2877Views14Replies

Author Options:

Laser rangefinder Answered

Hi, I would like to put together a laser rangefinder, with LCD display, that can measure distance to the objects out to about 600y, with accuracy of +/- 1 y. I know absolutely nothing about electronics. Can somebody tell me what components would I need? regards, dejan

14 Replies

user
mzungu (author)2012-10-22

http://www.eng.buffalo.edu/ubr/ff03laser.php

Select as Best AnswerUndo Best Answer

user
mzungu (author)2012-10-22

https://sites.google.com/site/todddanko/home/webcam_laser_ranger

Select as Best AnswerUndo Best Answer

user
Ivraine (author)2007-11-15

You have a great idea! I think it needs a little revising though... like instead of LCD, use LED, and you should use an ultrasonic sensor. If you want an ultrasonic sensor go to digi-key, or jameco.com, and you can find LED's there to, no ideas on how to do it though, sorry. I think you should, instead of making your own, get a crappy $30-250 range finder, rip it apart, find how it works, and then take out the range finding stuff and make it do something else as well.

Select as Best AnswerUndo Best Answer

user
mgalyean (author)Ivraine2011-02-20

Ultrasonic will not go out to 600 yards. That is why commercial units use laser. Laser is more accurate also. This is not a project I'd choose as off the shelf units are surely much less expensive than a home brew one-off in this territory. Now hacking off the shelf stuff might be fun.

Select as Best AnswerUndo Best Answer

user
COROVICD (author)2007-10-16

thanks guys, I think I'll start with LED flashlight. What would be a good beginner's next project involving those little black chips with some logic inside? Those with many legs. I'll need to understand them as well. cheers, dejan

Select as Best AnswerUndo Best Answer

user
whatsisface (author)2007-10-15

If you know nothing about electronics, you probably won't be able to rig up and LCD display, never mind a laser rangefinder.

Select as Best AnswerUndo Best Answer

user

Sorry, I don't like to discourage people, but I'm afraid whatsisface is right. That is far too ambitious a project for someone without any basic electronic knowledge. Cheers, Pat. Pending

Select as Best AnswerUndo Best Answer

user
COROVICD (author)Patrick Pending2007-10-15

Ok, Everybody has to start somewhere. I am a programmer so I have to work out, how things work, all the time. I know that I need emitter (laser) + receiver (sensor) + timer + processor (to convert time into distance) + LCD ( there are instructions here on this web site ) Just need somebody to select components for me. regards, dejan

Select as Best AnswerUndo Best Answer

user
Patrick Pending (author)COROVICD2007-10-15

Everybody has to start somewhere

That's what I am getting at, a laser rangefinder is definitely not the place to start.

I am a programmer so I have to work out, how things work, all the time.

If I was a brain surgeon (without any previous programming knowledge) and I wanted to write a computer based payroll system, what would you advise?

In order to construct something complex (in any field) you need to understand all the simple basic things; otherwise, they would trip you up every step of the way! Without experience you just wouldn't know where to look to fix even minor problems. It really pains me to be so negative, I would much prefer to encourage you, but it is the truth.

Cheers,

Pat. Pending

Select as Best AnswerUndo Best Answer

user
Goodhart (author)Patrick Pending2007-10-15

Pat, look at it this way, you ARE encouraging him to start at the beginning, rather then start with a project WAY too complicated, wherein certain failure would occur. Getting a good handle on the basics of electronics and some solder practice will put him on the road to success rather than failure.

Select as Best AnswerUndo Best Answer

user
COROVICD (author)2007-10-15

ok guys, you win. can you advise me on a good project to start with, that is similar to rangefinder, in some way? cheers, dejan

Select as Best AnswerUndo Best Answer

user
Patrick Pending (author)COROVICD2007-10-15

Well a ready made kit would give you some knowledge of components and also electronic construction. One idea, in the same vein, might be an ultrasonic obstacle locator. Cheers, Pat. Pending

Select as Best AnswerUndo Best Answer

user
royalestel (author)COROVICD2007-10-15

How about a "knight Rider" lights kit. It's reasonably easy. Wait, do you know how to solder yet? Which, if you don't, I'd recommend making an LED flashlight, like this.

It's the first project I soldered together.

Select as Best AnswerUndo Best Answer