Discussion in 'General Electronics Chat' started by one 2 3, Jun 25, 2010.
search after distance meter
Laser, or sound? Does it matter?
Laser will be quite accurate, but a 3 meters, you can get pretty accurate with ultrasonics.
Do a search for "rangefinder circuit".
Here are some promising results:
What is the minimal distance yo need to measure?
If you want to add an ultrasonic range finder to a project:
If you want to build your own ultrasonic range finder:
Build your own Laser range finders:
Buy a laser range finder:
Or just do what I did and google:
"range finder kits"
"ultrasonic range finder"
"laser range finder"
@one 2 3 : Again, what minimal distance do you need to detect? There are even cheaper laser sensors than those in the above link, but we need to know the minimal distance to give a good recommendation.