Recent content by Silent Jack

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    Heat transfer theory

    Would a small fluid based radiator plus a low speed fan be more efficient.  Our house growing up was hot water heated and quite efficient.  Also a friend of mine heats his small home with an electric oil filled radiator.  Certainly the wattage for a room heater is around the 900-1500W range, but...
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    Solenoids

    So oversaturation could result in damage to the circuit through blowby?
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    Putting a light in my closet

    There are numerous ways of physically doing the job, but where homes are concerned there are certain regulations you should follow.  Most of them are not just nonsense legal crud either, they are for your safety as well.  When it comes to wiring in your home, you should always do it the right...
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    Follow up "How to rebuild a Li-Ion battery pack"

    I suspect, both software and hardware come into play as far as answering this is concerned.  If its a relatively "dumb" circuit, it may simply function as long as adequate power levels exist.  If its "pickier", it might want to register a certain predefined module that has particular attributes...
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    Solenoids

    When building and powering a solenoid, is more voltage/capacitance better for a strong fast field generation?  Or is it something of a balance between the two?  Secondly, how much does saturation come into play were the plunger portion is concerned?
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    App that blocks outgoing calls

    I'd certainly like to know if there is one.
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    soil moisture sensors

    It will depend on the sensor you use as to the format of the feedback you receive and how it needs to be processed.  Also depends on what kind of data you want to collect.  What MCU are you using and what kind of data do you want to collect?
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    timer to trigger latch

    So you're not using a coil?
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    Solenoid driver circuit

    Any free software that recommend in particular?
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    Where to find solder tips

    What would you consider an optimal wattage for general usuage?
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    timer to trigger latch

    How large an electromagnet are you using?
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    Solenoid driver circuit

    I'd be curious to see this as well.
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    help me plzzzzz

    Why not build an AM radio receiver?
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    Making Connections

    I could give you the physical specs of the coil, but I don't know its impedence.  What is the best way to determine it?
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    Making Connections

    What have you found to work best in your experience?
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