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Author Topic: New...Sonar  (Read 3109 times)

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Offline Private reid2Topic starter

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New...Sonar
« on: May 09, 2008, 03:24:31 AM »
Hi, I have been willing to built a robot for a while now due to my boyfriend, whos doing the $50 robot have desided to join SoR.

But i have a question to do with sonar.

If i was to make a sonar bot would it have to have a bumper switch so the robot new if it had made it to the obstacle, because doesn't sonar only detect objects but doesn't know how far away the are?
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Offline Private Reid

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Re: New...Sonar
« Reply #1 on: May 09, 2008, 03:27:21 AM »
omg!

you used my name!

i didn't know that you were going to join!

what is the world coming to!

Girlfriends not telling you when they are going to make a SOR user!

 :o
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Offline TrickyNekro

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Re: New...Sonar
« Reply #2 on: May 09, 2008, 03:37:17 AM »
Hehehe,
Sounds like nice situation here mate...
If she is your girlfriend you are pretty lucky...

You see it's more possible for the man to do alike not the gf...

Cheers!!!
Lefteris
For whom the interrupts toll...


P.S. I've been inactive for almost a year... Don't give promises but I'll try to complete my tutorials. I'll let you know when..

Cheers!

Offline superchiku

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Re: New...Sonar
« Reply #3 on: May 09, 2008, 04:25:07 AM »
lololol what a scene now thats a good girlfriend man ... u are very lucky and its nice to see that ROBOTS SPREAD LOVE or should i say SOR SPREADS LOVE
JAYDEEP ...

IT AND ROBOTICS ENGINEER

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Offline Steve Joblin

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Re: New...Sonar
« Reply #4 on: May 09, 2008, 07:23:16 AM »
Man... you are one luck "couple"!

To answer your question, the answer is that sonar actually does tell you how far away the object is!  that is one of the great things about it!  What sonar module are you planning on using?

Oh yeh, almost forgot to ask.... do you have a sister :)  wish my wife liked robots :(

Offline AndrewM

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Re: New...Sonar
« Reply #5 on: May 09, 2008, 07:54:18 AM »
Sonar will tell you a distance (not 100% accurate), but it is widespread so you won't know where the object is in relations to the beam, just that it is in the "cone" someplace.  Sonar also generally has a minimum range, so sometype of bumper would be needed, whether that bumper is short range IR, or a electromechanical switch, or photodectors, etc is up to you.
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Offline Asellith

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Re: New...Sonar
« Reply #6 on: May 09, 2008, 12:04:32 PM »
Haha Private Reid just became the target of envy for most of the members of SOR.

I wonder how many people go to there significant others tonight and try to get them to build a robot with them as "Quality Time" :)

Of course I do not have a significant other at this moment but I may have to head over to the other university in town and scope out there engineering department for girls.
Jonathan Bowen
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Offline Private reid2Topic starter

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Re: New...Sonar
« Reply #7 on: May 09, 2008, 09:57:05 PM »
ok, thanks!  ;D

Quote
Oh yeh, almost forgot to ask.... do you have a sister   wish my wife liked robots

lol
And no I got an older brother...(unlucky)

Quote
You see it's more possible for the man to do alike not the gf...

(almost killed myself laughing...)

Quote
I wonder how many people go to there significant others tonight and try to get them to build a robot with them as "Quality Time"

LOL
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Offline Admin

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Re: New...Sonar
« Reply #8 on: May 18, 2008, 10:13:56 AM »
A mechanical engineer I had dated for a long time signed up here too . . . she read every single post of mine . . .

(so be careful what you say! :P)

Offline Private Reid

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Re: New...Sonar
« Reply #9 on: May 19, 2008, 04:08:45 AM »
every single post!  :o

Every 4000 and what not posts!!!  :o :o
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Offline Brandon121233

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Re: New...Sonar
« Reply #10 on: May 19, 2008, 01:54:30 PM »
About your Sonar, I use Sonar for my robot Walbot and I love it, I use the The LV-MaxSonar-EZ1 http://www.maxbotix.com/Maxbotix__Buy_Now.html#Order_EZ1 its really easy to use and it has a great range. It outputs the distance in one inch increments and the interface output formats included are pulse width output, analog voltage output, and
serial digital output. It basically does all the calculating and timing work usually necessary for you.
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Offline Private reid2Topic starter

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Re: New...Sonar
« Reply #11 on: May 20, 2008, 04:08:32 AM »
it's such a shame that there all so expensive...

like $22... ::) THATS EXPENSIVE FOR ME

and it's also in American (i live in Australia!) so postage is lots and...it all adds up!

Im just not to sure...

Like to buy 4 Hitec 311 servo's is $60 EXCLUDING POSTAGE almost $80 with the postage

It's really hard for us ozzy's
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Offline AndrewM

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Re: New...Sonar
« Reply #12 on: May 20, 2008, 09:56:44 PM »
Out of curiousity, why can't you buy straight from Japan?  I would imagine the prices would be cheaper, as well as the shipping.

We may have cheap electrical components in the US, but you have vegemite (and I am almost out of what I picked up on my trip in Dec)
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Offline Private Reid

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Re: New...Sonar
« Reply #13 on: May 21, 2008, 02:29:59 AM »
well,

heres a deal...

you post me a few servo's and ill post you some Vegemite... ;)

but about japan... i hadn't thought of that...

any1 know of a site?
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Offline AndrewM

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Re: New...Sonar
« Reply #14 on: May 21, 2008, 09:48:23 PM »
Here's some I found in asia.  Shipping to US is pretty cheap, so I imagine shipping to australia to be cheaper.

http://www.robotstorehk.com/motors/motors.html

http://www.rt-net.jp/index.php?main_page=index&cPath=108&language=en  - make sure you tack on "&language=en" without the quotes to any page if it doesn't have it already.  I have no idea what the prices are, I didn't bother to do a conversion.

http://www.rcmart.com.tw/

blog: www.iamwhen.com
Saving the world from humanity one robot at a time.

 


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