zlosynth/achordion38Chord-crafting quantizing wavetable oscillator.
Achordion is an open-source printed circuit board by zlosynth, from the zlosynth/achordion repository on GitHub, published under the CC-BY-SA-4.0 licence. It is a 2-layer board of 48.4 × 106.3 mm with 55 parts on 64 nets, routed with 433 tracks and 31 vias.
It is built around the TL072, B10K and BAT54S. Its parts include 21 resistors, 11 diodes, 8 connectors, 6 capacitors and 2 ICs. It belongs with the audio and music boards and the STM32 boards of this library.
Chord-crafting quantizing wavetable oscillator module for Eurorack.
Find more details about the module, including a feature overview video and a user manual, on its website.
If you wish to upgrade to a newer version of firmware, refer to the respective Release description.
See DEVELOPMENT.md to find some basic commands to interact with the project. To learn more, read the code. A good place to start would be eurorack/src/main.rs.
Software of Achordion is distributed under the terms of the General Public License version 3. See LICENSE-SOFTWARE for details.
Schematics and PCB layout are distributed under the terms of Creative Commons BY-SA. See LICENSE-HARDWARE for details. Parts of the schematics are based on Emilie Gillet's Mutable Instruments, kudos to her for making them open.
The manual is distributed under the terms of Creative Commons BY-SA too. See LICENSE-MANUAL for details.
Read the CHANGELOG.md to learn about changes introduced in each release.
See VERSIONING.md to find detailed information about versioning of the project and compatability between its software and hardware.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R3, R4, R5, R6, R7, R8, R20, R21 |
| 8 | LED | LED_THT:LED_D3.0mm | D1, D2, D3, D4, D5, D6, D7, D8 |
| 7 | Jack | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J1, J2, J3, J4, J5, J6, J7 |
| 6 | 47k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R14, R15, R16, R17, R18, R19 |
| 5 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R9, R10, R11, R12, R13 |
| 4 | B10k | BetterFootprints:Potentiometer_Alpha | RV1, RV2, RV3, RV4 |
| 2 | 100n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C5, C6 |
| 2 | 10u | Capacitor_SMD:CP_Elec_5x5.8 | C3, C4 |
| 2 | 18p | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2 |
| 2 | FB | Inductor_SMD:L_0805_2012Metric_Pad1.05x1.20mm_HandSolder | FB1, FB2 |
| 2 | Schottky | Diode_SMD:D_SOD-123 | D10, D11 |
| 1 | BAT54S | Package_TO_SOT_SMD:SOT-23_Handsoldering | D9 |
| 1 | Button | Button_Switch_THT:SW_PUSH_6mm | SW1 |
| 1 | Daisy_Patch_SM | Custom:Daisy_Patch_SM | U1 |
| 1 | Power | BetterFootprints:Power_Connector_Connfly | J8 |
| 1 | TL072 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2 |
It measures 48.4 × 106.3 mm and has 2 copper layers, 1.6 mm thick.
55 parts, built around the TL072, B10K and BAT54S. 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.
From the zlosynth/achordion repository on GitHub, at the commit this page was made from: the board is hardware/Achordion.kicad_pcb and its schematic hardware/Achordion.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the CC-BY-SA-4.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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