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Hps07

gzweigle·open-hybrid-piano·hardware/releases/hps07/hps07_kicad_v1/hps07.kicad_pcb

Hps07 PCB layout, top view — open source board by gzweigle
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About the Hps07 PCB

Hps07 is an open source PCB design by gzweigle, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 38.1 × 10.2 mm, with 5 components from 4 distinct parts.

Other key parts include the CNY70. By type, the board carries 2 resistors, 1 IC and 1 connector.

It belongs with the audio designs in this gallery.

From the project

Building a hybrid MIDI digital piano

Originally, the HPS PCB was for hammers. However, the sensor also works for dampers. Not changing the name because many circuit boards have already been built.

Version 0.7 is the same as version 0.6 except with a different header pin order. This provides a better physical match to some mainboards.

This circuit board includes a trimming resistor. Unless needed for a specific use case, the circuit board with trimming resistor is not recommended.

Main components on the Hps07

CNY70

Hps07 bill of materials (BOM)

5 components, 4 distinct parts.

QtyPartRefs
1
CNY70
U1
1
Conn_01x03_Pin
J1
1
R_Potentiometer_Trim
RV0
2
Resistor
R1, R2

Hps07 design files

The KiCad project lives in the gzweigle/open-hybrid-piano repository on GitHub; these links point at the commit this page was built from.

Hps07: common questions

How big is the Hps07 PCB?

The Hps07 measures 38.1 × 10.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Hps07?

5 components, from 4 distinct parts. The full bill of materials is listed on this page.

Where can I download the Hps07 design files?

From the gzweigle/open-hybrid-piano repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Hps07 design in my own project?

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

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