2 layers140 × 108 mm
4 layers120 × 108 mm
Dk2 06
mattybrad/drumkid212- Size
- 120 × 108 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 189
- Nets
- 178
- Pads
- 731
- Tracks, vias
- 1,766, 213
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 8 Sep 2022
- Updated
- 8 Jul 2026
Overview
Dk2 06 is an open-source printed circuit board by mattybrad, from the mattybrad/drumkid2 repository on GitHub, published under the GPL-3.0 licence. It is a 4-layer board of 120 × 108 mm with 189 parts on 178 nets, routed with 1,766 tracks and 213 vias.
It is built around the TL072, TPS54331DR-JSM and 74HC165D, with the 74HC4051, 74HC595 and AP7333-33SAG among its other parts. Its parts include 78 resistors, 38 capacitors, 19 switches, 17 ICs and 16 connectors. It belongs with the RP2040 boards of this library.
Main components
10
TL072
SOP-8-18V~18V 0℃~+70℃ 1.4mA 1.5nA 10V/us 10mV 2 2.5nA 3MHz 85dB SOP-8 Operational Amplifier ROHSGcoreOperational Amplifier
TPS54331DR-JSM
SOP-8-40℃~+125℃ 1 2mA 3A 4.5V~40V 400kHz Adjustable Buck Built-in No Overcurrent Protection、Light load efficient mode、Cycle-by-cycle current limiting Step-down type SOP-8 DC-DC Converters ROHSJSMSEMIDC-DC Converters
74HC165D
SO-16-40℃~+125℃ 1 28ns@6V,50pF 2V~6V 35MHz 500mW 74HC 8 Parallel or Serial to Serial SOIC-16 Shift Registers ROHSNexperiaShift Registers
74HC4051
SOP-16-40℃~+85℃ 1 170MHz 28ns 29ns 3V~9V 5ns 5pF 80Ω 8:1 SOP-16 Analog Switches, Multiplexers ROHSWuxi I-core ElecAnalog Switches, Multiplexers74HC595
SOP-16-40℃~+85℃ 1 100ns@5V,50pF 10MHz 2V~6V 74HC 8 Serial-to-Serial or Parallel Tri-State SOP-16 Shift Registers ROHSGRShift Registers
AP7333-33SAG
SOT-23-40℃~+85℃@(Ta) 1 3.3V 300mA 300mV@(300mA) 65dB@(100Hz) 65uA 6V Fixed Over Current Protection、Over Temperature Protection、Short Circuit Protection Positive SOT-23 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSDiodes IncorporatedVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
PCM5102PW
TSSOP-20-25℃~+85℃ 1 3V~3.6V Digital filtering、Power-down mode I2S TSSOP-20 ADCs/DACs - Special Purpose ROHSTexas InstrumentsADCs/DACs - Special Purpose
1N5819WS
SOD-3231 Independent 1A 25A 40V 500uA@40V 600mV@1A SOD-323 Schottky Diodes ROHSGuangdong HottechSchottky Diodes
B340A
SMA(DO-214AC)-55℃~+150℃ 1 Independent 3A 40V 500mV@3A 500uA@40V 80A SMA(DO-214AC) Schottky Diodes ROHSDiodes IncorporatedSchottky DiodesMMBT3904
SOT-23-55℃~+150℃ 1 NPN 100 100nA 200mA 200mW 300MHz 300mV 40V 6V NPN SOT-23 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)
README
README.mdDrumkid 2
Aleatoric drum machine, uses random numbers to generate/alter drumbeats. This project is the successor to the original Drumkid, which was released in 2020. Drumkid 2 runs on a Raspberry Pi Pico. This repo contains both code for the Pico and PCB files.
Setup
I used the official Raspberry Pi Pico installer for Windows to set up the Pico toolchain for Visual Studio Code. Remember to update the repo's submodules. The SD card code submodule is a specific commit (v1.1.2), not the latest version. Have included the .vscode folder, which may be different on non-Windows systems?
