Restricting motion sensor access – Smartphone manufacturers should introduce permission-based access for motion sensors. Randomized keypad layouts – Shuffling the keypad layout for PIN entry ...

Sensify is a wireless network sensing (WNS) technology developed by Ivani that can turn mains-powered Zigbee devices into motion sensors for controlling your lights with just a firmware update ...

As an example, [Circuit Valley] has an IKEA Vallhorn motion sensor for a teardown, it’s as you might expect, a passive infrared sensor ... but another mystery 8-pin chip is more elusive.