4op drum module rev2

vk2gpu·4op_drum_synth·hardware/4op_drum_module_rev2.kicad_pcb

4op drum module rev2 layout, top view — open source board by vk2gpu

About the 4op drum module rev2

4op drum module rev2 is an open source PCB design by vk2gpu, published on GitHub. It is a 2-layer board measuring 99.1 × 99.1 mm, with 117 components from 29 distinct parts.

Other key parts include the L78L05, 74HC14, 74HCT595, BluePill_STM32F103C and YMF262. By type, the board carries 30 diodes, 29 resistors, 24 capacitors, 14 connectors, 11 switches and 9 ICs.

It belongs with the audio designs in this gallery, and the repository also holds 1 earlier revision of it.

From the project

OPL3 based 4-op drum synth module

Main components on the 4op drum module rev2

L78L05 74HC14 74HCT595 BluePill_STM32F103C YMF262 YAC512 TL074

4op drum module rev2 bill of materials (BOM)

117 components, 29 distinct parts.

Qty	Part	Footprint	Refs
1	L78L05	SOT-89-3_Handsoldering	U1
1	74HC14	SOIC-14_3.9x8.7mm_P1.27mm	U2
1	74HCT595	SOIC-16W_5.3x10.2mm_P1.27mm	U3
1	BluePill_STM32F103C	DIP-40_W15.24mm_Socket	U4
1	YMF262	SOIC-24W_7.5x15.4mm_P1.27mm	U5
2	YAC512	SOIC-16_4.55x10.3mm_P1.27mm	U6, U7
2	TL074	SOIC-14_3.9x8.7mm_P1.27mm	U8, U9
1	Conn_02x05_Eurorack	IDC-Header_2x05_P2.54mm_Vertical	J1
10	Jack	Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles_TS	J2, J3, J4, J5, J6, J7, J10, J11 +2
1	Conn_01x04_Male	PinHeader_1x04_P2.54mm_Vertical	J8
1	Conn_01x11_Female	PinSocket_1x11_P2.54mm_Vertical	J9
1	Conn_01x08_Female	PinSocket_1x08_P2.54mm_Vertical	J14
6	SW_Push	SW_SPST_EVQP0	SW1, SW2, SW3, SW4, SW5, SW6
5	Rotary	RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm	SW7, SW8, SW9, SW10, SW11
3	1N4004	D_SOD-123	D1, D2, D3
6	LED	LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder	D4, D5, D6, D7, D8, D9
15	1N4148	D_0603_1608Metric_Pad1.05x0.95mm_HandSolder	D10, D11, D12, D13, D14, D15, D16, D17 +7
6	LED	LED_D1.8mm_W3.3mm_H2.4mm	D25, D26, D27, D28, D29, D30
2	22uF	C_1206_3216Metric_Pad1.42x1.75mm_HandSolder	C1, C2
5	1uF	C_0603_1608Metric_Pad1.05x0.95mm_HandSolder	C3, C21, C22, C23, C24

Show 9 more

Qty	Part	Footprint	Refs
9	100nF	C_0603_1608Metric_Pad1.05x0.95mm_HandSolder	C4, C5, C6, C7, C8, C17, C18, C19 +1
2	33pf	C_0603_1608Metric_Pad1.05x0.95mm_HandSolder	C9, C10
2	10uF	C_0603_1608Metric_Pad1.05x0.95mm_HandSolder	C11, C12
4	2700pF	C_0603_1608Metric_Pad1.05x0.95mm_HandSolder	C13, C14, C15, C16
2	10	R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal	R1, R2
6	100k	R_0603_1608Metric_Pad1.05x0.95mm_HandSolder	R3, R4, R5, R6, R7, R8
11	1k	R_0603_1608Metric_Pad1.05x0.95mm_HandSolder	R9, R10, R11, R12, R13, R14, R15, R16 +3
2	33	R_0603_1608Metric_Pad1.05x0.95mm_HandSolder	R20, R21
8	10k	R_0603_1608Metric_Pad1.05x0.95mm_HandSolder	R22, R23, R24, R25, R26, R27, R28, R29

4op drum module rev2 design files

The KiCad project lives in the vk2gpu/4op_drum_synth repository on GitHub; these links point at the commit this page was built from.

Layouthardware/4op_drum_module_rev2.kicad_pcb

4op drum module rev2: common questions

How big is the 4op drum module rev2?

The 4op drum module rev2 measures 99.1 × 99.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 4op drum module rev2?

117 components, from 29 distinct parts. The full bill of materials is listed on this page.

Where can I download the 4op drum module rev2 design files?

From the vk2gpu/4op_drum_synth repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the 4op drum module rev2 design in my own project?

The repository has no license, so all rights stay with vk2gpu. Use it as a reference, and ask the author before reusing the design.

More boards in 4op_drum_synth

Earlier revisions in the repo: 4op_drum_module

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