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Phys.org — Technology · September 18, 2026 · On the brief until October 2, 2026

Bio-inspired whiskers enable tiny drones to navigate in darkness using touch

RoboticsMechanical EngineeringBiology
THE AI ANGLE
Executing real-time tactile perception and autonomous flight decision-making onboard a microcontroller

Researchers at Delft University of Technology developed rodent-inspired artificial whiskers that allow sub-100-gram drones to navigate, map unfamiliar spaces, and avoid obstacles in darkness using touch. By pairing base pressure sensors with a lightweight 34-kilobyte processing pipeline, the system filters out propeller-induced turbulence to calculate contact depth with millimeter precision. This work demonstrates that tactile perception can overcome severe size, weight, and power limitations that typically render visual sensors unviable in low-visibility flight environments.

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THE TEACHING ANGLE
This research provides a compelling case study on balancing size, weight, and power constraints by replacing computationally intensive vision algorithms with bio-inspired physical embodiment and low-memory signal processing.

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