2 layers93.5 × 100 mm
CombinedKS61Prototype
radionerd/VirtualPipeOrgan
Virtual Pipe Organ Schematics, PCBs, MidiFirmware, Console Drawings, Expression Pedal Drawings
125 parts
2 layers223.6 × 91.4 mm
MidiInterface
radionerd/VirtualPipeOrganVirtual Pipe Organ Schematics, PCBs, MidiFirmware, Console Drawings, Expression Pedal Drawings
- Size
- 223.6 × 91.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 246
- Nets
- 157
- Pads
- 784
- Tracks, vias
- 1,020, 9
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 24 Aug 2023
- Updated
- 31 Oct 2026
Overview
MidiInterface is an open-source printed circuit board by radionerd, from the radionerd/VirtualPipeOrgan repository on GitHub. It is a 2-layer board of 223.6 × 91.4 mm with 246 parts on 157 nets, routed with 1,020 tracks and 9 vias.
It is built around the 74HC164 and AO3400A. Its parts include 20 resistors, 16 diodes, 12 connectors, 8 switches and 2 capacitors.
Main components
2Parts
246| Qty | Value | Footprint | References |
|---|---|---|---|
| 122 | 4k7 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | RD1, RD2, RD10, RD11, RD12, RD13, RD14, RD15, RD16, RD17, RD18, RD19, RD20, RD21, RD22, RD23 +106 |
| 18 | 270 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R3, R4, R5, R6, R7, R10, R11, R12, R13, R14, R15, R16, R17, R18 +2 |
| 16 | 1N4148 | Diode_SMD:D_SOD-123 | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15, D16 |
| 16 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H11, H12, H13, H14, H21, H22, H23, H24, H31, H32, H33, H34, H41, H42, H43, H44 |
| 10 | 4k7* | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | RU14, RU15, RU18, RU19, RU32, RU48, RU49, RU54, RU55, RU68 |
| 8 | SW_TACT_LED | New_Library_fp:TS12_TS27 | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 |
| 7 | MountingHole | MountingHole:MountingHole_2.7mm_M2.5 | H1, H2, H3, H4, H5, H6, H7 |
| 5 | Conn_01x04_Male | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | JJ1, JJ2, JJ3, LCD1, LCD2 |
| 4 | Conn_01x05_Male | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | _Buttons1, _SEG7, Buttons1, SEG7 |
| 4 | Conn_01x12_Male | Connector_PinHeader_2.54mm:PinHeader_1x12_P2.54mm_Vertical | GPIO13, GPIO14, SCAN1, SCAN2 |
| 4 | Conn_01x20_Female | Connector_PinHeader_2.54mm:PinHeader_1x20_P2.54mm_Vertical | J3, J4, P2, P3 |
| 2 | 100n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2 |
| 2 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R9, Ra1 |
| 2 | 74HC164 | Package_DIP:DIP-14_W7.62mm_LongPads | U1, U2 |
| 2 | AO3400A | Package_TO_SOT_SMD:SOT-23 | Q1, Qa1 |
| 2 | Conn_01x02_Male | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | ToDebug02, ToDebugx2 |
| 2 | Conn_01x08_Male | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | 3V3, V0 |
| 2 | Conn_01x10_Male | Connector_PinHeader_2.54mm:PinHeader_1x10_P2.54mm_Vertical | J2, Ja3 |
| 2 | Conn_01x20_Male | Connector_PinHeader_2.54mm:PinHeader_1x20_P2.54mm_Vertical | P1, P4 |
| 2 | IN | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | IN1, J6 |
| 2 | OUT | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J7, OUT1 |
| 2 | SolderJumper_3_Open | Jumper:SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mm_NumberLabels | _STM32, STM32 |
| 1 | Button+LED1 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | JS1 |
| 1 | Button+LED2 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | JS2 |
| 1 | Button+LED3 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | JS3 |
| 1 | Button+LED4 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | JS4 |
| 1 | Button+LED5 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | JS5 |
| 1 | Button+LED6 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | JS6 |
| 1 | Button+LED7 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | JS7 |
| 1 | Button+LED8 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | JS8 |
| 1 | Conn_01x12_Male | Connector_PinHeader_2.00mm:PinHeader_1x12_P2.00mm_Vertical | CN14 |
| 1 | Conn_01x13_Male | Connector_PinHeader_2.00mm:PinHeader_1x13_P2.00mm_Vertical | CN13 |
Questions
How big is the MidiInterface PCB?
It measures 223.6 × 91.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the MidiInterface use?
246 parts, built around the 74HC164 and AO3400A. 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 MidiInterface KiCad files?
From the radionerd/VirtualPipeOrgan repository on GitHub, at the commit this page was made from: the board is PCBs/MidiInterfaceAll/MidiInterface.kicad_pcb and its schematic PCBs/ButtonMountingBoard/ButtonMountingBoard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the MidiInterface design in my own project?
Its repository states no licence, so its author keeps all rights: ask radionerd before reusing the design.
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