Quadrant is a human-computer interface based on an array of distance sensors. The hardware consists of 4 time-of-flight sensors and is specifically designed to detect the position, velocity, and orientation of the user’s hand in free space. Signal processing techniques are used to recognize gestures and other events, which can be mapped to a variety of musical parameters in software. We have developed Quadrant as an open hardware circuit board which acts as a USB controller to a host computer. This campaign will support the development of a fully hackable bootloader and control voltage (CV) output for integration with analog synthesizers.

Quadrant Demo

Produce Moving Art, Music, and More

What can Quadrant do? Make computer-produced music, control your DAW, interact with DJ software, and play with Max MSP and Pure Data. Or think visually for unique VJ control, LED lighting, and video synthesizers. Play with gesture recognition, swipe left, swipe right, trigger events with beam crossings and more. The utility of Quadrant is limited only by your creativity.

No bigger then a playing card

Features & Specifications

• 4x VL6180x time-of-flight distance sensors
• 10" detection range with 1 mm precision
• 30 Hz sample rate (all channels)
• ARM Cortex-M0 microcontroller for on-board signal processing
• USB serial interface
• Control Voltage (CV) output 0 to +5 V for analog synthesizers (Eurorack, etc.)

Fully Open Source

• Board schematics and layout
• Firmware
• Software

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