Open Arsenal

The Smart Way to Harvest Every Step.

HarvestHub is an open-source biomechanical energy harvesting platform designed to transform human movement into usable electrical energy. By capturing otherwise recoverable mechanical energy generated during walking, running, and everyday activities, HarvestHub aims to create a new generation of wearable power technology. Its innovative approach focuses on maximizing energy recovery while prioritizing natural movement, balance, comfort, and an ultra-lightweight design. The goal is to develop an energy harvester that integrates seamlessly into everyday life without unnecessarily restricting mobility or increasing physical strain.

HarvestHub features an advanced modular architecture that supports energy harvesting from multiple joints, including the knee, ankle, and hip. Its design combines high-efficiency electromagnetic generators, optimized mechanical transmissions, intelligent engagement mechanisms, and motion-sensitive sensors to identify the most productive phases of movement. Adaptive harvesting algorithms regulate energy capture according to gait patterns, joint angles, movement velocity, and activity levels. Lightweight composite materials, compact components, ergonomic braces, anatomical alignment, and adjustable fittings help minimize bulk while maintaining stability and distributing weight naturally.

An intelligent power management system converts, regulates, monitors, and stores the harvested electricity through integrated charging electronics, DC-DC converters, and optional battery or supercapacitor storage. Features include real-time power monitoring, energy-per-step analytics, voltage and current measurements, configurable power outputs, USB-C connectivity, and expandable energy storage. Its software platform supports customizable firmware, gait analysis, automatic calibration, performance optimization, diagnostic tools, and historical energy production reporting. Safety is central to the design, with mechanical disengagement, quick-release mechanisms, electrical protection, thermal monitoring, and extensive biomechanical testing to help ensure that energy harvesting does not compromise natural movement.

Built around open-source innovation, HarvestHub provides an extensible foundation for researchers, engineers, makers, and contributors to collaborate on improving biomechanical energy harvesting. Its development ecosystem encompasses mechanical CAD files, electronic schematics, firmware, bills of materials, 3D-printable components, assembly instructions, testing procedures, and performance benchmarks. The long-term vision is to push the boundaries of wearable energy generation through continuous improvements in energy conversion, weight reduction, comfort, balance, and biomechanical efficiency. HarvestHub aims to make personal kinetic energy harvesting more accessible, practical, and adaptable, turning everyday movement into an opportunity to generate power.

This specification is released under the AGPL-3.0+ and is free to use with required Section 7 attribution. Organizations seeking attribution-free deployment may obtain a Specification Branding License, with fees based on use and deployment scope.