Piano solenoid controller
About the Piano solenoid controller PCB
Piano solenoid controller is an open source RP2040/RP2350 PCB design by CRImier, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 122.5 × 100 mm, with 179 components from 47 distinct parts.
Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the SL2.1A, AP1117-33, W25Q32JVSS, 74HC595 and PC817. By type, the board carries 106 resistors, 26 diodes, 16 transistors, 14 connectors, 10 ICs and 7 capacitors.
It belongs with the dev boards & breakouts designs in this gallery.
From the project
My KiCad boards. Can't be bothered uploading individually anymore, so here you go.
This is a repository where I upload [almost] everything that I design in KiCad. As usual, if you think your work warrants doing backups, just upload it to a git repo ;-P I hope this will be useful.
About 50% of all of the PCBs have a README describing what they're meant for and the PCBs physical parameters, the README follows the TEMPLATE.md standard. I'll be adding more READMEs as I go.
Main components on the Piano solenoid controller
Piano solenoid controller bill of materials (BOM)
179 components, 47 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SL2.1A 74HC595 | SOIC-16_4.55x10.3mm_P1.27mm | U1 |
| 1 | AP1117-33 74AHC1G125 | SOT-353_SC-70-5_Handsoldering | U2 |
| 1 | W25Q32JVSS PC817 | DIP-4_W7.62mm | U3 |
| 1 | RP2040 PC817 | DIP-4_W7.62mm | U4 |
| 1 | 74HC595 PC817 | DIP-4_W7.62mm | U5 |
| 5 | PC817 | DIP-4_W7.62mm | U6, U7, U8, U9, U10 |
| 1 | BC817 BC857 | SOT-23_Handsoldering | Q1 |
| 1 | CJ2305 BC857 | SOT-23_Handsoldering | Q2 |
| 6 | BC857 | SOT-23_Handsoldering | Q3, Q4, Q5, Q6, Q7, Q8 |
| 8 | Q_NMOS_GDS | TO-220-3_Vertical | Q9, Q10, Q11, Q12, Q13, Q14, Q15, Q16 |
| 1 | DIN | RJ45_Amphenol_RJHSE5380 | J1 |
| 1 | USB_C_RECEPTACLE_USB2.0 DOUT | RJ45_Amphenol_RJHSE5380 | J2 |
| 1 | VCC_I | PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | VCC_O | PinHeader_1x02_P2.54mm_Vertical | J4 |
| 1 | VDD_I | PhoenixContact_MC_1,5_2-G-3.81_1x02_P3.81mm_Horizontal | J5 |
| 1 | VDD_O | PhoenixContact_MC_1,5_2-G-3.81_1x02_P3.81mm_Horizontal | J6 |
| 1 | OC0 | PhoenixContact_MC_1,5_2-G-3.81_1x02_P3.81mm_Horizontal | J7 |
| 1 | OC1 | PhoenixContact_MC_1,5_2-G-3.81_1x02_P3.81mm_Horizontal | J8 |
| 1 | OC2 | PhoenixContact_MC_1,5_2-G-3.81_1x02_P3.81mm_Horizontal | J9 |
| 1 | OC3 | PhoenixContact_MC_1,5_2-G-3.81_1x02_P3.81mm_Horizontal | J10 |
Show 27 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | OC4 | PhoenixContact_MC_1,5_2-G-3.81_1x02_P3.81mm_Horizontal | J11 |
| 1 | OC5 | PhoenixContact_MC_1,5_2-G-3.81_1x02_P3.81mm_Horizontal | J12 |
| 1 | OC6 | PhoenixContact_MC_1,5_2-G-3.81_1x02_P3.81mm_Horizontal | J13 |
| 1 | OC7 | PhoenixContact_MC_1,5_2-G-3.81_1x02_P3.81mm_Horizontal | J14 |
| 10 | LED | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1, D2, D19, D20, D21, D22, D23, D24 +2 |
| 1 | 1N4148 | D_DO-35_SOD27_P7.62mm_Horizontal | D3 |
| 7 | 1N4148 | D_DO-34_SOD68_P7.62mm_Horizontal | D4, D5, D6, D7, D8, D9, D10 |
| 8 | 1N4007 | D_SMC-RM10_Universal_Handsoldering | D11, D12, D13, D14, D15, D16, D17, D18 |
| 5 | 100NF 100n | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C1, C3, C4, C6, C7 |
| 2 | 100NF 10u | CP_Radial_D10.0mm_P2.50mm_P5.00mm | C2, C5 |
| 3 | 5K1 47R | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R1, R19, R31 |
| 1 | C17477 10K | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R2 |
| 1 | 5K1 10K | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R3 |
| 6 | C21189 47R | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R4, R7, R8, R9, R11, R23 |
| 1 | C21189 10K | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R5 |
| 1 | C21189 1K | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R6 |
| 1 | C21189 NC | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R10 |
| 29 | NC | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R12, R14, R16, R18, R20, R24, R26, R32 +21 |
| 1 | C17477 1K | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R13 |
| 12 | 47R | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R15, R27, R35, R39, R83, R84, R85, R86 +4 |
| 21 | 1K | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R17, R25, R33, R37, R41, R60, R61, R63 +13 |
| 1 | 5K1 1K | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R21 |
| 1 | 5K1 NC | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R22 |
| 1 | 22R NC | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R28 |
| 1 | 22R 1K | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R29 |
| 1 | C1011 NC | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R30 |
| 24 | 10K | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R59, R62, R65, R68, R71, R74, R77, R80 +16 |
Piano solenoid controller design files
The KiCad project lives in the CRImier/MyKiCad repository on GitHub; these links point at the commit this page was built from.
Piano solenoid controller: common questions
What microcontroller does the Piano solenoid controller use?
The Piano solenoid controller is built around the RP2040, from the RP2040/RP2350 family.
How big is the Piano solenoid controller PCB?
The Piano solenoid controller measures 122.5 × 100 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Piano solenoid controller?
179 components, from 47 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 Piano solenoid controller design files?
From the CRImier/MyKiCad repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Piano solenoid controller design in my own project?
Yes, under the terms of its GPL-3.0 license, which CRImier chose for the repository.
Can I test firmware for the Piano solenoid controller without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.
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