Abstract
The VABR-2.0 is a physical, buildable Multi-Modal Biopotential Acquisition and Adaptive Feedback System. It stabilizes biological signal acquisition by actively suppressing noise, drift, and interference while ensuring strict adherence to biomedical safety standards (IEC 60601-1).
In engineering terms, "Variable-Adaptive Bio-Resonance" is implemented as a High-Impedance Analog Front End (AFE) with Active Common-Mode Rejection and FPGA-based Adaptive Filtering. It captures weak biosignals (EEG, ECG, EMG, EOG) with high fidelity, processes them in real-time to remove artifacts (motion, muscle noise, power line hum), and provides safe, isolated feedback (visual, auditory, or haptic) for neurofeedback or physiological monitoring research.
This document provides the exact specifications, Bill of Materials (BOM), schematics, and safety isolation protocols to construct a prototype that achieves >100dB Common-Mode Rejection Ratio (CMRR), <1µV RMS input-referred noise, and reinforced galvanic isolation for patient safety.
Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Caldwell, Michael Victor Mr., "VABR-2.0: Variable-Adaptive Bio-Resonance Engine (Physical Prototype Edition) Date: 2026-07-29 Status: Open-Hardware • Builder-Grade • Test-Bench Ready", Technical Disclosure Commons, ()
https://www.tdcommons.org/dpubs_series/11224