Shop OBEX P1 Docs P2 Docs Learn Events
QTI problem — Parallax Forums

QTI problem

HoffaHoffa Posts: 46
edited 2008-01-09 13:13 in BASIC Stamp
Hi

I´ve just bought the QTI-line-following-kit. I have connected 3 QTI as in the manual: www.parallax.com/Portals/0/Downloads/docs/prod/robo/QTILineFollow.pdf page 4. I have checked and double checked and I´m sure that everything is exact as in the picture. When I then try to execute the example program it wont work. I only get 000 except when all QTI sees black then I get 111. It sounds like there are some sort of short circuit but I can´t find it. If I disconnect one QTI the other two seems to look just fine (I can disconnect anyone of them). Please help me!

/Hoffa

Comments

  • Bruce BatesBruce Bates Posts: 3,045
    edited 2008-01-09 11:02
    Hoffa -

    A close-up picture of the wiring or a schematic sketched up from the wiring you have would be most helpful in trying to troubleshoot this problem. The more information you can give us, the better information you will get back in return.

    Have you modified the sample QTI line following program, or are you using one of your own design? If the latter, please also include your program by attaching it to you next posting. You can not use the Quick Reply facility if you want to use the Attachment Manager.

    Regards,

    Bruce Bates

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
  • HoffaHoffa Posts: 46
    edited 2008-01-09 13:13
    Hmm, now everything seems to works just fine... very wierd, have haven´t done anything with it since before.
Sign In or Register to comment.