Bela Gem Multi is now also available for purchase from Mouser. We greatly appreciate every direct sale made through our shop, but please note that Mouser may be the faster option if you can't wait to get your board. Note that Starter Kits are only available directly from us.

Change how you create with sensors and sound: Bela Gem is an open, real-time platform for expressive audio systems, powered by PocketBeagle 2.

Bela Gem Multi is a high-performance, open hardware platform that turns the PocketBeagle 2 into a powerful, multi-channel platform for real-time audio and physical computing. With expanded audio I/O, multiple DC-coupled analog outputs, and rich digital connectivity, it’s designed for building advanced instruments, spatial audio systems, interactive installations, and complex sensor-driven environments where precision and scalability matter.

Core Capabilities

• Multi-channel audio 10ch I/O for complex audio routing and spatial systems
• Low-latency real-time processing using the Bela software environment
• DC-coupled analog outputs for control voltages, modulation, and hybrid audio/CV systems
• Expanded analog and digital I/O for sensors, gates, and triggers
• USB host and device support for MIDI, networking, and peripherals
• Open-source hardware and software, designed for hacking, modification, and research

What You Can Build

• Multi-channel and spatial audio systems
• Advanced digital and hybrid modular synthesisers
• Interactive installations and large-scale sound environments
• Sensor networks and distributed control systems
• Research, teaching, and experimental real-time audio platforms

What’s Included

The Starter Kit includes everything you need to power up and start building with Bela Gem Multi straight out of the box.

Technical Specifications

Audio

• Inputs: 10 channels, up to 24-bit / 96 kHz
• Outputs: 10 channels, up to 24-bit / 96 kHz
• DC Coupling: optional for 8 of the output channels

Analog I/O

• Inputs: 8 channels, 16-bit / 24 kHz
  

Digital & Connectivity

• GPIO: 16 digital I/O (3.3 V logic)
• USB Device: USB Type-C
• USB Host: USB-A (WiFi, Bluetooth, Ethernet, USB MIDI)
• I²C: Dedicated pins and Qwiic connector

Power

• Input: 5 V (battery powered supported)

Mechanical

• Dimensions: 70 x 58 mm
• Height: 22 mm, 32 mm with extension boards attached

Compatibility

• Designed exclusively for PocketBeagle 2

Software & Development

Bela Gem Multi runs the Bela web-based IDE, giving you a fast, browser-based workflow for developing real-time audio and interactive systems directly on the board. You can program in C++, Pure Data, SuperCollider, and other supported environments, with access to a large library of examples, tutorials, and open-source tools. The platform is designed for both rapid prototyping and long-term development, supported by an active community and extensive documentation.

Need a Smaller, Simpler Setup?

For compact projects and stereo-focused systems, take a look at Bela Gem Stereo.