Shop OBEX P1 Docs P2 Docs Learn Events
This may sound stupid but my right ir is not working... — Parallax Forums

This may sound stupid but my right ir is not working...

okonisfreeokonisfree Posts: 38
edited 2007-02-27 16:46 in Robotics
Ok, so a while ago the original ir led that came with the bow-bot burnt out. so i used another one instead. then it worked and i was happy and all. so then i had my boe-bot stored for a long time because i had other thigns to do. Then I decided I would work on it again but now the right ir led isn't working!

what's the problem? did i leave it too long or what?

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
~okonisfree


"When life gives you lemons...

SUCK IT UP!"

lol jk

Comments

  • Beau SchwabeBeau Schwabe Posts: 6,566
    edited 2007-01-23 23:16
    Could the polarity of your IR led be backwards? ...try swapping the pins. If you are using a current limiting resistor, it would almost be difficult to burn out the IR led.

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Beau Schwabe

    IC Layout Engineer
    Parallax, Inc.
  • jsmasterkingjsmasterking Posts: 35
    edited 2007-01-30 21:20
    I had the same problem. Left the robot for about 2 months and when I put it together it kept on turning left, after hours of debugging, I checked the IR using my digital camera and saw that the right one gave out only a faint signal while the other one was totally noticeable. I switched the polarities, the pins and the LEDs but nothing. I got mad and went to Radioshack and bought two new ones - for matching pairs.

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    ·on····· plane··········································, when catching ducks

    "In this house, we obey the laws of thermodynamics!"
    ··············································································^
    http://profiles.yahoo.com/jsmasterking
  • Aaqil KhanAaqil Khan Posts: 60
    edited 2007-02-01 12:58
    Hi,
    just a comment on your subject title - theres nothign stupid about the right IR not working !! It just goes on to prove that we dont live in a "perfect" world. It would, in fact, sound stupid (or suspicious rather) if things did·NOT stop working !! tongue.gif

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    E=mc^2
  • slamerslamer Posts: 52
    edited 2007-02-26 23:57
    One of the annoying things about infared is it's invisible to the human eye.

    I added the infared Led's and detectors to the Boe Bot and spent quite a bit of time trying to aim·and fine tune them.·I was using·the bend and guess meathod. Fortunately there is a simple relitively cheap way to see the unseen·light emmited from a·IR Led. Radio shack used to sell a IR test card but·I don't think they do anymore.

    But they still exsist. I think Parallax·might think about·selling something like this..... They do make the builders job easier when working with IR emmiters

    http://www.mcminone.com/product.asp?catalog_name=MCMProducts&product_id=72-6772

    http://www.newremotecontrol.com/IrDet.htm

    http://www.maxmax.com/DetectionCards.asp




    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    undefinedundefinedundefinedundefined

    Post Edited (slamer) : 2/27/2007 12:01:28 AM GMT
  • Bruce BatesBruce Bates Posts: 3,045
    edited 2007-02-27 07:23
    slamer -

    You can "see" infrared light with almost any digital camera or video camera, so the I/R test card is hardly necessary.

    Regards,

    Bruce Bates

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    <!--StartFragment -->
  • slamerslamer Posts: 52
    edited 2007-02-27 16:46
    That may be true but these tools only cost about $8.00-$25.00 and you can keep one in your wallet. Also they don't need batteries.·The card·can also be trimmed down to fit between small spaces like optical switch packages. That's pretty hard to do with a camera.·As an electronic tech I've found them to come in handy many times. Darn pesky invisible light anyways... [noparse];)[/noparse]

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    undefinedundefinedundefinedundefined
Sign In or Register to comment.