2 layers57.5 × 78.3 mm
2 layers85 × 55 mm
Credit card Midi piano
Flynsky/Styro_LolaA credit card sized midi keyboard
- Size
- 85 × 55 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 72
- Nets
- 76
- Pads
- 284
- Tracks, vias
- 692, 110
- Pours
- 9
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 2 Jul 2024
- Updated
- 29 May 2025
Overview
Credit card Midi piano is an open-source printed circuit board by Flynsky, from the Flynsky/Styro_Lola repository on GitHub. It is a 2-layer board of 85 × 55 mm with 72 parts on 76 nets, routed with 692 tracks and 110 vias.
It is built around the MEM2085-00-115-00-A, W25Q128JVSIQ and MIC5528-3.3YMT-TR, with the MCP73831T-2ACI/OT-HXY, TS20-42-25-WT-160-SMT-TR and ABM8G-12.000MHZ-4Y-T3 among its other parts. Its parts include 34 capacitors, 20 resistors, 4 ICs, 3 switches and 2 connectors. It belongs with the audio and music boards of this library.
Main components
10
MEM2085-00-115-00-A
-1.15mm MicroSD Card (TF Card) Push-Pull - SD Card / Memory Card Connector ROHSGlobal Connector Technology (GCT)SD Card / Memory Card Connector
W25Q128JVSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 120ms@(32KB) 128Mbit 133MHz 1uA 2.7V~3.6V 20 Years 3ms Power-on reset、Hardware write protection、Software write protection、Write enable latch、Absolute write protection SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASH
MIC5528-3.3YMT-TR
TDFN-6-EP(1.2x1.2)-40℃~+125℃@(Tj) 1 175uVrms 3.3V 5.5V 500mA 70dB@(100Hz) Fixed Positive Under Voltage Lockout、Over Current Protection、Over Temperature Protection、Enable TDFN-6-EP(1.2x1.2) Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSMicrochip TechnologyVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
MCP73831T-2ACI/OT-HXY
SOT-23-5LBattery ManagementHXY MOSFETTS20-42-25-WT-160-SMT-TR
-- Tactile Switch/Push Button Switch ROHSCUITact Switchs,Keypad Switches
ABM8G-12.000MHZ-4Y-T3
SMD3225-4P-10℃~+60℃ 10pF 120Ω 12MHz Crystal Oscillator ±30ppm ±30ppm SMD3225-4P Crystals ROHSAbraconCrystals
APTD2012LCGCK
0805-40℃~+85℃ 2.1V 2mA 40mcd 40° 570nm 574nm 75mW Discrete Diode Water Clear Yellow Green 0805 LED Indication - Discrete ROHSKingbrightLED Indication - Discrete
FM4004-W
DO-214AC-55℃~+175℃ 1 Independent 1A 1V@1A 30A 400V 500nA DO-214AC Diodes - General Purpose ROHSRECTRONDiodes - General Purpose
GSB1C41110SSHR
USB-SMDUSB-SMD New Arrivals ROHSAmphenolUSB ConnectorsSJ2-35853B-SMT-TR
--25℃~+85℃ 12V 1A Brass、Copper alloy Silver - Audio Connectors ROHSCUIAudio Connectors
README
README.md
Parts
72| Qty | Value | Footprint | References |
|---|---|---|---|
| 13 | 2u2 | SamacSys_Parts:CAPC1608X90N | C1, C2, C6, C7, C8, C9, C10, C11, C13, C14, C15, C16, C21 |
| 9 | 0.1u | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C12, C303, C305, C306, C309, C310, C311, C313, C314 |
| 5 | 0.1uF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C3, C5, C18, C20, C302 |
| 5 | 10u | SamacSys_Parts:CAPC1608X50N | C4, C17, C19, C22, C24 |
| 4 | 10k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R15, R16, R17, R18 |
| 3 | TS20-42-25-WT-160-SMT-TR | SamacSys_Parts:TS204225WT160SMTTR | S1, S2, S3 |
| 2 | 15p 5% | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C316, C317 |
| 2 | 27 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R302, R303 |
| 2 | 470 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R313, R314 |
