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2 layers57.3 × 66.3 mmBlocknote, the printed circuit board in 3D

The Digital Note Block is a gesture-controlled Bluetooth speaker inspired by Minecraft. It uses a XIAO RP2040 and a MH-M38 audio module to deliver wireless sound without any physical buttons.

Size
57.3 × 66.3 mm
Copper layers
2
Thickness
1.6 mm
Parts
9
Nets
19
Pads
49
Tracks, vias
63, 0
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
4 Apr 2026
Updated
4 Apr 2026

Overview

Blocknote is an open-source printed circuit board by ANYplays77, from the ANYplays77/noteblock repository on GitHub. It is a 2-layer board of 57.3 × 66.3 mm with 9 parts on 19 nets, routed with 63 tracks and 0 vias.

Its parts include 8 connectors and 1 IC. It belongs with the audio and music and radio and wireless boards and the RP2040 boards of this library.

README

README.md

Digital Note Block

A touchless Bluetooth speaker inspired by Minecraft, controlled by hand gestures.

Concept

The Digital Note Block uses two infrared sensors to detect hand movements instead of physical buttons.

  • Left sensor: Previous track / Volume down
  • Right sensor: Next track / Volume up
  • OLED screen: Displays status and animations

Hardware

The project uses a custom PCB designed with the following components:

  • Controller: XIAO RP2040
  • Audio: MH-M38 Bluetooth Module (3W Stereo)
  • Sensors: 2x IR Obstacle Sensors
  • Display: I2C OLED 128x64

Electronic Schematic

Schematic

PCB Design

PCB

Project Structure

  • /Hardware: KiCad PCB and schematic files
  • /Firmware: CircuitPython source code
  • /3D_Models: Minecraft-style cube enclosure files

Created by Anis.

Parts

9
QtyValueFootprintReferences
2Conn_01x02Connector_PinHeader_2.00mm:PinHeader_1x02_P2.00mm_VerticalJ8, J9
2irConnector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_VerticalJ2, J3
1Alim_M38Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_VerticalJ1
1HP DROITEConnector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_VerticalJ6
1HP GAUCHEConnector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_VerticalJ7
1XIAO-RP2040-DIPXI:XIAO-RP2040-DIPU1
1screenConnector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_VerticalJ5

Questions

How big is the Blocknote PCB?

It measures 57.3 × 66.3 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Blocknote use?

9 parts. 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 Blocknote KiCad files?

From the ANYplays77/noteblock repository on GitHub, at the commit this page was made from: the board is NOTEBLOCK-V.1/PCB/blocknote.kicad_pcb and its schematic NOTEBLOCK-V.1/PCB/blocknote.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Blocknote design in my own project?

Its repository states no licence, so its author keeps all rights: ask ANYplays77 before reusing the design.

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