Mini toys on MSN22d
Navigating a LEGO Motion Tracker Without Getting Hit
A LEGO Mindstorms NXT system is transformed into a motion-tracking challenge with ultrasonic sensors guiding its precision. Initially, the tracker follows horizontal movement, refining sensor ...
Hackaday3mon
A Look Inside IKEA’s Vallhorn Motion Sensor Teardown
[Circuit Valley] has an IKEA Vallhorn motion sensor for a teardown, it’s as you might expect, a passive infrared sensor (PIR) sensor coupled with a Zigbee interface. Inside the ultrasonic welded ...