Picadae hardware and control code

Bill of materials

Keyboard Power and Control

These parts serve the entire keyboard solenoid assembly.

Id	Type	Description	Qty	Source	Part Number
J3	6P Terminal	Screw Terminal	2	Mouser	651-1725698
P1	HDS800PS24	24V Power Supply	1	Digikey	1470-2689-ND
P2	HDS800PS12	12V Power Supply	1	Digikey	1470-2687-ND
P3	TXL 015-05S	5V Power Supply	1	Digikey	1951-1325-ND
M0	Controller MCU	Arduino Uno R3	1	Digikey	1050-1024-ND
None	1/16 x 1/8 x ½	Rubber feet(pkg 100)	1	McMaster	9753K11

Key Driver Board (11 channels per board)

There are 8 driver boards per keyboard solenoid assembly. Each board has 11 driver circuits.

Id	Type	Description	Qty	Source	Part Number
U1	ATtiny85-20MU	Microcontroller	11	Mouser	556-ATTINY85-20PU
None	8DIP IC	Socket	11	Mouser	571-1-2199298-2
None	0.1uF	Capacitor	1	Digikey	399-14010-1-ND
R1-2	4.7k	Resistor	22	Mouser	293-4.7K-RC
D1	BYV32-200	Diode	11	Mouser	BYV32-200GOS-ND
D2	SF52	Rectifier	11	Mouser	583-SF52-B
D4	Z10Y	Diode	11	Mouser	78-BZX55C10-TAP
Q1	2N3906	BJT	11	Mouser	512-2N3906BU
Q2	IRL640	MOSFET	11	Mouser	512-IRL640A
Q3	IRF610	MOSFET	11	Mouser	844-IRF610PBF
S1	Solenoid	Ledex 195207-228	11	Testco	195207-228
C1	100uF	Capacitor	2	Digikey	493-1668-ND
J1	2P Terminal	Screw Terminal	11	Mouser	651-1725656
J2	6P Female .1	Pin Terminal	1	Digikey	H123900-ND

Damper Pedal Driver Board

Id	Type	Description	Qty	Source	Part Number
R1-4	180 ohm	Resistor	4	Mouser	660-MF1/2LCT52R181G
R5-6	470 ohm	Resistor	2	Mouser	71-CCF07470RGKE36
C1-2	1uF	Capacitor	2	Newark	65R3171
C3-4	4700uF	Capacitor	2	Newark	GBPC2501W
Q1-2	BS170	MOSFET	2	Mouser	512-BS170
Q3-4	IRF1310NPBF	MOSFET	2	Mouser	942-IRF1310NPBF
U1	TLP523	Dual Opto-isolator	1	Newark	05M1443
U2-3	LM7810ACT	10V Voltage Regulato	2	Mouser	512-KA7810ETU
D1	Bridge Rectifier	100V 25A	1	Newark	GBPC2501W
D2-3	STTH30R061PI	Diode	1	Mouser	512-RURP3060
L1	Push Solenoid	24 Volt	1	Laukhuff	301010
T1	Transformer		1	Digikey	595-1961-ND