Ball

Maker	Mountjoy Modular
Type	Bluetooth LE gyroscope remote with a Eurorack base module that outputs three CVs
Mounting	SMD
Width	4 HP
License	Proprietary (No hardware licence published)
Difficulty	🌋 Fine-pitch SMD

A handheld sphere holds an STM32WB35 and an L3GD20 gyroscope on a Li-Po battery. The 4HP base module receives over BLE and converts the three axes into control voltages.

Documentation

• Bill of materials (BOM)
• Schematic
• Fabrication files (PCBA-ready)

Links

• Source / files on GitHub
• Maker page

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This is a third-party open-source design, listed here as a build reference. Specs are researched from public sources; check the source repo and store for the current BOM, panel, and revision before ordering parts. Corrections welcome.

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