We had a fun night at Hacker Dojo on the couches. Steve Caldwell brought his co-founder, Patrick Henshaw in town from Cincinnati. Steve presented on how we as developers can make use of the sensors on the Apple Watch to build unique apps.

App Ideas for Sensors

  • space-based shooting game that utilized the touch and pressure sensors,
  • pong with the digital crown
  • integrated payments for city bicycling stations that include directions to the nearest bike pickup location


  • Features of the Apple Watch
    • MagSafe charging
    • Taptic engine for haptic feedback
  • Sensors on the Apple Watch
    • Heart rate sensor
    • Force touch (hard press) sensor
    • Digital crown for scrolling (twist) and selecting (press)
    • NFC, Apple Pay
    • Accelerometer
  • Code samples
    • Accelerometer
    • Location
    • Camera control
    • Heart rate sensor