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Temperature controlled Fan (AT89S52)

Discussion in 'Doubts in My Projects' started by Binu, Jun 2, 2007.

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Page 34 of 39
  1. shefali

    shefali New Member

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    Temperature controlled Fan (AT89S52)
    the doubt is regarding this project...
    i wana know what is the purpose of the 230v AC in the following circuit
    fan1.jpg
    and what exactly it is.
    please help!!!
    shefali, Jun 26, 2011
    #331
  3. raviyuvarajc6

    raviyuvarajc6 New Member

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    can you tell me what is the out put for the pin A please post as soon as possible
    raviyuvarajc6, Jun 29, 2011
    #332
  4. Binu

    Binu Administrator

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    Its for the fan.
    Its the zero crossing detector output.
    Binu, Jun 29, 2011
    #333
  5. Ablaze Projects

    Ablaze Projects New Member

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    hi binu can u tell me that wether it is VCO or it is COMPARATOR o/p is going in pin no.13 (INT1) in temp. controlled fan...
    And tell me that "( INCLUDE REG_51.PDF)" what is it in the source code of the Auto.plant irrigator, bcoz i never heard about (.PDF)...pls help for our projects for me and my friend...pls rply fast bcoz our last date of submission is 5th july...pls replay fast....
    Thanking you.....
    Ablaze Projects, Jul 3, 2011
    #334
  6. zizooy

    zizooy New Member

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    hi' can u send me ur webpage .. plz (zizooy@yahoo.com)
    zizooy, Jul 7, 2011
    #335
  7. shefali

    shefali New Member

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    what is the 9 pin component at pin 21(to pin 28) of the microcontroller?
    where is MOC3011??

    Attached Files:

    shefali, Jul 12, 2011
    #336
  8. tilu

    tilu New Member

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    Hi Binu sir,
    how does LM358 detects zero crossing point?Would u mind explaining it clearly?
    tilu, Jul 12, 2011
    #337
  9. aishah

    aishah New Member

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    hai, may i ask wat software i should i use to open your programming codes ? can i use quincy ?
    aishah, Jul 16, 2011
    #338
  10. tibbu

    tibbu Super Moderator Staff Member

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    hi ashish,

    i depends which type of code you are looking to open. however if you are willing to just read them then open them in simple note pad.
    tibbu, Jul 17, 2011
    #339
  11. tibbu

    tibbu Super Moderator Staff Member

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    9 pin component is a SIP connector for connecting resistor network for port pull up purpose. there is a 8 pin IC base at left top corner on which MOC will be placed.
    tibbu, Jul 17, 2011
    #340
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