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Door Latch opener switch

Discussion in 'General Electronics Discussion' started by Suraj00797, Jan 2, 2013.

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  1. Suraj00797

    Suraj00797

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    Jan 2, 2013
    I need a circuit for opening a door's latch using IR LED switch. Please help.
     
  2. CDRIVE

    CDRIVE Hauling 10' pipe on a Trek Shift3

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    More information please. Is the transmitter going to be a battery operated hand held device? What about the receiver end? Will it also be battery operated or will a wallwart suffice? Keep in mind that a solenoid, which is commonly used to pull the latch, will draw appreciable current.

    Chris
     
  3. Suraj00797

    Suraj00797

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    Jan 2, 2013
    Yes both the Tx and Rx are battery operated. The device will be used only for pulling the latch ( Don't have any idea about pushing the latch back, any suggestions are welcomed). And does it need any coding? Thanks for the reply.
     
  4. Suraj00797

    Suraj00797

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    Jan 2, 2013
    Sir please do reply. And apologies for my late reply(was on some serious work all those days). I need help on this circuit very urgently. Thanks in advance.
     
  5. CDRIVE

    CDRIVE Hauling 10' pipe on a Trek Shift3

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    Please describe the latch or, better yet, post a photo of it.

    Chris
     
  6. Suraj00797

    Suraj00797

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    Jan 2, 2013
    Sir, I din't yet start working on it. First of all i need a model of it, that is what i'm asking you to help me with. Does the latching solenoid work on a 9v battery supply? And does the IR Rx and Tx require any coding?
     
  7. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    So, let me get this straight... You're asking us for detailed specifications for an unknown device that you haven't chosen yet?

    In that case the answer is: definitely!*

    *definitely maybe
     
  8. CDRIVE

    CDRIVE Hauling 10' pipe on a Trek Shift3

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    If you're referring to what's commonly known as a '9V Transistor Radio Battery' then absolutely and unequivocally NO!

    Chris
     
  9. Suraj00797

    Suraj00797

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    Jan 2, 2013
    Okay Let me get this clear, I'm actually working on a door latch opener which will be controlled by a remote(Infrared). I just need to know what are the specifications of a latching solenoid which can be used for this device, and whether the infrared remote require any coding for the latch opening operation.
     
  10. Suraj00797

    Suraj00797

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    Jan 2, 2013
    Okay, so what's the minimum voltage required for its working?
     
  11. BobK

    BobK

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    Jan 5, 2010
    You will determine that when you pick a solenoid!

    Bob
     
  12. CDRIVE

    CDRIVE Hauling 10' pipe on a Trek Shift3

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    May 8, 2012
    Unless this solenoid is unlatching a dollhouse door I don't see battery operation practical. To power a typical (human size) door latch for a reasonable period of time, without recharging or battery replacement, would require D cells or rechargeable Nicad, Lith-Ion, etc packs.

    Chris
     
  13. Suraj00797

    Suraj00797

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    Jan 2, 2013
    Okay. I need a circuit for the Remote controlling operation of the circuit, could you please post a circuit which works on IR and does a single operation(Opening of latch).
     
    Last edited: Jan 18, 2013
  14. CDRIVE

    CDRIVE Hauling 10' pipe on a Trek Shift3

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    No! How can we provide information when we receive none from you?

    Chris
     
  15. Suraj00797

    Suraj00797

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    Jan 2, 2013
    Okay, what all information do you need? What i know is Astable multivibrator can be used as a 38Khz transmitter but i'm not sure if it needs modulation, and i don't know which IC to be used in the receiver.
     
  16. CDRIVE

    CDRIVE Hauling 10' pipe on a Trek Shift3

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    The fact of the matter is the transmitter and receiver aren't an issue here There are numerous IR kits available that will be cheaper than building it by procuring the components individually ... and they come with the PCB!

    Chris
     
  17. Suraj00797

    Suraj00797

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    Jan 2, 2013
    Yes sir, i'm aware of that. But it's actually a college product, so it's kinda do it yourself type. So i need a practical working circuit for the Rx and Tx.
     
  18. CDRIVE

    CDRIVE Hauling 10' pipe on a Trek Shift3

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    May 8, 2012
    So this is college 2013? Here's a tip for you. If and when you graduate firms aren't going to take you aboard based on your degree alone. They will sit your butt down in an empty conference room while you wait for an engineer; typically the chief engineer. When he arrives he will pick your brain and quiz you with schematics he'll either ask you to draw or to explain one of his own.

    Here's another tip.. We don't do your homework!

    Chris
     
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