2 layers39.8 × 110.4 mm
Formant vco
vk2seb/formant_vco_prototype
KiCAD EDA files for an analog voltage-controlled oscillator compatible with modular Eurorack synthesizers.
82 parts37
2 layers106.7 × 48.3 mm
Midi theremin
alfieRopson/Emerging-TechCollection of files and stuff for my emerging tech brief
- Size
- 106.7 × 48.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 19
- Nets
- 46
- Pads
- 88
- Tracks, vias
- 93, 5
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 21 May 2025
- Updated
- 25 May 2025
Overview
Midi theremin is an open-source printed circuit board by alfieRopson, from the alfieRopson/Emerging-Tech repository on GitHub. It is a 2-layer board of 106.7 × 48.3 mm with 19 parts on 46 nets, routed with 93 tracks and 5 vias.
It is built around the MCP602-I/P and CD4093. Its parts include 11 resistors, 3 capacitors, 2 ICs and 1 connector. It belongs with the audio and music boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
2README
README.mdCollection of files as additional evidence for my Emerging Tech Brief.
This was created for files in connection with my fullfillment of he Emerging Tech Module as part of the 3rd year of my degree at Nottingham Trent University. If you aren't a tutor at NTU and you happen to find this because i've accidentally made it public then please feel free to use the code here if it's useful to you. If you are a tutor at NTU you have successfully found the right place.
MIDI_ultrasonic_trigger.ino Arduino Sketch for ultrasonic Triggers
alfie et.show.gz Dot2 showfile This can be viewed in the dot2 onpc software downloadable here: https://www.malighting.com/downloads/products/dot2/
Microsoft Projection Mapping.avc Resolume Showfile
midi theremin and ultrasonic trigger folders contain kicad project files
Plots and Reports contain Technical Documents produced
Microsoft Full production Spreadsheet contains the full production costing
Emerging Tech final invoice is the final invoice
Power Calculations Spreadsheet shows the power draw for each circuit
Rigging Calculations Spreadsheet contains the weight bearing calculations for the truss and motors
Link to Capture File https://myntuac-my.sharepoint.com/:u:/g/personal/n1067397_my_ntu_ac_uk/EfvAf5Dc8PdMnaO8TO10--gBLIG8ppxRylPfLy_TPjcecw?e=hPuOsN
Link to Video Assets https://myntuac-my.sharepoint.com/:f:/g/personal/n1067397_my_ntu_ac_uk/EuZve8bgMbRAsPguAyOVR-gBkFQ3IOzpsc9bqpKOynCcEA?e=M3Nbbo
Video Evidence: Cues 1-4 Youtube Playlist: https://www.youtube.com/playlist?list=PLZdywKp9EDC7ZR6HvclH-SQt3OLCKNzIM
Trigger Demo Video: https://youtu.be/9YEa6ooch3k
Parts
19| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 10K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R2, R3, R4, R5, R6, R7, RV1 |
| 2 | 100pF | Capacitor_THT:CP_Radial_Tantal_D4.5mm_P2.50mm | C1, C2 |
| 2 | 220R | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R9, R10 |
| 1 | 1nF | Capacitor_THT:CP_Radial_Tantal_D4.5mm_P2.50mm | C3 |
| 1 | 5K1 | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R1 |
| 1 | 6K8 | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R8 |
| 1 | Antenna | Connector_Pin:Pin_D1.0mm_L10.0mm | AE1 |
| 1 | Arduino_Nano_v3.x | Module:Arduino_Nano | A1 |
| 1 | CD4093 | Package_DIP:DIP-14_W10.16mm | U2 |
| 1 | DIN-5 | Connectors_UNITRA:DIN-5 | J1 |
| 1 | MCP602 | Package_DIP:DIP-8_W7.62mm | U1 |
Questions
How big is the Midi theremin PCB?
It measures 106.7 × 48.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Midi theremin use?
19 parts, built around the MCP602-I/P and CD4093. 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 theremin KiCad files?
From the alfieRopson/Emerging-Tech repository on GitHub, at the commit this page was made from: the board is midi theremin/midi theremin.kicad_pcb and its schematic Ultrasonic Trigger/Ultrasonic Trigger.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Midi theremin design in my own project?
Its repository states no licence, so its author keeps all rights: ask alfieRopson before reusing the design.
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