2 layers75.6 × 113 mm
Lingcordion
LingDong-/lingcordion
Pocket-sized digital musical instrument inspired by the piano and the accordion
61 parts14
2 layers100 × 70 mm
Utf-9-samplified
wgd-modular/utf-9-samplified19A standalone drum machine based on the bleep drum.
- Size
- 100 × 70 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 27
- Nets
- 42
- Pads
- 120
- Tracks, vias
- 292, 5
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 5 Oct 2024
- Updated
- 8 Mar 2025
Overview
Utf-9-samplified is an open-source printed circuit board by wgd-modular, from the wgd-modular/utf-9-samplified repository on GitHub. It is a 2-layer board of 100 × 70 mm with 27 parts on 42 nets, routed with 292 tracks and 5 vias.
It is built around the MCP4901-E/P and PJ301M-12. Its parts include 8 switches, 6 resistors, 3 connectors, 2 ICs and 2 diodes. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
2
MCP4901-E/P
PDIP-8-40℃~+125℃ 1 1LSB 2.7V~5.5V 4.5us 8 Power-on reset、Power-down mode、Programmable gain SPI PDIP-8 Digital to Analog Converters (DAC) ROHSMicrochip TechnologyDigital To Analog Converters (DAC)
PJ301M-12
3.5mm switched mono phone jack for vertical pcb mountWenzhou QingPu Electronics Co.Uncategorised
README
README.mdutf-9-samplified
A new take on the bleep drum using an arduino nano. The bleep drum was a rad-fi drum machine designed by Dr. Bleep.
BOM
| Designator | Footprint | Quantity | Value |
|---|---|---|---|
| SW1,SW4,SW2,SW6,SW5,SW8,SW7,SW3 | SW_PUSH-12mm | 8 | 12x12 Tactile |
| R2,R1,R6,R5 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | 4 | 1K |
| R3 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | 1 | 10K |
| J2 | PJ301M-12 | 1 | PJ301M-12 |
| J3,J1 | Stereo PJ301M-12 | 2 | Stereo PJ301M-12 |
| D2 | LED_D5.0mm | 1 | LED |
| RV2,RV1 | Potentiometer_Alpha_RD901F-40-00D_Single_Vertical | 2 | B100K |
| U2 | DIP-8_W7.62mm | 1 | 6N137 |
| Q1 | TO-92_Inline | 1 | 2N3904 |
| D1 | D_DO-35_SOD27_P7.62mm_Horizontal | 1 | 1N4148 |
| R4 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | 1 | 220R |
| U1 | DIP-8_W7.62mm | 1 | MCP4901 |
| C1 | CP_Radial_D5.0mm_P2.50mm | 1 | 10u |
| JP1 | TestPoint_2Pads_Pitch2.54mm_Drill0.8mm | 1 | Jumper |
| A1 | Arduino_Nano | 1 | Arduino_Nano_v3.x |
Make sure to flash the Arduino first and then solder it in directly - otherwise it will be too high and the frontpanel wont fit. Make sure you have a genuine arduino nano!
Parts
27| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 12x12 Tactile | Button_Switch_THT:SW_PUSH-12mm | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 |
| 4 | 1K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R5, R6 |
| 3 | PJ301M-12 | Eurocad:PJ301M-12 | J1, J2, J3 |
| 2 | B100K | Potentiometer_THT:Potentiometer_Alpha_RD901F-40-00D_Single_Vertical | RV1, RV2 |
| 1 | 10K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3 |
| 1 | 10u | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C1 |
| 1 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1 |
| 1 | 220R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R4 |
| 1 | 2N3904 | Package_TO_SOT_THT:TO-92_Inline | Q1 |
| 1 | 6N137 | Package_DIP:DIP-8_W7.62mm | U2 |
| 1 | Arduino_Nano_v3.x | Module:Arduino_Nano | A1 |
| 1 | Jumper | TestPoint:TestPoint_2Pads_Pitch2.54mm_Drill0.8mm | JP1 |
| 1 | LED | LED_THT:LED_D5.0mm | D2 |
| 1 | MCP4901 | Package_DIP:DIP-8_W7.62mm | U1 |
Questions
How big is the Utf-9-samplified PCB?
It measures 100 × 70 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Utf-9-samplified use?
27 parts, built around the MCP4901-E/P and PJ301M-12. 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 Utf-9-samplified KiCad files?
From the wgd-modular/utf-9-samplified repository on GitHub, at the commit this page was made from: the board is pcb/pcb.kicad_pcb and its schematic panel/panel.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Utf-9-samplified design in my own project?
Its repository states no licence, so its author keeps all rights: ask wgd-modular before reusing the design.
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