Hackpiano
About the Hackpiano PCB
Hackpiano is an open source PCB design by Alex-SJuice, published on GitHub. It is a 2-layer board measuring 95.3 × 100 mm, with 27 components from 5 distinct parts.
Other key parts include the MOUDLE-SEEEDUINO-XIAO. By type, the board carries 12 switches, 12 diodes, 1 IC and 1 LED.
It belongs with the keyboards and displays & leds designs in this gallery.
From the project
I've wanted a MIDI keyboard for a while, and I thought this would be a decent substitute (and a fun challenge!).
I've wanted a MIDI keyboard for a while, and I thought this would be a decent substitute (and a fun challenge!).
This is my first ever project I've made from start to finish, with my own design, so It's very exciting!
I'm hoping to use the skills from this project in others, like my WIP 3d camera (shameless plug)
It was difficult to align everything so the traces are nice, especially since I was forced to wire the keys in a 4x3 grid because of the number of pins
Main components on the Hackpiano
Hackpiano bill of materials (BOM)
27 components, 5 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MOUDLE-SEEEDUINO-XIAO | XIAO-Generic-Hybrid-14P-2.54-21X17.8MM | U1 |
| 12 | SW_Push | SW_Cherry_MX_1.00u_PCB | SW3, SW4, SW5, SW7, SW8, SW9, SW11, SW12 +4 |
| 1 | RotaryEncoder_Switch | RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SongSelect1 |
| 1 | Conn_01x04 | SSD1306-0.91-OLED-4pin-128x32 | OLED1 |
| 12 | 1N4148 | D_DO-35_SOD27_P7.62mm_Horizontal | D7, D8, D9, D13, D14, D15, D16, D17 +4 |
Hackpiano design files
The KiCad project lives in the Alex-SJuice/Hack-Piano repository on GitHub; these links point at the commit this page was built from.
Hackpiano: common questions
How big is the Hackpiano PCB?
The Hackpiano measures 95.3 × 100 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Hackpiano?
27 components, from 5 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 Hackpiano design files?
From the Alex-SJuice/Hack-Piano 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 Hackpiano design in my own project?
The repository has no license, so all rights stay with Alex-SJuice. Use it as a reference, and ask the author before reusing the design.
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