How to calibrate your iPhone's brightness and motion sensors if they aren't working properly

If your iPhone's sensors aren't working correctly, you may need to calibrate them. Here's how to calibrate an iPhone's brightness and motion sensors.
The Verge

Kano’s Motion Sensor Kit: gesture controls, for kids!

Gesture-controlled gadgets were all the rage at CES back in January. I’m still not convinced it’s a good way to change TV channels, but it can’t hurt to learn how to program for a motion sensor.
The Verge

Here’s the tech that could turn millions of Zigbee light bulbs into motion sensors with a single update

Sensify is a new technology that can turn Zigbee switches, bulbs, and plugs into sensors with a firmware update. This could be how Philips Hue will bring ambient sensing to its smart lights. Sensify ...