2 layers95 × 46 mm
2 layers24.5 × 15.2 mm
Midi io
Harvie/Designs3Plans of physical things that i've designed
- Size
- 24.5 × 15.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 13
- Nets
- 14
- Pads
- 41
- Tracks, vias
- 69, 0
- Pours
- 11
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 26 Aug 2011
- Updated
- 5 Nov 2026
Overview
Midi io is an open-source printed circuit board by Harvie, from the Harvie/Designs repository on GitHub. It is a 2-layer board of 24.5 × 15.2 mm with 13 parts on 14 nets, routed with 69 tracks and 0 vias.
It is built around the 74LVC1G07, H11L1SR2M and 1N4148W. Its parts include 5 resistors, 3 ICs, 2 connectors, 1 capacitor and 1 diode. It belongs with the audio and music boards of this library.
Main components
3
74LVC1G07
SOT-353-40℃~+105℃ 1 1 1.65V~5.5V 1.6ns@5.5V,50pF 24mA 4uA 74LVC Open-drain Power-off isolation、Level shifting Unidirectional SOT-353 Buffers, Drivers, Receivers, Transceivers ROHSWuxi I-core ElecBuffers, Drivers, Receivers, Transceivers
H11L1SR2M
SOP-6-2.54mm-40℃~+85℃ 0.4V 1 1.2V 1.6mA 1Mbit/s 250mW 30mA 3V~15V 4.17kV 4us 4us 50mA 6V DC SOP-6-2.54mm Logic Output Optoisolators ROHSonsemiLogic Output Optoisolators
1N4148W
SOD-123150mA 1A 1V@50mA 1uA@75V 400mW 4ns 75V Independent SOD-123 Switching Diodes ROHSSTMicroelectronicsSwitching Diodes
README
README.md#My designs of stuff
Parts
13| Qty | Value | Footprint | References |
|---|---|---|---|
| 1 | 100nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1 |
| 1 | 10K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5 |
| 1 | 10R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2 |
| 1 | 1N4148W | Diode_SMD:D_SOD-123 | D1 |
| 1 | 220R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1 |
| 1 | 33R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3 |
| 1 | 470R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4 |
| 1 | 74LVC1G07 | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | U2 |
| 1 | H11L1SR2M | Package_DIP:SMDIP-6_W9.53mm | U1 |
| 1 | MCP1700x-330xxTT | Package_TO_SOT_SMD:SOT-23 | U3 |
| 1 | MCU | Harvie-MIDI:PinHeader_1x06_P2.54mm_Vertical | J2 |
| 1 | MIDI | Harvie-MIDI:PinHeader_1x06_P2.54mm_Vertical | J1 |
| 1 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1 |
Questions
How big is the Midi io PCB?
It measures 24.5 × 15.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Midi io use?
13 parts, built around the 74LVC1G07, H11L1SR2M and 1N4148W. 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 Midi io KiCad files?
From the Harvie/Designs repository on GitHub, at the commit this page was made from: the board is electronics/midi-io/midi-io.kicad_pcb and its schematic electronics/midi-io/midi-io.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Midi io design in my own project?
Its repository states no licence, so its author keeps all rights: ask Harvie before reusing the design.
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