2 layers99.9 × 70.5 mm
Moglabs remote locking board
atomlaser-lab/esp32-laser-oscilloscope
Remote laser monitoring and locking control via the MOGLabs Diode Laser Controller.
41 parts1GPL-3.0
2 layers110.5 × 108.2 mm
Dexy
Len42/Dexy4DX7-inspired FM synthesis on a Pi Pico
- Size
- 110.5 × 108.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 78
- Nets
- 61
- Pads
- 261
- Tracks, vias
- 427, 13
- Pours
- 8
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 23 Jul 2023
- Updated
- 5 Sep 2025
Overview
Dexy is an open-source printed circuit board by Len42, from the Len42/Dexy repository on GitHub. It is a 2-layer board of 110.5 × 108.2 mm with 78 parts on 61 nets, routed with 427 tracks and 13 vias.
It is built around the MCP4821-E/P. Its parts include 22 resistors, 19 capacitors, 10 connectors, 7 diodes and 3 ICs.
Main components
1README
hardware/README.mdDexy Hardware
Dexy is a digital FM voice module based on an RP2040 microcontroller.
See here for more info.
Parts
78| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 100K | -lmp-misc:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R6, R7, R8, R9, R12, R13 |
| 8 | 100N | -lmp-misc:C_Disc_D5.0mm_W2.5mm_P2.50mm | C9, C13, C14, C15, C16, C17, C18, C19 |
| 6 | 1N5711 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3, D4, D5, D6 |
| 5 | WQP-PJ398 | -lmp-synth:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical | J1, J2, J3, J4, J5 |
| 4 | 150P | -lmp-misc:C_Disc_D5.0mm_W2.5mm_P2.50mm | C1, C2, C3, C4 |
| 4 | 47K | -lmp-misc:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R16, R17, R18, R19 |
| 4 | MountingHole_M3 | -lmp-holes:MountingHole_PCB_3.2mm_M3 | H1, H2, H3, H4 |
| 3 | 10U | -lmp-misc:CP_Radial_D5.0mm_P2.50mm | C10, C11, C12 |
| 3 | 33K | -lmp-misc:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R10, R11, R15 |
| 2 | 100K | -lmp-synth:Potentiometer_SongHuei_Single_Vertical | RV2, RV3 |
| 2 | 330P | -lmp-misc:C_Rect_L7.2mm_W4.5mm_P5.00mm | C5, C6 |
| 2 | 51K | -lmp-misc:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R14, R20 |
| 2 | Jumper_Pins_3_Bridged12 | -lmp-misc:PinHeader_1x03_P2.54mm_Vertical | JP1, JP2 |
| 2 | LOGO | -lmp-misc:Logo_OSHW | G3, G4 |
| 2 | LOGO | -lmp-misc:Logo_CC_BY | G1, G2 |
| 2 | TL074 | Package_DIP:DIP-14_W7.62mm | U1, U2 |
| 1 | 100K | -lmp-synth:Potentiometer_Alpha_RD901F-40-00D_Single_Vertical | RV1 |
| 1 | 120K | -lmp-misc:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R4 |
| 1 | 1M | -lmp-misc:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R22 |
| 1 | 1N4001 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D7 |
| 1 | 200K | -lmp-misc:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R21 |
| 1 | 2U2 | -lmp-misc:CP_Radial_L7.0mm_D4.0mm_P2.50mm_Horiz | C8 |
| 1 | 499K | -lmp-misc:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3 |
| 1 | 5P6 | -lmp-misc:C_Disc_D5.0mm_W2.5mm_P2.50mm | C7 |
| 1 | 82K | -lmp-misc:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R5 |
| 1 | Conn_Eurorack_16 | -lmp-synth:IDC-Header-Eurorack-16-TH | J6 |
| 1 | Controls_Left | Connector_PinSocket_2.54mm:PinSocket_1x15_P2.54mm_Vertical | J7 |
| 1 | Controls_Right | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J9 |
| 1 | KB2040 | Adafruit:KB2040 | A1 |
| 1 | MCP4821 | Package_DIP:DIP-8_W7.62mm | U3 |
| 1 | Main_Left | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J10 |
| 1 | Main_Right | Connector_PinHeader_2.54mm:PinHeader_1x15_P2.54mm_Vertical | J8 |
| 1 | OLED_128x32 | Adafruit:OLED_128x32_0.91in_NoHoles | A2 |
| 1 | PEC11R-4x20x-S00xx | -lmp-synth:Encoder_Bourns_PEC11R_Switch | SW1 |
| 1 | USB C Adapter 90deg | -lmp-connector:USB-C-Adapter-90-Outline | A4 |
Questions
How big is the Dexy PCB?
It measures 110.5 × 108.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Dexy use?
78 parts, built around the MCP4821-E/P. 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 Dexy KiCad files?
From the Len42/Dexy repository on GitHub, at the commit this page was made from: the board is hardware/Dexy.kicad_pcb and its schematic hardware/Dexy.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Dexy design in my own project?
Its repository states no licence, so its author keeps all rights: ask Len42 before reusing the design.
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