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2 layers160.7 × 86.4 mmStackedDriver rev 2, the printed circuit board in 3D

StackedDriver rev 2

currawong-project/picadae

Project files for the Currawong Picadae piano player mechanism

Full screenGitHub.kicad_pcb
Size
160.7 × 86.4 mm
Copper layers
2
Thickness
1.6 mm
Parts
139
Nets
14
Pads
394
Tracks, vias
860, 66
Pours
1
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
29 May 2025
Updated
19 Jul 2026

Overview

StackedDriver rev 2 is an open-source printed circuit board by currawong-project, from the currawong-project/picadae repository on GitHub. It is a 2-layer board of 160.7 × 86.4 mm with 139 parts on 14 nets, routed with 860 tracks and 66 vias.

It is built around the ATTINY85-20MU, BYV32-200 and IRF610, with the IRL640A among its other parts. Its parts include 33 resistors, 33 diodes, 33 transistors, 11 ICs and 11 switches. It belongs with the robots and motor control boards and the AVR (ATmega, ATtiny) boards of this library.

Main components

4

README

README.md

Currawong Picadae

The Currawong Picadae is a portable piano player unit inspired by PlayerPiano II as created by Gotfried-Willem Raes of the Logos Foundation. This project was a Currawong Project collaboration with Bill Bowen and Chico McMurtrie of Amorphic Robot Works.

CML Picadae hardware and a control files.

  • kicad contains the keyboard and pedal schematics and printed circuit board layout.
  • control contains the keyboard solenoid ATtiny85 firware, controller Arduino firmware and, Python control API and program.

Picadae

Parts

139
QtyValueFootprintReferences
224k7Resistors_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_HorizontalR1, R1, R1, R1, R1, R1, R1, R1, R1, R1, R1, R2, R2, R2, R2, R2 +6
1120Ω SolenoidConnectors_Samtec:SL-102-X-XX_1x02S1, S1, S1, S1, S1, S1, S1, S1, S1, S1, S1
11220Resistor_SMD:R_0805_2012MetricR3, R3, R3, R3, R3, R3, R3, R3, R3, R3, R3
112N3906TO_SOT_Packages_THT:TO-92_Molded_NarrowQ1, Q1, Q1, Q1, Q1, Q1, Q1, Q1, Q1, Q1, Q1
11ATTINY85-20MUHousings_DIP:DIP-8_W7.62mm_Socket_LongPadsU1, U1, U1, U1, U1, U1, U1, U1, U1, U1, U1
11BYV32-200TO_SOT_Packages_THT:TO-220-3_VerticalD1, D1, D1, D1, D1, D1, D1, D1, D1, D1, D1
11IRF610TO_SOT_Packages_THT:TO-220-3_VerticalQ3, Q3, Q3, Q3, Q3, Q3, Q3, Q3, Q3, Q3, Q3
11IRL640TO_SOT_Packages_THT:TO-220-3_VerticalQ2, Q2, Q2, Q2, Q2, Q2, Q2, Q2, Q2, Q2, Q2
11LED1LED_SMD:LED_0805_2012MetricD?, D?, D?, D?, D?, D?, D?, D?, D?, D?, D?
11SF52Diodes_THT:D_DO-201AD_P15.24mm_HorizontalD2, D2, D2, D2, D2, D2, D2, D2, D2, D2, D2
11Z10VDiodes_THT:D_DO-35_SOD27_P12.70mm_HorizontalD3, D3, D3, D3, D3, D3, D3, D3, D3, D3, D3
2100µFCapacitors_THT:CP_Radial_D8.0mm_P3.50mmC1, C2
2CONN_01X01Connectors:1pinJ1, J1
2CONN_1x6Connectors_Samtec:SL-106-X-XX_1x06P1, P1
1.1µFCapacitors_THT:C_Disc_D3.8mm_W2.6mm_P2.50mmC3

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Questions

How big is the StackedDriver rev 2 PCB?

It measures 160.7 × 86.4 mm and has 2 copper layers, 1.6 mm thick.

What parts does the StackedDriver rev 2 use?

139 parts, built around the ATTINY85-20MU, BYV32-200, IRF610 and IRL640A. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the StackedDriver rev 2 KiCad files?

From the currawong-project/picadae repository on GitHub, at the commit this page was made from: the board is kicad/keys/stackedDriver_rev_2.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the StackedDriver rev 2 design in my own project?

Its repository states no licence, so its author keeps all rights: ask currawong-project before reusing the design.