Scheda
About the Scheda PCB
Scheda is an open source NXP PCB design by AliDarSilenzio, published on GitHub. It is a 2-layer board measuring 110 × 72 mm, with 24 components from 18 distinct parts.
Its main chip is the Teensy 4.1, from the NXP family. By type, the board carries 10 resistors, 7 connectors, 6 capacitors and 1 IC.
It belongs with the audio designs in this gallery.
From the project
Alidu Otamatone — strumento elettronico a fiato open source di Dario Amabile: nastro capacitivo senza usura, sensore di fiato, MIDI, Teensy 4.1
Progetto di Dario Amabile — strumento elettronico a fiato, open source.
L'Otamatone diventato strumento vero: un dito che scivola sul manico sceglie la nota senza scalini, il fiato in un bocchino dà la dinamica, sei pulsanti cambiano ottava e suono. Esce in MIDI, su USB e su presa DIN, e comanda qualsiasi sintetizzatore. Il cervello è un Teensy 4.1.
Progettato per non avere parti che si consumano: le note si leggono con un nastro capacitivo sotto una lastra protettiva, senza contatto.
Main components on the Scheda
Scheda bill of materials (BOM)
24 components, 18 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Teensy 4.1 | Teensy_4.1 | U1 |
| 1 | FIATO | JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J1 |
| 1 | TRILL A | JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J2 |
| 1 | TRILL B | JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J3 |
| 1 | MIDI | JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J4 |
| 1 | SUSTAIN | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J5 |
| 1 | PULSANTI | JST_XH_B7B-XH-A_1x07_P2.50mm_Vertical | J6 |
| 1 | ESPRESSIONE | JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J7 |
| 3 | 100n | C_Disc_D5.0mm_W2.5mm_P5.00mm | C1, C4, C6 |
| 1 | 1u | C_Disc_D5.0mm_W2.5mm_P5.00mm | C2 |
| 1 | 1n | C_Disc_D5.0mm_W2.5mm_P5.00mm | C3 |
| 1 | 10u | CP_Radial_D5.0mm_P2.00mm | C5 |
| 4 | 4k7 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R3, R5, R6 |
| 2 | 12k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2, R4 |
| 1 | 1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R7 |
| 1 | 100k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R8 |
| 1 | 33 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R9 |
| 1 | 10 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R10 |
Scheda design files
The KiCad project lives in the AliDarSilenzio/alidu-otamatone repository on GitHub; these links point at the commit this page was built from.
Scheda: common questions
What microcontroller does the Scheda use?
The Scheda is built around the Teensy 4.1, from the NXP family.
How big is the Scheda PCB?
The Scheda measures 110 × 72 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Scheda?
24 components, from 18 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Scheda design files?
From the AliDarSilenzio/alidu-otamatone repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Scheda design in my own project?
The repository has no license, so all rights stay with AliDarSilenzio. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Scheda without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug NXP firmware against it before you order a PCB.
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