Parts
189| Qty | Value | Footprint | References |
|---|---|---|---|
| 20 | 10k | Resistor_SMD:R_0603_1608Metric | R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25, R26, R27, R28 +4 |
| 19 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | SW1, SW2, SW3, SW4, SW5, SW6, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19 +3 |
| 15 | 100k | Resistor_SMD:R_0603_1608Metric | R30, R32, R36, R38, R42, R64, R65, R66, R67, R70, R71, R72, R73, R76, R77 |
| 12 | 10k | Library:Potentiometer_Alps_RK09K_vertical_biggerholes | RV1, RV2, RV3, RV4, RV5, RV6, RV7, RV8, RV9, RV10, RV11, RV12 |
| 12 | 75R | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12 |
| 7 | 1k | Resistor_SMD:R_0603_1608Metric | R55, R56, R68, R69, R74, R75, R78 |
| 5 | 100n | Capacitor_SMD:C_0603_1608Metric | C19, C20, C36, C37, C38 |
| 5 | 10uF | Capacitor_SMD:C_0603_1608Metric | C17, C18, C25, C30, C34 |
| 4 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C23, C28, C31, C32 |
| 4 | 1n | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C4 |
| 4 | 1uF | Capacitor_SMD:C_0603_1608Metric | C5, C9, C24, C29 |
| 4 | 240k | Resistor_SMD:R_0603_1608Metric | R29, R31, R35, R37 |
| 4 | 33k | Resistor_SMD:R_0603_1608Metric | R33, R34, R39, R40 |
| 4 | 39k | Resistor_SMD:R_0603_1608Metric | R49, R50, R53, R54 |
| 4 | 470uF | Capacitor_SMD:CP_Elec_6.3x7.7 | C13, C14, C15, C16 |
| 4 | LED | LED_THT:LED_D3.0mm | D1, D2, D3, D4 |
| 4 | TL072 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U13, U15, U16, U17 |
| 3 | 56R | Resistor_SMD:R_0603_1608Metric | R57, R58, R59 |
| 3 | 74HC165 | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U4, U5, U10 |
| 2 | 18p | Capacitor_SMD:C_0603_1608Metric | C21, C22 |
| 2 | 2.2nF | Capacitor_SMD:C_0603_1608Metric | C33, C35 |
| 2 | 2.2uF | Capacitor_SMD:C_0603_1608Metric | C26, C27 |
| 2 | 470R | Resistor_SMD:R_0603_1608Metric | R60, R61 |
| 2 | 5.6k | Resistor_SMD:R_0603_1608Metric | R51, R52 |
| 2 | 74HC4051 | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U6, U9 |
| 2 | 74HC595 | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U1, U2 |
| 2 | MCP6002-xSN | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U7, U8 |
| 1 | 1.65k | Resistor_SMD:R_0603_1608Metric | R48 |
| 1 | 100K | Resistor_SMD:R_0603_1608Metric | R62 |
| 1 | 100nF | Capacitor_SMD:C_0603_1608Metric | C7 |
| 1 | 10K | Resistor_SMD:R_0603_1608Metric | R63 |
| 1 | 10pF | Capacitor_SMD:C_0603_1608Metric | C11 |
| 1 | 10uH | Inductor_SMD:L_Sunlord_SWPA6045S | L1 |
| 1 | 1N5819WS | Diode_SMD:D_SOD-323 | D6 |
| 1 | 1nF | Capacitor_SMD:C_0603_1608Metric | C10 |
| 1 | 22uF | Capacitor_SMD:C_0805_2012Metric | C6 |
| 1 | 330k | Resistor_SMD:R_0603_1608Metric | R41 |
| 1 | 43.2k | Resistor_SMD:R_0603_1608Metric | R46 |
| 1 | 47uF | Capacitor_SMD:C_1210_3225Metric | C12 |
| 1 | 8.2nF | Capacitor_SMD:C_0603_1608Metric | C8 |
| 1 | AP7333-33SAG | Package_TO_SOT_SMD:SOT-23 | U11 |
| 1 | B340A | Diode_SMD:D_SMA | D5 |
| 1 | CA56-12EWA | Library:SR410361N | U3 |
| 1 | CV_In_1 | AudioJacks:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical | J11 |
| 1 | CV_In_2 | AudioJacks:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical | J12 |
| 1 | CV_In_3 | AudioJacks:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical | J13 |
| 1 | CV_In_4 | AudioJacks:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical | J14 |
| 1 | Conn_01x03_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J10 |
| 1 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J15 |
| 1 | Euro_Out_1 | AudioJacks:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical | J4 |
| 1 | Euro_Out_2 | AudioJacks:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical | J9 |
| 1 | Eurorack_Power | Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical | J16 |
| 1 | MMBT3904 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | Micro_SD_Card | misc:YAMAICHI_MICROSD_VERTICAL | J5 |
| 1 | PCM5102 | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U14 |
| 1 | RaspberryPi_Pico | Library:RaspberryPi_Pico_Common_THT_dk2 | A1 |
| 1 | Sync_In | AudioJacks:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical | J3 |
| 1 | Sync_Out | AudioJacks:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical | J8 |
| 1 | TPS54331DR | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U12 |
| 1 | Trigger_Out_1 | AudioJacks:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical | J1 |
| 1 | Trigger_Out_2 | AudioJacks:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical | J2 |
| 1 | Trigger_Out_3 | AudioJacks:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical | J6 |
| 1 | Trigger_Out_4 | AudioJacks:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical | J7 |
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Questions
How big is the Dk2 06 PCB?
It measures 120 × 108 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Dk2 06 use?
189 parts, built around the TL072, TPS54331DR-JSM, 74HC165D and 74HC4051. 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 Dk2 06 KiCad files?
From the mattybrad/drumkid2 repository on GitHub, at the commit this page was made from: the board is pcb/dk2_06/dk2_06.kicad_pcb and its schematic pcb/dk2_00/cv.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Dk2 06 design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).