Electrick: Low-Cost Touch Sensing on Arbitrary Surfaces Using Electric Field Sensing
summary
Electrick uses electric field tomography over a sprayed or molded conductive layer plus sparse electrodes to add touch to irregular objects; prototype hardware (ARM Cortex-M4, 200 kHz excitation, 4 MHz ADC, multiplexers) runs at roughly 180 FPS and costs about <$1 per ft². Evaluation collects ~13,000 points across 8/16/32 electrodes and multiple materials, showing 99% touch/no-touch accuracy and about 1 cm average localization error on varied surfaces (steering wheel, 3D‑printed bangle, molded toys).
AI-written summary · about
chapters (8)
- 0:00Introduction and motivation
- 2:05Demo and overview
- 4:18Sensing principles
- 5:54System implementation
- 6:54Evaluation and user study
- 9:40Applications and materials
- 13:24Limitations and conclusion
- 14:26Q&A session
related talks
19mPulp Nonfiction: Low-Cost Touch Tracking for Paper
16mPaintable IOT: Scalable sensing
06mKnitted Sensors: Designs and Novel Approaches for Real-Time, Real-World Sensing
20mGelTouch: Localized Tactile Feedback Through Thin, Programmable Gel
20mDextrES: Wearable Haptic Feedback for Grasping in VR via a Thin Form-Factor Electrostatic Brake
33mBuilding "learn to touch type" glove with ...
23mElectricItch: Skin Irritation as a Feedback Modality
31mHybrid Body Craft