| 2 | MIC5528-3.3YMT-TR | SamacSys_Parts:SON40P120X120X60-7N-D | IC1, IC4 |
| 2 | ToDo | Resistor_SMD:R_0603_1608Metric | R7, R8 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5 |
| 1 | 10k but unessesary | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R301 |
| 1 | 1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R304 |
| 1 | 1k 1% | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R312 |
| 1 | 2kOhm | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4 |
| 1 | 502352-0200 | SamacSys_Parts:5023520200 | PEN_CON1 |
| 1 | 510 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R0 |
| 1 | ABM8G-12.000MHZ-4Y-T3 | SamacSys_Parts:ABM8G | Y301 |
| 1 | APTD2012LCGCK | SamacSys_Parts:LEDC2012X120N | 5sys0 |
| 1 | BC817-25-QVL | SamacSys_Parts:SOT95P230X110-3N | Q1 |
| 1 | Buzzer | SamacSys_Parts:CMT052575SMTTR | BZ1 |
| 1 | FM4004-W | SamacSys_Parts:DIONM5025X231N | D1 |
| 1 | GSB1C41110SSHR | SamacSys_Parts:GSB1C41110SSHR | USB_C301 |
| 1 | MCP73831T-2ACI_OT | SamacSys_Parts:SOT95P270X145-5N | IC2 |
| 1 | MEM2085-00-115-00-A | SamacSys_Parts:MEM20850011500A | J5 |
| 1 | PCM5101APWR | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | IC3 |
| 1 | SC0914_7_ | SamacSys_Parts:QFN40P700X700X90-57N-D | JuC1 |
| 1 | SJ2-35853B-SMT-TR | SamacSys_Parts:SJ235853BSMTTR | J1 |
| 1 | W25Q128JVS | SamacSys_Parts:SOIC127P790X216-8N | FLA301 |
| 1 | no fit | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R311 |
Similar boards
- 4 layers97.3 × 82 mm
BalloonMotherboardV4.1
EggiEl/SpiCy-BEXUS
Cyanobacteria are among the oldest and most efficient photosynthetic organisms on planet Earth. They contribute 25% of the oxygen on Earth today and were crucial in forming our atmosphere in the early stages of Earth's…
256 parts1 - 4 layers26.4 × 49.4 mm
RP2040 Dev
CafeAsh/DevBoards
Development board based on the ATmega32U4 microcontroller, designed for USB-enabled embedded projects, rapid prototyping, and firmware experimentation.
40 parts - 4 layers55 × 73.5 mm
- 2 layers70 × 59.7 mm
MyMachine LED cap
BrnoMarsRover/myMachine-LED-cap
Repository for my Machine LED Cap project, including software, PCBs, and documentation.
58 partsMIT - 2 layers45 × 23.5 mm
- 2 layers125 × 145 mm
MPPT
lhr-solar/Power-Generation-Sunscatter
The current maintainer of this project is Matthew Yu as of 07/16/2023. His email is matthewjkyu@gmail.com.
134 parts - 4 layers68.6 × 53.3 mm
101 PCB
ICRS/101
The all-new open source Robotics 101 course from ICRS. It's specifically designed to be run in hackspaces, after school clubs and university societies.
89 parts10CC-BY-4.0
Questions
How big is the Credit card Midi piano PCB?
It measures 85 × 55 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Credit card Midi piano use?
72 parts, built around the MEM2085-00-115-00-A, W25Q128JVSIQ, MIC5528-3.3YMT-TR and MCP73831T-2ACI/OT-HXY. 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 Credit card Midi piano KiCad files?
From the Flynsky/Styro_Lola repository on GitHub, at the commit this page was made from: the board is Hardware/V1/Credit_card_Midi_piano.kicad_pcb and its schematic Hardware/V1/Audio_out.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Credit card Midi piano design in my own project?
Its repository states no licence, so its author keeps all rights: ask Flynsky before reusing the design.