Eurorack Dexy Module
About the Eurorack Dexy Module
Eurorack Dexy Module is an open source PCB design by Len42, published on GitHub. It is a 2-layer board measuring 50.5 × 108.2 mm, with 70 components from 32 distinct parts.
Other key parts include the TL074, MCP4821, KB2040, OLED_128X32 and USB C Adapter 90deg. By type, the board carries 22 resistors, 19 capacitors, 10 connectors, 7 diodes, 3 ICs and 3 modules.
It belongs with the audio designs in this gallery.
From the project
DX7-inspired FM synthesis on a Pi Pico
Dexy is a digital FM voice module based on an RP2040 microcontroller.
Main components on the Eurorack Dexy Module
Eurorack Dexy Module bill of materials (BOM)
70 components, 32 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | TL074 Texas Instruments | DIP-14_W7.62mm | U1, U2 |
| 1 | MCP4821 Microchip | DIP-8_W7.62mm | U3 |
| 1 | KB2040 Adafruit | KB2040 | A1 |
| 1 | OLED_128X32 OLED_128x32 Adafruit | OLED_128x32_0.91in_NoHoles | A2 |
| 1 | USB C Adapter 90deg AFUNTA | USB-C-Adapter-90-Outline | A4 |
| 5 | WQP-PJ398 QingPu / Thonk | Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical | J1, J2, J3, J4, J5 |
| 1 | CONN_EURORACK_16 Conn_Eurorack_16 Wurth Elektronik | IDC-Header-Eurorack-16-TH | J6 |
| 1 | Controls_Left | PinSocket_1x15_P2.54mm_Vertical | J7 |
| 1 | Main_Right | PinHeader_1x15_P2.54mm_Vertical | J8 |
| 1 | Controls_Right | PinSocket_1x02_P2.54mm_Vertical | J9 |
| 1 | Main_Left | PinHeader_1x02_P2.54mm_Vertical | J10 |
| 2 | JUMPER_PINS_3_BRIDGED12 Jumper_Pins_3_Bridged12 | PinHeader_1x03_P2.54mm_Vertical | JP1, JP2 |
| 1 | 100K Alpha | Potentiometer_Alpha_RD901F-40-00D_Single_Vertical | RV1 |
| 2 | 100K Song Huei | Potentiometer_SongHuei_Single_Vertical | RV2, RV3 |
| 1 | PEC11R-4X20X-S00XX PEC11R-4x20x-S00xx Bourns | Encoder_Bourns_PEC11R_Switch | SW1 |
| 6 | 1N5711 STMicroelectronics | D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3, D4, D5, D6 |
| 1 | 1N4001 onsemi | D_DO-41_SOD81_P10.16mm_Horizontal | D7 |
| 4 | 150P Vishay/BC | C_Disc_D5.0mm_W2.5mm_P2.50mm | C1, C2, C3, C4 |
| 2 | 330P KEMET | C_Rect_L7.2mm_W4.5mm_P5.00mm | C5, C6 |
| 1 | 5P6 KEMET | C_Disc_D5.0mm_W2.5mm_P2.50mm | C7 |
Show 12 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 2U2 Panasonic | CP_Radial_L7.0mm_D4.0mm_P2.50mm_Horiz | C8 |
| 8 | 100N TDK | C_Disc_D5.0mm_W2.5mm_P2.50mm | C9, C13, C14, C15, C16, C17, C18, C19 |
| 3 | 10U Panasonic | CP_Radial_D5.0mm_P2.50mm | C10, C11, C12 |
| 8 | 100K Vishay / Dale | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R6, R7, R8, R9, R12, R13 |
| 1 | 499K YAGEO | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3 |
| 1 | 120K YAGEO | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R4 |
| 1 | 82K YAGEO | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R5 |
| 3 | 33K YAGEO | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R10, R11, R15 |
| 2 | 51K YAGEO | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R14, R20 |
| 4 | 47K YAGEO | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R16, R17, R18, R19 |
| 1 | 200K YAGEO | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R21 |
| 1 | 1M YAGEO | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R22 |
Eurorack Dexy Module design files
The KiCad project lives in the Len42/Dexy repository on GitHub; these links point at the commit this page was built from.
- Layouthardware/Dexy.kicad_pcb
- Schematichardware/Dexy.kicad_sch
- BOMhardware/Dexy-BOM.csv
Eurorack Dexy Module: common questions
How big is the Eurorack Dexy Module?
The Eurorack Dexy Module measures 50.5 × 108.2 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Eurorack Dexy Module?
70 components, from 32 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 Eurorack Dexy Module design files?
From the Len42/Dexy repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Eurorack Dexy Module design in my own project?
The repository has no license, so all rights stay with Len42. Use it as a reference, and ask the author before reusing the design.
Similar boards
OtterCastAudioV2
Ottercast
50 × 49.3 mm216 parts4LMIT665
FunBox
GuitarML
59.7 × 67.5 mm63 parts2LMIT278
Eurorack pmod
apfaudio
35 × 110 mm116 parts4LCERN-OHL-S-2.0239
XassetteAsterisk
SdtElectronics
56 × 56 mm137 parts2LCERN-OHL-W-2.0229
AddOnC
freeDSP
380 × 45 mm97 parts2LCC-BY-SA-4.0222
AddOnA
178 × 39 mm55 parts2LCC-BY-SA-4.0222