2 layers304.2 × 124.6 mm
Beat sequencer choc
GuavTek/beat_sequencer
A MIDI sequencer for percussion using a RP-PICO, WS2812 LEDs, and cherry style keyboard switches
346 parts
2 layers304.2 × 124.6 mm
Beat sequencer
GuavTek/beat_sequencerA MIDI sequencer for percussion using a RP-PICO, WS2812 LEDs, and cherry style keyboard switches
- Size
- 304.2 × 124.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 346
- Nets
- 202
- Pads
- 1,188
- Tracks, vias
- 1,741, 435
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 13 Jun 2025
- Updated
- 24 Feb 2026
Overview
Beat sequencer is an open-source printed circuit board by GuavTek, from the GuavTek/beat_sequencer repository on GitHub. It is a 2-layer board of 304.2 × 124.6 mm with 346 parts on 202 nets, routed with 1,741 tracks and 435 vias.
It is built around the WS2812B and RASPBERRY PI PICO 2. Its parts include 160 diodes, 82 switches, 80 capacitors, 14 resistors and 9 transistors. It belongs with the RP2040 and RP2350 boards of this library.
Main components
2README
README.mdA MIDI sequencer for percussion using a RP-PICO, WS2812 LEDs, and cherry style keyboard switches
Parts
346| Qty | Value | Footprint | References |
|---|---|---|---|
| 80 | 100n | Capacitor_SMD:C_0603_1608Metric | C1, C2, C10, C11, C12, C13, C14, C15, C16, C17, C18, C19, C20, C21, C22, C23 +64 |
| 80 | D_Schottky | Diode_SMD:D_SOD-323_HandSoldering | D100, D101, D102, D103, D104, D105, D106, D107, D108, D109, D110, D111, D112, D113, D114, D115 +64 |
| 80 | SW_SPST | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23, SW24 +64 |
| 80 | WS2812B | CustomLib:LED_SK6812_MINI_REVERSE | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +64 |
| 13 | 10k | Resistor_SMD:R_0603_1608Metric | R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14 |
| 9 | 2N7002 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9 |
| 1 | NC | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | RaspberryPi_Pico2 | Module:RaspberryPi_Pico_Common_SMD | A1 |
| 1 | RotaryEncoder_Switch_MP | Rotary_Encoder:RotaryEncoder_Alps_EC12E_Vertical_H20mm | SW74 |
| 1 | SW_SPST | Button_Switch_THT:SW_PUSH_6mm | SW1 |
Questions
How big is the Beat sequencer PCB?
It measures 304.2 × 124.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Beat sequencer use?
346 parts, built around the WS2812B and RASPBERRY PI PICO 2. 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 Beat sequencer KiCad files?
From the GuavTek/beat_sequencer repository on GitHub, at the commit this page was made from: the board is hardware_mx/beat_sequencer.kicad_pcb and its schematic hardware_choc/beat_sequencer_choc.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Beat sequencer design in my own project?
Its repository states no licence, so its author keeps all rights: ask GuavTek before reusing the design.
More from GuavTek/beat_sequencer
1Similar boards
- 2 layers100.3 × 69.9 mm
HDD Synth Prototype MK4
MaverickUK/HDDSynth
Recreate the sound of mechanical spinning HDDs on retro PCs that use a solid state drive
46 parts16 - 12 layers66 × 104.1 mm
Car
XLNC-APEX/WRO_FE_2026_NATIONAL
XLNC APEX team's repository for WRO Future Engineers 2026 national level. Making a cool car.
23 parts2GPL-3.0 - 4 layers55.9 × 111.8 mm
Pico ButtonBoard v1
RealtimeRoboticsGroup/electrical
This project is open-source hardware and is licensed under the Solderpad Hardware License v2.1 (the "License"), which is a permissive license based on the Apache License, Version 2.0.
212 parts1 - 2 layers85 × 55 mm
Bluetooth audio tx
Unosoluciones/De-RCA-a-BT
Driver para conectar por bluetooth cualquier dispositivo con salida RCA
13 parts1 - 4 layers60 × 60 mm
- 4 layers95 × 57.4 mm
- 2 layers151 × 94 mm
LED matrix Error-2026
Jed0vcela/LED-matrix-Error-2026
Kapesní zařízení s LED maticí 32×16, postavené na Raspberry Pi Pico (RP2040) s MicroPythonem. Samotné zařízení nabízí přes 20 vestavěných her a pomůcek; víc zařízení lze propojit řetězcem po UART pro hry pro dva hráče a…
639 parts - 4 layers220 × 111.8 mm
MetSensorSuiteEmbeddedFirmware
Lowcost-Radiosonde-Research-Project/MetSensorSuiteEmbeddedFirmware
This is the source code that runs on the Sensor Suite pico which handles reading from sensors, calculating needed products and building data packets
91 partsBSD-3-Clause