How can I use my smartphone as a scanner?

Episode 937 (1:53:12)

Robert from Truckin' on the roads

Robert would love to mount a camera on his Semi so he could have a live feed as he drives. Leo says that there's a camera out there that records and he could save out the last 30 seconds in case he hits another car.

Robert also needs a portable document scanner that can connect to his Samsung Galaxy II. Leo says that there's great scanning apps that use the camera in the phone to work. Cameras are so good in phones these days, scanners aren't really needed.