

Blocknote
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.mdDigital 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

PCB Design

Project Structure
- /Hardware: KiCad PCB and schematic files
- /Firmware: CircuitPython source code
- /3D_Models: Minecraft-style cube enclosure files
Created by Anis.
Parts
9| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | Conn_01x02 | Connector_PinHeader_2.00mm:PinHeader_1x02_P2.00mm_Vertical | J8, J9 |
| 2 | ir | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | J2, J3 |
| 1 | Alim_M38 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J1 |
| 1 | HP DROITE | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J6 |
| 1 | HP GAUCHE | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J7 |
| 1 | XIAO-RP2040-DIP | XI:XIAO-RP2040-DIP | U1 |
| 1 | screen | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J5 |
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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