Create Music from Plants with the Biodata MIDI Interface

The Biodata MIDI Interface is a groundbreaking open-source device that transforms electrical signals from plants into musical notes, bridging the worlds of nature, art, and technology. This innovative tool allows users to explore dynamic soundscapes by converting fluctuations in galvanic conductance into MIDI or control voltage (CV) data. Currently in its pre-launch phase on Crowd Supply, the Biodata MIDI Interface promises a versatile platform for musicians, biohackers, and educators alike, offering endless creative possibilities.

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How the Biodata MIDI Interface Works

The Biodata MIDI Interface measures electrical fluctuations in plants or human skin using attached electrodes. These fluctuations, known as galvanic conductance, are then processed and converted into MIDI notes or CV signals, creating a seamless connection between biology and music.

The device features USB Type-C and 3.5mm TRS jack outputs for MIDI signals, allowing it to interface with computers and synthesizers. Additionally, its monophonic CV output connects directly to modular synthesizers, making it ideal for crafting experimental compositions.

A jog wheel enables easy adjustment of sensor sensitivity, ensuring accurate data capture. The device comes pre-configured with several musical scales, including major, minor, and pentatonic, but its open-source nature allows users to modify scales and outputs to suit their creative needs.

Biodata MIDI Interface

Features and Hardware Overview

At the core of the Biodata MIDI Interface is the ATMega32u4 processor, ensuring efficient signal processing. It incorporates an LM555 timer in a stable multivibrator configuration for precise galvanic conductance measurements. To minimize interference, it uses the Analog Devices ADuM 5028 for galvanically-isolated power, ensuring clean and reliable outputs.

The compact, USB-powered design makes the device highly portable and suitable for installations. Encased in a minimalist 3D-printed enclosure, it combines functionality with aesthetic appeal, catering to musicians and makers looking for an easy-to-use tool.

Designed with accessibility in mind, the firmware is built using the Arduino IDE, allowing for easy updates and customization. The PCB was created with KiCAD, while the enclosure was designed using FreeCAD. All design files are available on GitHub, promoting a collaborative and open development process.

Creative Possibilities with the Biodata MIDI Interface

For Musicians and Artists: The Biodata MIDI Interface opens the door to creating unique soundscapes and experimental music. By using plant-generated signals as a foundation, users can craft ambient tracks, drones, or layered compositions. With its CV output, it integrates seamlessly with modular synthesizers for even more creative control.

For Education and Biohackers: This device is an excellent tool for demonstrating the intersection of biology, technology, and art in educational settings. Biohackers can use it to explore and visualize galvanic signals, offering new perspectives on how living organisms interact with their environment.

Dynamic Installations: The interface also serves as an inspiring foundation for dynamic installations. By responding to environmental changes or human interaction, it creates immersive experiences that merge sound and nature in real time.

Challenges and Future Updates

One of the anticipated features for the Biodata MIDI Interface is a desktop application that will make configuring the device and updating firmware more straightforward. While this app is still in development, it promises to enhance the user experience by providing an intuitive interface for customization.

As the project is in its pre-launch phase, potential backers are encouraged to sign up for updates on Crowd Supply. Monitoring the progress of features like the desktop app and hardware refinements will ensure an informed decision when supporting the project. Community feedback will also play a crucial role in shaping its final form.

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