What to make a device for examining cracks in the walls?

Question

Arduino

Good afternoon
Please let me know.
Is it possible to build a device for checking wall defects on arduino or raspberry pi?
What technologies can be used?
I have come across cheap devices for ultrasonic testing of metal thickness and echo sounders for fishing.
I also saw the work of expensive thermal imagers.
Is there a not very costly way to get a device for examining a residential apartment?
You need to look under the wallpaper and plaster.

Answer 1

Arduino and raspberi are just numbers. They do not know how to work with echo sounders and other things. This is what the sensors do. Which have connection interfaces.
Respectively. Look for the sensors you need, look at their interfaces and for their compatibility with the raspberry / arduino. Compatible - yes. Incompatible - extremely difficult.

Answer 2

An example of using an ultrasonic sensor with Arduino (MIPT course).

Answer 3

I think that this device has already been made by Google and these are their google glass glasses, it remains only to file a special application, although I think that there is already something similar for builders and architects)

Answer 4

Cracks that pose a threat under the wallpaper are not
usually hidden wallpaper is the best indicator