SensorSnaps: Integrating Wireless Sensor Nodes into Fabric Snap Fasteners for Textile Interfaces
summary
SensorSnaps hides a complete wireless sensor node inside a snap cap: a nRF52 microcontroller, a 9‑axis IMU and a 12 mm PCB powered by a tiny battery (device weighs ~2.4 g). It secures to unmodified garments in ~71 seconds and detects tap, rotation and capacitive touch gestures, supports mesh networking, and drives a music controller and motion‑capture suit. Prototypes run about 45 minutes continuous and up to 4 hours standby with capacitive wake, showing the concept works with off‑the‑shelf snaps.
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chapters (18)
- 0:00Introduction to SensorSnaps
- 0:27Video demo of SensorSnaps
- 1:10Motivation for wearable interfaces
- 3:02How snap fasteners work
- 4:11Design requirements for SensorSnaps
- 4:34Previous work on textile electronics
- 6:53Key differences from prior art
- 7:14Electronics and components used
- 8:42Mechanical attachment mechanism
- 10:09Gesture detection capabilities
- 11:41Tapping and rotation gestures
- 12:25Capacitive touch sensing
- 13:12Power management and modes
- 14:15Music player application demo
- 14:56Motion sensing with multiple nodes
- 15:38Future improvements and directions
- 16:41Conclusion and applications
- 17:28Q&A on battery-less design
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