2 layers1,817.8 × 281.5 mm
Clarinoid devboard
thenfour/Clarinoid
an electronic wind instrument / clarinet / flute / not sure
377 parts4
2 layers60 × 62 mm
Midiperformer
thenfour/Clarinoid4an electronic wind instrument / clarinet / flute / not sure
- Size
- 60 × 62 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 41
- Nets
- 70
- Pads
- 153
- Tracks, vias
- 332, 30
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 13 Aug 2020
- Updated
- 2 May 2026
Overview
Midiperformer is an open-source printed circuit board by thenfour, from the thenfour/Clarinoid repository on GitHub. It is a 2-layer board of 60 × 62 mm with 41 parts on 70 nets, routed with 332 tracks and 30 vias.
It is built around the L7805 and WS2812. Its parts include 12 resistors, 8 switches, 6 ICs, 6 diodes and 5 connectors. It belongs with the NXP (LPC, Kinetis, i.MX RT) boards of this library.
Main components
2
L7805
TO-220ST0℃~+125℃@(Tj) 1 1.2A 20V 2V@(1A) 42uV 500uA 5V 73dB@(120Hz) Fixed Positive Short Circuit Protection TO-220ST Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSOSENVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
WS2812
SMD5050-4P1.57mm 1000mcd 110mcd 120us 2kHz 3.7V~5.3V 300ns 320mcd 451nm 523nm 5mm 5mm 623nm 800Kbit/s Built-in power-on reset circuit、Built-in power-on reset circuit Top-mount SMD5050-4P RGB LEDs(Built-in IC) ROHSWorldsemiRGB LEDs(Built-In IC)
Parts
41| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | SW_Push_SPDT | Connector_Wire:SolderWire-0.25sqmm_1x02_P4.5mm_D0.65mm_OD2mm | SW1, SW3, SW4, SW5, SW6, SW7, SW8 |
| 4 | 330 | Resistor_SMD:R_0603_1608Metric | R9, R10, R11, R12 |
| 4 | 47 | Resistor_SMD:R_0603_1608Metric | R3, R4, R5, R6 |
| 4 | LED_TX_A | Connector_Wire:SolderWire-0.25sqmm_1x02_P4.2mm_D0.65mm_OD1.7mm | D4, D5, D6, D7 |
| 2 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 2 | 1N4148 | Diode_SMD:D_SOD-123 | D1, D2 |
| 2 | 220 | Resistor_SMD:R_0603_1608Metric | R1, R2 |
| 2 | 470 | Resistor_SMD:R_0603_1608Metric | R7, R8 |
| 2 | 6N138 | Package_DIP:SMDIP-8_W7.62mm | U1, U2 |
| 2 | MountingHole | MountingHole:MountingHole_2.7mm_M2.5_ISO14580_Pad | H1, H2 |
| 1 | Barrel_Jack | Connector_Wire:SolderWire-0.25sqmm_1x02_P4.2mm_D0.65mm_OD1.7mm | J5 |
| 1 | L7805 | Package_TO_SOT_THT:TO-220-3_Vertical | U3 |
| 1 | MCP23017_SP | Package_DIP:DIP-28_W7.62mm | U6 |
| 1 | MIDI IN A | Connector_Wire:SolderWire-0.25sqmm_1x03_P4.2mm_D0.65mm_OD1.7mm | J2 |
| 1 | MIDI IN B | Connector_Wire:SolderWire-0.25sqmm_1x03_P4.2mm_D0.65mm_OD1.7mm | J1 |
| 1 | MIDI OUT A | Connector_Wire:SolderWire-0.25sqmm_1x03_P4.2mm_D0.65mm_OD1.7mm | J3 |
| 1 | MIDI OUT B | Connector_Wire:SolderWire-0.25sqmm_1x03_P4.2mm_D0.65mm_OD1.7mm | J4 |
| 1 | RotaryEncoder_Switch | Connector_Wire:SolderWire-0.25sqmm_1x05_P4.2mm_D0.65mm_OD1.7mm | SW2 |
| 1 | Teensy-LC | clarinoid2:Teensy_LC | U4 |
| 1 | WS2812 | Connector_Wire:SolderWire-0.25sqmm_1x03_P4.2mm_D0.65mm_OD1.7mm | U5 |
Questions
How big is the Midiperformer PCB?
It measures 60 × 62 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Midiperformer use?
41 parts, built around the L7805 and WS2812. 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 Midiperformer KiCad files?
From the thenfour/Clarinoid repository on GitHub, at the commit this page was made from: the board is CAD/MIDIperformer/midiperformer00-rev1/midiperformer.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Midiperformer design in my own project?
Its repository states no licence, so its author keeps all rights: ask thenfour before reusing the design.
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