This Grove-ultrasonic sensor is a non-contact distance measurement module which is compatible with the Grove system. It’s designed for easy modular project usage with industrial performance.
Video available here
Ever lost something in a hole (your keys maybe ?), wanted to see inside a closed device or anything else where an endoscope might be useful (for the keys part, the included magnet &/OR hook is the best part) ?
In all those cases, this endoscope could have saved you :)
That product is just perfect to have around, just in case, or if you have something...
This a well designed, Arduino compatible mobile robot development platform,you can build it and program it easily with tons of published free codes. Compare with the last mobile platform, this one has a light body with mounting holes, you can add Variety of sensors to make it more interesting.