This reference design uses capacitive sensing to detect a kicking motion indicating the user's desire to activate a power lift-gate, power trunk, or power sliding door on an automobile. Capacitive sensing allows flexible sensor placement and a large kick-sensitive zone. The high-resolution and low power dissipation make this design applicable to automotive hands-free closure systems where gesture detection and low current from the battery are critical.
Features
- Two high-resolution capacitive sensors
- Operates from 12V automotive battery
- Detects kicks for distances up to 50cm
- Low quiescent current
- Simple microcontroller interface
- This reference design is tested and includes hardware, test results, and a getting started guide