Beatsequencer

meh2481·beatsequencer·pcb/BeatSequencer.kicad_pcb

About the Beatsequencer PCB

Beatsequencer is an open source RP2040/RP2350 PCB design by meh2481, published on GitHub under the Unlicense license. It is a 2-layer board measuring 200 × 150 mm, with 178 components from 47 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the NCP1117-3.3_SOT223, W25Q128JVS, NAU8315, MCP73831-2-OT and MC3416. By type, the board carries 42 ICs, 39 switches, 38 diodes, 29 capacitors, 18 resistors and 5 connectors.

From the project

Beat sequencer/soundboard with Adafruit MultiTrellis

Main components on the Beatsequencer

RP2040 NCP1117-3.3_SOT223 W25Q128JVS NAU8315 MCP73831-2-OT MC3416 Neopixel

Beatsequencer bill of materials (BOM)

178 components, 47 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	RP2040	RP2040-QFN-56	U1
1	NCP1117-3.3_SOT223	SOT-223-3_TabPin2	U2
1	W25Q128JVS	SOIC-8_5.23x5.23mm_P1.27mm	U3
1	NAU8315	QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm_ThermalVias	U4
1	MCP73831-2-OT	SOT-23-5	U5
1	MC3416	LGA-12_2x2mm_P0.5mm	U6
36	Neopixel	NeoPixel_3535	U7, U8, U9, U10, U11, U12, U13, U14 +28
1	AudioJack2_Ground_Switch	Jack_3.5mm_CUI_SJ1-3525N_Horizontal	X1
1	Crystal	Crystal_SMD_HC49-SD	Y1
1	USB_C_Receptacle	GCT_USB4105-GF-A	J1
1	1051620001	MOLEX_1051620001	J2
1	Conn_01x02	PinHeader_1x02_P2.54mm_Vertical	J3
1	Conn_01x02	PinSocket_1x02_P2.54mm_Vertical	J4
1	Conn_01x04	PinHeader_1x04_P2.54mm_Vertical	J5
1	0.75A	Fuse_0402_1005Metric_Pad0.77x0.64mm_HandSolder	F1
2	SolderJumper_3_Open	SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mm	JP1, JP3
1	SW_MEC_5E	SW_SPST_PTS810	SW1
36	SW_DIP_x01	Silicone Button Ring_L	SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9 +28
1	PWR	EG1206A	SW38
1	SK-14D01	SK-14D01 SP4T Switch	SW39

Show 27 more

Qty	Part	Footprint	Refs
1	LED_PINK/GRN	LED_1206_3216Metric	D1
1	LED_ORANGE	LED_1206_3216Metric	D3
36	1N4148	D_0402_1005Metric	D4, D5, D6, D7, D8, D9, D10, D11 +28
2	60Ohm	C_0402_1005Metric	FB1, FB2
3	10u	C_0805_2012Metric	C1, C2, C3
2	27p	C_0402_1005Metric	C4, C5
10	100n	C_0402_1005Metric	C6, C7, C9, C11, C12, C13, C14, C15 +2
2	1u	C_0402_1005Metric	C8, C10
1	10uF	C_0805_2012Metric	C18
1	1uF	C_0402_1005Metric	C19
4	4.7uF	C_0603_1608Metric	C20, C21, C22, C25
1	0.1uF	C_0402_1005Metric	C23
2	220pF	C_0402_1005Metric	C24, C26
1	0.1u	C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C27
2	100uF	CP_Elec_6.3x5.2	C28, C29
2	5.1k	R_0402_1005Metric	R1, R2
2	27.4	R_0402_1005Metric	R3, R4
2	1k	R_0402_1005Metric	R5, R7
1	DNF	R_0402_1005Metric	R6
1	220/100	R_0603_1608Metric	R8
2	100k	R_0402_1005Metric	R9, R10
1	2k	R_0402_1005Metric	R11
1	470	R_0402_1005Metric	R12
2	4.7k	R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R13, R14
1	DNF	R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R15
2	330	R_0603_1608Metric	R16, R17
1	R_Pack04_Split	R_Array_Convex_4x0612	RN1

Beatsequencer design files

The KiCad project lives in the meh2481/beatsequencer repository on GitHub; these links point at the commit this page was built from.

Beatsequencer: common questions

What microcontroller does the Beatsequencer use?

The Beatsequencer is built around the RP2040, from the RP2040/RP2350 family.

How big is the Beatsequencer PCB?

The Beatsequencer measures 200 × 150 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Beatsequencer?

178 components, from 47 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 Beatsequencer design files?

From the meh2481/beatsequencer 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 Beatsequencer design in my own project?

Yes, under the terms of its Unlicense license, which meh2481 chose for the repository.

Can I test firmware for the Beatsequencer without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.