Urgent !! -run a motor for 5 seconds after receiving signal

Discussion in 'Homework Help' started by diljot5394, May 9, 2013.

  1. diljot5394

    Thread Starter New Member

    May 9, 2013
    5
    0
    Hello everyone,
    Firstly, i agree, i am a newbie and dont do much about circuits
    I need some help urgently please,
    i need a circuit to run a dc motor for 5 seconds when received signal from ir sensor , and stops after 5 seconds , and doesnot starts until second signal received

    please reply soon i need the circuit urgently

    THANKS IN ADVANCE
     
  2. kubeek

    AAC Fanatic!

    Sep 20, 2005
    4,670
    804
    If it is so urgent that you need to post the thread twice and put Urgent!!! in the trhead title, why don´t you go on the internet and find someone who will do it ASAP for you, of course for some nice sum of money?
     
  3. diljot5394

    Thread Starter New Member

    May 9, 2013
    5
    0
    actually i have to use this in a science project and give it a home made look
    without any proffessional
    can u please provide me a circuit diagram
    ir should be the simplest
     
  4. MrChips

    Moderator

    Oct 2, 2009
    12,449
    3,365
    As a rule, we don't respond to urgent requests, unless it is something like

    "my fingers are stuck in the CD bay and can't get them out!!!"

    or

    "URGENT: my wife is about to toss my computer out the window, I need someone to catch it!!!"
     
    Last edited: May 9, 2013
  5. Eric007

    Senior Member

    Aug 5, 2011
    1,044
    33
    This reminds me the days...when I was still a *student* and always in panic mode...:D
    From your first post we can tell that you haven't done any researches whatsoever...but sounds like a nice little project!

    Gudluck! (that's what people like to say!)
     
  6. KMoffett

    AAC Fanatic!

    Dec 19, 2007
    2,575
    230
    Motor voltage? Motor current? LM555 monostable!

    Ken
     
  7. ramancini8

    Member

    Jul 18, 2012
    442
    118
    This is not urgent care!
     
  8. wayneh

    Expert

    Sep 9, 2010
    12,153
    3,059
    Look up (on this site) circuits using the 555 timer IC. The one you want is called a "one shot" or a monostable multivibrator.
     
  9. bertus

    Administrator

    Apr 5, 2008
    15,649
    2,348
    Helllo,

    I merged the threads and moved the new thread to the momework section, as it is a project.
    I deleted the excess in posts.

    Bertus
     
  10. diljot5394

    Thread Starter New Member

    May 9, 2013
    5
    0

    can you please provide me simple circuit diagram with proper requirements?
    i would be very thankful


    all other mates,it is seriously urgent
     
  11. kubeek

    AAC Fanatic!

    Sep 20, 2005
    4,670
    804
    Here you are http://lmgtfy.com/?q=555+monostable
    Is so hard to use some goddamned search engine? I remember the times when people were really grateful that something like a search engine even existed, today people are too lazy to use it by themselves and need to ask others to do it for them...
     
  12. Jeauxm

    Member

    May 8, 2013
    32
    0
    kubeek - that was AWESOME !!! I will have to google that myself - I have folks asking me about stuff all the time and they could just do what I did - google it !!!! I loved the animated google search............
     
  13. diljot5394

    Thread Starter New Member

    May 9, 2013
    5
    0
    being ur junior, thanx for reply

    i got the idea for monostable timer 2 days ago, but couldnt find any way to trigger it with ir sensor for 1 second and run motor for 5 seconds, please please help dont tease me
    its request to u and urgent
     
  14. JoeJester

    AAC Fanatic!

    Apr 26, 2005
    3,373
    1,159
    What are the motor specifications? Voltage and Current.

    What sensor are you using to "trigger" the event that requires the motor to run for 1 second?

    This is your homework. If you want me to provide a solution, I need the answers to the questions and your professor's email address. After all, you seem like you have minimum interest in doing your homework.
     
  15. diljot5394

    Thread Starter New Member

    May 9, 2013
    5
    0
    it's a small toy car motor with 1.5 to 4.5V DC

    most probably i will be using IR sensor (like a Beam cut Sensor), which when blocked for 1 second, gives trigger to the motor to run for 5 seconds


    ABout Home work: it's not my homework, even i am not doing any electrical study, it's just a hobby assignment to show someone special coming today evening

    thnx
     
  16. Matter45

    New Member

    Dec 13, 2012
    26
    1
    Ive got the solution!

    LEARN BASIC ELETRONICS!

    Nothing is for free.

    How old are you? 12?
     
  17. JoeJester

    AAC Fanatic!

    Apr 26, 2005
    3,373
    1,159
    Here ya' go ... you provide a pulse of 5V and the output will go high for 5.5 seconds

    You got my only. Freebie for the year.
     
    Last edited: May 10, 2013
    diljot5394 likes this.
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