 8 distinct parts.

Other key parts include the 74HC165 and BluePill_STM32F103C. By type, the board carries 28 resistors, 4 ICs and 2 connectors.

It belongs with the audio and sensors designs in this gallery.

From the project

This is the program and hardware for the TES e-sax

More infos: https://t-e-s.frama.site/en/tesaxophone

The E-sax is an EWI made out of a real sax. It outputs MIDI signals that can be used to generate sounds using a synthesizer for instance the 10k synth. It is design to provide saxophone players a digital instrument to which they can transition easily. Additionnaly from the "standard" behavior it also have features that are allowed by a digital instrument:

Main components on the SAX 2

74HC165BluePill_STM32F103C

SAX 2 bill of materials (BOM)

34 components, 8 distinct parts.

QtyPartRefs
3
74HC165
U1, U2, U3
1
BluePill_STM32F103C
U4
1
Prog port
J1
1
(GND) SSD1306
J2
24
10k
R1, R2, R3, R4, R5, R6, R7, R8 +16
1
10
R25
1
33
R26
2
22k
R27, R28

SAX 2 design files

The KiCad project lives in the tomcombriat/TES_e-sax repository on GitHub; these links point at the commit this page was built from.

SAX 2: common questions

How big is the SAX 2 PCB?

The SAX 2 measures 54.8 × 85.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the SAX 2?

34 components, from 8 distinct parts. The full bill of materials is listed on this page.

Where can I download the SAX 2 design files?

From the tomcombriat/TES_e-sax repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the SAX 2 design in my own project?

Yes, under the terms of its TAPR-OHL-1.0 license, which tomcombriat chose for the repository.

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